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874 lines
22 KiB
874 lines
22 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <assert.h>
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#include <pthread.h>
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#include <sys/statfs.h>
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#include <sys/resource.h>
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#include <inttypes.h>
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#include "ioshark.h"
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#define IOSHARK_MAIN
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#include "ioshark_bench.h"
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/*
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* Note on "quick" mode where we do reads on existing /system,
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* /vendor and other files in ro partitions, instead of creating
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* them. The ioshark compiler builds up a table of all the files
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* in /system, /vendor and other ro partitions. For files in this
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* list, the benchmark skips the pre-creation of these files and
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* reads them directly.
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* The code relevant to this is in *filename_cache*.
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*/
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char *progname;
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#define MAX_INPUT_FILES 8192
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#define MAX_THREADS 8192
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struct thread_state_s {
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char *filename;
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FILE *fp;
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int num_files;
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void *db_handle;
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};
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struct thread_state_s thread_state[MAX_INPUT_FILES];
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int num_input_files = 0;
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int next_input_file;
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pthread_t tid[MAX_THREADS];
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/*
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* Global options
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*/
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int do_delay = 0;
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int verbose = 0;
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int summary_mode = 0;
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int quick_mode = 0;
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char *blockdev_name = NULL; /* if user would like to specify blockdev */
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#if 0
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static long gettid()
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{
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return syscall(__NR_gettid);
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}
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#endif
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void usage()
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{
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fprintf(stderr, "%s [-b blockdev_name] [-d preserve_delays] [-n num_iterations] [-t num_threads] -q -v | -s <list of parsed input files>\n",
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progname);
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fprintf(stderr, "%s -s, -v are mutually exclusive\n",
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progname);
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exit(EXIT_FAILURE);
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}
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pthread_mutex_t time_mutex = PTHREAD_MUTEX_INITIALIZER;
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pthread_mutex_t stats_mutex = PTHREAD_MUTEX_INITIALIZER;
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pthread_mutex_t work_mutex = PTHREAD_MUTEX_INITIALIZER;
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struct timeval aggregate_file_create_time;
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struct timeval debug_file_create_time;
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struct timeval aggregate_file_remove_time;
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struct timeval aggregate_IO_time;
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struct timeval aggregate_delay_time;
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u_int64_t aggr_op_counts[IOSHARK_MAX_FILE_OP];
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struct rw_bytes_s aggr_io_rw_bytes;
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struct rw_bytes_s aggr_create_rw_bytes;
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/*
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* Locking needed here because aggregate_delay_time is updated
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* from multiple threads concurrently.
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*/
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static void
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update_time(struct timeval *aggr_time,
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struct timeval *delta_time)
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{
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struct timeval tmp;
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pthread_mutex_lock(&time_mutex);
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timeradd(aggr_time, delta_time, &tmp);
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*aggr_time = tmp;
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pthread_mutex_unlock(&time_mutex);
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}
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static void
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update_op_counts(u_int64_t *op_counts)
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{
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int i;
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pthread_mutex_lock(&stats_mutex);
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for (i = IOSHARK_LSEEK ; i < IOSHARK_MAX_FILE_OP ; i++)
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aggr_op_counts[i] += op_counts[i];
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pthread_mutex_unlock(&stats_mutex);
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}
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static void
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update_byte_counts(struct rw_bytes_s *dest, struct rw_bytes_s *delta)
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{
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pthread_mutex_lock(&stats_mutex);
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dest->bytes_read += delta->bytes_read;
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dest->bytes_written += delta->bytes_written;
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pthread_mutex_unlock(&stats_mutex);
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}
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static int work_next_file;
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static int work_num_files;
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void
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init_work(int next_file, int num_files)
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{
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pthread_mutex_lock(&work_mutex);
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work_next_file = next_file;
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work_num_files = work_next_file + num_files;
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pthread_mutex_unlock(&work_mutex);
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}
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/* Dole out the next file to work on to the thread */
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static struct thread_state_s *
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get_work()
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{
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struct thread_state_s *work = NULL;
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pthread_mutex_lock(&work_mutex);
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if (work_next_file < work_num_files)
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work = &thread_state[work_next_file++];
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pthread_mutex_unlock(&work_mutex);
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return work;
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}
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static void
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create_files(struct thread_state_s *state)
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{
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int i;
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struct ioshark_file_state file_state;
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char path[MAX_IOSHARK_PATHLEN];
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void *db_node;
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struct rw_bytes_s rw_bytes;
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char *filename;
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int readonly;
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memset(&rw_bytes, 0, sizeof(struct rw_bytes_s));
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for (i = 0 ; i < state->num_files ; i++) {
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if (ioshark_read_file_state(state->fp, &file_state) != 1) {
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fprintf(stderr, "%s read error tracefile\n",
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progname);
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exit(EXIT_FAILURE);
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}
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/*
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* Check to see if the file is in a readonly partition,
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* in which case, we don't have to pre-create the file
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* we can just read the existing file.
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*/
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filename =
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get_ro_filename(file_state.global_filename_ix);
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if (quick_mode)
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assert(filename != NULL);
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if (quick_mode == 0 ||
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is_readonly_mount(filename, file_state.size) == 0) {
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sprintf(path, "file.%d.%"PRIu64"",
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(int)(state - thread_state),
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file_state.fileno);
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create_file(path, file_state.size,
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&rw_bytes);
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filename = path;
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readonly = 0;
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} else {
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readonly = 1;
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}
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db_node = files_db_add_byfileno(state->db_handle,
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file_state.fileno,
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readonly);
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files_db_update_size(db_node, file_state.size);
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files_db_update_filename(db_node, filename);
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}
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update_byte_counts(&aggr_create_rw_bytes, &rw_bytes);
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}
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static void
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do_one_io(void *db_node,
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struct ioshark_file_operation *file_op,
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u_int64_t *op_counts,
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struct rw_bytes_s *rw_bytes,
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char **bufp, int *buflen)
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{
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assert(file_op->ioshark_io_op < IOSHARK_MAX_FILE_OP);
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op_counts[file_op->ioshark_io_op]++;
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switch (file_op->ioshark_io_op) {
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int ret;
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char *p;
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int fd;
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case IOSHARK_LSEEK:
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case IOSHARK_LLSEEK:
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ret = lseek(files_db_get_fd(db_node),
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file_op->lseek_offset,
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file_op->lseek_action);
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if (ret < 0) {
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fprintf(stderr,
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"%s: lseek(%s %"PRIu64" %d) returned error %d\n",
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progname, files_db_get_filename(db_node),
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file_op->lseek_offset,
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file_op->lseek_action, errno);
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exit(EXIT_FAILURE);
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}
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break;
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case IOSHARK_PREAD64:
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p = get_buf(bufp, buflen, file_op->prw_len, 0);
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ret = pread(files_db_get_fd(db_node), p,
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file_op->prw_len, file_op->prw_offset);
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rw_bytes->bytes_read += file_op->prw_len;
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if (ret < 0) {
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fprintf(stderr,
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"%s: pread(%s %"PRIu64" %"PRIu64") error %d\n",
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progname,
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files_db_get_filename(db_node),
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file_op->prw_len,
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file_op->prw_offset, errno);
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exit(EXIT_FAILURE);
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}
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break;
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case IOSHARK_PWRITE64:
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p = get_buf(bufp, buflen, file_op->prw_len, 1);
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ret = pwrite(files_db_get_fd(db_node), p,
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file_op->prw_len, file_op->prw_offset);
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rw_bytes->bytes_written += file_op->prw_len;
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if (ret < 0) {
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fprintf(stderr,
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"%s: pwrite(%s %"PRIu64" %"PRIu64") error %d\n",
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progname,
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files_db_get_filename(db_node),
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file_op->prw_len,
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file_op->prw_offset, errno);
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exit(EXIT_FAILURE);
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}
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break;
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case IOSHARK_READ:
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p = get_buf(bufp, buflen, file_op->rw_len, 0);
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ret = read(files_db_get_fd(db_node), p,
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file_op->rw_len);
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rw_bytes->bytes_read += file_op->rw_len;
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if (ret < 0) {
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fprintf(stderr,
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"%s: read(%s %"PRIu64") error %d\n",
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progname,
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files_db_get_filename(db_node),
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file_op->rw_len,
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errno);
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exit(EXIT_FAILURE);
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}
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break;
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case IOSHARK_WRITE:
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p = get_buf(bufp, buflen, file_op->rw_len, 1);
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ret = write(files_db_get_fd(db_node), p,
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file_op->rw_len);
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rw_bytes->bytes_written += file_op->rw_len;
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if (ret < 0) {
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fprintf(stderr,
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"%s: write(%s %"PRIu64") error %d\n",
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progname,
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files_db_get_filename(db_node),
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file_op->rw_len,
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errno);
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exit(EXIT_FAILURE);
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}
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break;
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case IOSHARK_MMAP:
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case IOSHARK_MMAP2:
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ioshark_handle_mmap(db_node, file_op,
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bufp, buflen, op_counts,
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rw_bytes);
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break;
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case IOSHARK_OPEN:
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if (file_op->open_flags & O_CREAT) {
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fd = open(files_db_get_filename(db_node),
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file_op->open_flags,
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file_op->open_mode);
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if (fd < 0) {
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/*
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* EEXIST error acceptable, others are fatal.
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* Although we failed to O_CREAT the file (O_EXCL)
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* We will force an open of the file before any
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* IO.
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*/
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if (errno == EEXIST) {
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return;
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} else {
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fprintf(stderr,
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"%s: O_CREAT open(%s %x %o) error %d\n",
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progname,
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files_db_get_filename(db_node),
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file_op->open_flags,
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file_op->open_mode, errno);
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exit(EXIT_FAILURE);
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}
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}
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} else {
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fd = open(files_db_get_filename(db_node),
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file_op->open_flags);
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if (fd < 0) {
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if (file_op->open_flags & O_DIRECTORY) {
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/* O_DIRECTORY open()s should fail */
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return;
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} else {
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fprintf(stderr,
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"%s: open(%s %x) error %d\n",
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progname,
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files_db_get_filename(db_node),
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file_op->open_flags,
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errno);
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exit(EXIT_FAILURE);
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}
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}
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}
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files_db_close_fd(db_node);
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files_db_update_fd(db_node, fd);
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break;
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case IOSHARK_FSYNC:
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case IOSHARK_FDATASYNC:
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if (file_op->ioshark_io_op == IOSHARK_FSYNC) {
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ret = fsync(files_db_get_fd(db_node));
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if (ret < 0) {
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fprintf(stderr,
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"%s: fsync(%s) error %d\n",
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progname,
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files_db_get_filename(db_node),
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errno);
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exit(EXIT_FAILURE);
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}
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} else {
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ret = fdatasync(files_db_get_fd(db_node));
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if (ret < 0) {
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fprintf(stderr,
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"%s: fdatasync(%s) error %d\n",
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progname,
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files_db_get_filename(db_node),
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errno);
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exit(EXIT_FAILURE);
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}
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}
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break;
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case IOSHARK_CLOSE:
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ret = close(files_db_get_fd(db_node));
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if (ret < 0) {
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fprintf(stderr,
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"%s: close(%s) error %d\n",
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progname,
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files_db_get_filename(db_node), errno);
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exit(EXIT_FAILURE);
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}
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files_db_update_fd(db_node, -1);
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break;
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default:
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fprintf(stderr, "%s: unknown FILE_OP %d\n",
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progname, file_op->ioshark_io_op);
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exit(EXIT_FAILURE);
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break;
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}
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}
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static void
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do_io(struct thread_state_s *state)
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{
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void *db_node;
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struct ioshark_header header;
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struct ioshark_file_operation file_op;
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int fd;
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int i;
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char *buf = NULL;
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int buflen = 0;
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struct timeval total_delay_time;
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u_int64_t op_counts[IOSHARK_MAX_FILE_OP];
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struct rw_bytes_s rw_bytes;
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rewind(state->fp);
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if (ioshark_read_header(state->fp, &header) != 1) {
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fprintf(stderr, "%s read error %s\n",
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progname, state->filename);
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exit(EXIT_FAILURE);
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}
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/*
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* First open and pre-create all the files. Indexed by fileno.
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*/
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timerclear(&total_delay_time);
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memset(&rw_bytes, 0, sizeof(struct rw_bytes_s));
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memset(op_counts, 0, sizeof(op_counts));
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fseek(state->fp,
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sizeof(struct ioshark_header) +
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header.num_files * sizeof(struct ioshark_file_state),
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SEEK_SET);
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/*
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* Loop over all the IOs, and launch each
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*/
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for (i = 0 ; i < (int)header.num_io_operations ; i++) {
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if (ioshark_read_file_op(state->fp, &file_op) != 1) {
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fprintf(stderr, "%s read error trace.outfile\n",
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progname);
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goto fail;
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}
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if (do_delay) {
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struct timeval start;
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(void)gettimeofday(&start, (struct timezone *)NULL);
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usleep(file_op.delta_us);
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update_delta_time(&start, &total_delay_time);
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}
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db_node = files_db_lookup_byfileno(state->db_handle,
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file_op.fileno);
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if (db_node == NULL) {
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fprintf(stderr,
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"%s Can't lookup fileno %"PRIu64", fatal error\n",
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progname, file_op.fileno);
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fprintf(stderr,
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"%s state filename %s, i %d\n",
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progname, state->filename, i);
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goto fail;
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}
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if (file_op.ioshark_io_op != IOSHARK_OPEN &&
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files_db_get_fd(db_node) == -1) {
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int openflags;
|
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/*
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* This is a hack to workaround the fact that we did not
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* see an open() for this file until now. open() the
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* file O_RDWR, so that we can perform the IO.
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*/
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if (files_db_readonly(db_node))
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openflags = O_RDONLY;
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else
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openflags = O_RDWR;
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fd = open(files_db_get_filename(db_node),
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openflags);
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if (fd < 0) {
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fprintf(stderr, "%s: open(%s %x) error %d\n",
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progname,
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files_db_get_filename(db_node),
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openflags,
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errno);
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goto fail;
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}
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files_db_update_fd(db_node, fd);
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}
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do_one_io(db_node, &file_op,
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op_counts, &rw_bytes, &buf, &buflen);
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}
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free(buf);
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files_db_fsync_discard_files(state->db_handle);
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files_db_close_files(state->db_handle);
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update_time(&aggregate_delay_time, &total_delay_time);
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update_op_counts(op_counts);
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update_byte_counts(&aggr_io_rw_bytes, &rw_bytes);
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return;
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fail:
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free(buf);
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exit(EXIT_FAILURE);
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}
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void *
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io_thread(void *unused __attribute__((unused)))
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|
{
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struct thread_state_s *state;
|
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|
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srand(gettid());
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while ((state = get_work()))
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do_io(state);
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pthread_exit(NULL);
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return(NULL);
|
|
}
|
|
|
|
static void
|
|
do_create(struct thread_state_s *state)
|
|
{
|
|
struct ioshark_header header;
|
|
|
|
if (ioshark_read_header(state->fp, &header) != 1) {
|
|
fprintf(stderr, "%s read error %s\n",
|
|
progname, state->filename);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
state->num_files = header.num_files;
|
|
state->db_handle = files_db_create_handle();
|
|
create_files(state);
|
|
}
|
|
|
|
void *
|
|
create_files_thread(void *unused __attribute__((unused)))
|
|
{
|
|
struct thread_state_s *state;
|
|
|
|
while ((state = get_work()))
|
|
do_create(state);
|
|
pthread_exit(NULL);
|
|
return(NULL);
|
|
}
|
|
|
|
int
|
|
get_start_end(int *start_ix)
|
|
{
|
|
int i, j, ret_numfiles;
|
|
u_int64_t free_fs_bytes;
|
|
char *infile;
|
|
FILE *fp;
|
|
struct ioshark_header header;
|
|
struct ioshark_file_state file_state;
|
|
struct statfs fsstat;
|
|
static int fssize_clamp_next_index = 0;
|
|
static int chunk = 0;
|
|
|
|
if (fssize_clamp_next_index == num_input_files)
|
|
return 0;
|
|
if (statfs("/data/local/tmp", &fsstat) < 0) {
|
|
fprintf(stderr, "%s: Can't statfs /data/local/tmp\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
free_fs_bytes = (fsstat.f_bavail * fsstat.f_bsize) * 9 /10;
|
|
for (i = fssize_clamp_next_index; i < num_input_files; i++) {
|
|
infile = thread_state[i].filename;
|
|
fp = fopen(infile, "r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "%s: Can't open %s\n",
|
|
progname, infile);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (ioshark_read_header(fp, &header) != 1) {
|
|
fprintf(stderr, "%s read error %s\n",
|
|
progname, infile);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
for (j = 0 ; j < (int)header.num_files ; j++) {
|
|
if (ioshark_read_file_state(fp, &file_state) != 1) {
|
|
fprintf(stderr, "%s read error tracefile\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (quick_mode == 0 ||
|
|
!is_readonly_mount(
|
|
get_ro_filename(file_state.global_filename_ix),
|
|
file_state.size)) {
|
|
if (file_state.size > free_fs_bytes) {
|
|
fclose(fp);
|
|
goto out;
|
|
}
|
|
free_fs_bytes -= file_state.size;
|
|
}
|
|
}
|
|
fclose(fp);
|
|
}
|
|
out:
|
|
if (verbose) {
|
|
if (chunk > 0 || i < num_input_files) {
|
|
printf("Breaking up input files, Chunk %d: %d to %d\n",
|
|
chunk++, fssize_clamp_next_index, i - 1);
|
|
} else {
|
|
printf("Entire Dataset fits start = %d to %d, free_bytes = %ju\n",
|
|
fssize_clamp_next_index,
|
|
i - fssize_clamp_next_index,
|
|
free_fs_bytes);
|
|
}
|
|
}
|
|
*start_ix = fssize_clamp_next_index;
|
|
ret_numfiles = i - fssize_clamp_next_index;
|
|
fssize_clamp_next_index = i;
|
|
return ret_numfiles;
|
|
}
|
|
|
|
int
|
|
ioshark_pthread_create(pthread_t *tidp, void *(*start_routine)(void *))
|
|
{
|
|
pthread_attr_t attr;
|
|
|
|
pthread_attr_init(&attr);
|
|
pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
|
|
pthread_attr_setstacksize(&attr, (size_t)(1024*1024));
|
|
return pthread_create(tidp, &attr, start_routine, (void *)NULL);
|
|
}
|
|
|
|
void
|
|
wait_for_threads(int num_threads)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_threads; i++) {
|
|
pthread_join(tid[i], NULL);
|
|
tid[i] = 0;
|
|
}
|
|
}
|
|
|
|
#define IOSHARK_FD_LIM 8192
|
|
|
|
static void
|
|
sizeup_fd_limits(void)
|
|
{
|
|
struct rlimit r;
|
|
|
|
getrlimit(RLIMIT_NOFILE, &r);
|
|
if (r.rlim_cur >= IOSHARK_FD_LIM)
|
|
/* cur limit already at what we want */
|
|
return;
|
|
/*
|
|
* Size up both the Max and Cur to IOSHARK_FD_LIM.
|
|
* If we are not running as root, this will fail,
|
|
* catch that below and exit.
|
|
*/
|
|
if (r.rlim_max < IOSHARK_FD_LIM)
|
|
r.rlim_max = IOSHARK_FD_LIM;
|
|
r.rlim_cur = IOSHARK_FD_LIM;
|
|
if (setrlimit(RLIMIT_NOFILE, &r) < 0) {
|
|
fprintf(stderr, "%s: Can't setrlimit (RLIMIT_NOFILE, 8192)\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
getrlimit(RLIMIT_NOFILE, &r);
|
|
if (r.rlim_cur < IOSHARK_FD_LIM) {
|
|
fprintf(stderr, "%s: Can't setrlimit up to 8192\n",
|
|
progname);
|
|
fprintf(stderr, "%s: Running as root ?\n",
|
|
progname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int i;
|
|
FILE *fp;
|
|
struct stat st;
|
|
char *infile;
|
|
int num_threads = 0;
|
|
int num_iterations = 1;
|
|
int c;
|
|
int num_files, start_file;
|
|
struct thread_state_s *state;
|
|
|
|
progname = argv[0];
|
|
while ((c = getopt(argc, argv, "b:dn:st:qv")) != EOF) {
|
|
switch (c) {
|
|
case 'b':
|
|
blockdev_name = strdup(optarg);
|
|
break;
|
|
case 'd':
|
|
do_delay = 1;
|
|
break;
|
|
case 'n':
|
|
num_iterations = atoi(optarg);
|
|
break;
|
|
case 's':
|
|
/* Non-verbose summary mode for nightly runs */
|
|
summary_mode = 1;
|
|
break;
|
|
case 't':
|
|
num_threads = atoi(optarg);
|
|
break;
|
|
case 'q':
|
|
/*
|
|
* If quick mode is enabled, then we won't
|
|
* pre-create files that we are doing IO on that
|
|
* live in readonly partitions (/system, /vendor etc)
|
|
*/
|
|
quick_mode = 1;
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
|
|
if ((verbose + summary_mode) == 2)
|
|
usage();
|
|
|
|
if (num_threads > MAX_THREADS)
|
|
usage();
|
|
|
|
if (optind == argc)
|
|
usage();
|
|
|
|
sizeup_fd_limits();
|
|
|
|
for (i = optind; i < argc; i++) {
|
|
infile = argv[i];
|
|
if (stat(infile, &st) < 0) {
|
|
fprintf(stderr, "%s: Can't stat %s\n",
|
|
progname, infile);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
if (st.st_size == 0) {
|
|
fprintf(stderr, "%s: Empty file %s\n",
|
|
progname, infile);
|
|
continue;
|
|
}
|
|
fp = fopen(infile, "r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "%s: Can't open %s\n",
|
|
progname, infile);
|
|
continue;
|
|
}
|
|
thread_state[num_input_files].filename = infile;
|
|
thread_state[num_input_files].fp = fp;
|
|
num_input_files++;
|
|
}
|
|
|
|
if (num_input_files == 0) {
|
|
exit(EXIT_SUCCESS);
|
|
}
|
|
if (verbose) {
|
|
printf("Total Input Files = %d\n", num_input_files);
|
|
printf("Num Iterations = %d\n", num_iterations);
|
|
}
|
|
timerclear(&aggregate_file_create_time);
|
|
timerclear(&aggregate_file_remove_time);
|
|
timerclear(&aggregate_IO_time);
|
|
|
|
if (quick_mode)
|
|
init_filename_cache();
|
|
|
|
capture_util_state_before();
|
|
|
|
/*
|
|
* We pre-create the files that we need once and then we
|
|
* loop around N times doing IOs on the pre-created files.
|
|
*
|
|
* get_start_end() breaks up the total work here to make sure
|
|
* that all the files we need to pre-create fit into the
|
|
* available space in /data/local/tmp (hardcoded for now).
|
|
*
|
|
* If it won't fit, then we do several sweeps.
|
|
*/
|
|
while ((num_files = get_start_end(&start_file))) {
|
|
struct timeval time_for_pass;
|
|
|
|
/* Create files once */
|
|
if (!summary_mode)
|
|
printf("Doing Pre-creation of Files\n");
|
|
if (quick_mode && !summary_mode)
|
|
printf("Skipping Pre-creation of read-only Files\n");
|
|
if (num_threads == 0 || num_threads > num_files)
|
|
num_threads = num_files;
|
|
(void)system("echo 3 > /proc/sys/vm/drop_caches");
|
|
init_work(start_file, num_files);
|
|
(void)gettimeofday(&time_for_pass,
|
|
(struct timezone *)NULL);
|
|
for (i = 0; i < num_threads; i++) {
|
|
if (ioshark_pthread_create(&(tid[i]),
|
|
create_files_thread)) {
|
|
fprintf(stderr,
|
|
"%s: Can't create creator thread %d\n",
|
|
progname, i);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
wait_for_threads(num_threads);
|
|
update_delta_time(&time_for_pass, &aggregate_file_create_time);
|
|
/* Do the IOs N times */
|
|
for (i = 0 ; i < num_iterations ; i++) {
|
|
(void)system("echo 3 > /proc/sys/vm/drop_caches");
|
|
if (!summary_mode) {
|
|
if (num_iterations > 1)
|
|
printf("Starting Test. Iteration %d...\n",
|
|
i);
|
|
else
|
|
printf("Starting Test...\n");
|
|
}
|
|
init_work(start_file, num_files);
|
|
(void)gettimeofday(&time_for_pass,
|
|
(struct timezone *)NULL);
|
|
for (c = 0; c < num_threads; c++) {
|
|
if (ioshark_pthread_create(&(tid[c]),
|
|
io_thread)) {
|
|
fprintf(stderr,
|
|
"%s: Can't create thread %d\n",
|
|
progname, c);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
wait_for_threads(num_threads);
|
|
update_delta_time(&time_for_pass,
|
|
&aggregate_IO_time);
|
|
}
|
|
|
|
/*
|
|
* We are done with the N iterations of IO.
|
|
* Destroy the files we pre-created.
|
|
*/
|
|
init_work(start_file, num_files);
|
|
while ((state = get_work())) {
|
|
struct timeval start;
|
|
|
|
(void)gettimeofday(&start, (struct timezone *)NULL);
|
|
files_db_unlink_files(state->db_handle);
|
|
update_delta_time(&start, &aggregate_file_remove_time);
|
|
files_db_free_memory(state->db_handle);
|
|
}
|
|
}
|
|
if (!summary_mode) {
|
|
printf("Total Creation time = %ju.%ju (msecs.usecs)\n",
|
|
get_msecs(&aggregate_file_create_time),
|
|
get_usecs(&aggregate_file_create_time));
|
|
printf("Total Remove time = %ju.%ju (msecs.usecs)\n",
|
|
get_msecs(&aggregate_file_remove_time),
|
|
get_usecs(&aggregate_file_remove_time));
|
|
if (do_delay)
|
|
printf("Total delay time = %ju.%ju (msecs.usecs)\n",
|
|
get_msecs(&aggregate_delay_time),
|
|
get_usecs(&aggregate_delay_time));
|
|
printf("Total Test (IO) time = %ju.%ju (msecs.usecs)\n",
|
|
get_msecs(&aggregate_IO_time),
|
|
get_usecs(&aggregate_IO_time));
|
|
if (verbose)
|
|
print_bytes("Upfront File Creation bytes",
|
|
&aggr_create_rw_bytes);
|
|
print_bytes("Total Test (IO) bytes", &aggr_io_rw_bytes);
|
|
if (verbose)
|
|
print_op_stats(aggr_op_counts);
|
|
report_cpu_disk_util();
|
|
} else {
|
|
printf("%ju.%ju ",
|
|
get_msecs(&aggregate_file_create_time),
|
|
get_usecs(&aggregate_file_create_time));
|
|
printf("%ju.%ju ",
|
|
get_msecs(&aggregate_file_remove_time),
|
|
get_usecs(&aggregate_file_remove_time));
|
|
if (do_delay)
|
|
printf("%ju.%ju ",
|
|
get_msecs(&aggregate_delay_time),
|
|
get_usecs(&aggregate_delay_time));
|
|
printf("%ju.%ju ",
|
|
get_msecs(&aggregate_IO_time),
|
|
get_usecs(&aggregate_IO_time));
|
|
print_bytes(NULL, &aggr_io_rw_bytes);
|
|
report_cpu_disk_util();
|
|
printf("\n");
|
|
}
|
|
if (quick_mode)
|
|
free_filename_cache();
|
|
}
|