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87 lines
3.1 KiB
87 lines
3.1 KiB
4 months ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<HTML>
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<HEAD>
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<META HTTP-EQUIV="Content-Type" CONTENT="text/html;CHARSET=iso-8859-1">
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<meta name="Copyright" content="Copyright (C) 2016 and later: Unicode, Inc. and others.
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License & terms of use: http://www.unicode.org/copyright.html
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Copyright (c) 2002-2008, International Business Machines Corporation and others. All Rights Reserved.">
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<META NAME="GENERATOR" Content="Visual Page 2.0 for Windows">
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<TITLE>collperf</TITLE>
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</HEAD>
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<BODY BGCOLOR="white">
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<H2>collperf</H2>
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<P>collperf is a test program for comparing collation performance and key lengths of ICU, Windows native collation
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and Unix/POSIX collation. It operates on a file of lines (names, for example), and performs one of three tests:</P>
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<OL>
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<LI>Sort Key generation. Report on key lengths and key generation times.
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<LI>Binary search. Report the average time required to look up each of the names (file lines) from the file in
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a sorted list of all of the names.
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<LI>Quick Sort. Report the time required to sort the file in memory, using the C library qsort function. The file
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order is randomized prior to the sort.
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</OL>
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<P>
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<P><B>Usage Summary</B></P>
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<BLOCKQUOTE>
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<P>
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<TABLE BORDER="0" WIDTH="100%" BGCOLOR="#FFFBF0">
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<TR>
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<TD WIDTH="100%">
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<P><TT>collperf -help</TT>
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<BLOCKQUOTE>
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<PRE><TT>Usage: strperf options...
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-help Display this message.
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-file file_name utf-16 format file of names
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-locale name ICU locale to use. Default is en_US
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-langid 0x1234 Windows Language ID number. Default 0x409 (en_US)
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see http://msdn.microsoft.com/library/psdk/winbase/nls_8xo3.htm
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-win Run test using Windows native services. (ICU is default)
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-unix Run test using Unix strxfrm, strcoll services.
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-uselen Use API with string lengths. Default is null-terminated strings
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-usekeys Run tests using sortkeys rather than strcoll
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-loop nnnn Loopcount for test. Adjust for reasonable total running time.
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-terse Terse numbers-only output. Intended for use by scripts.
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-french French accent ordering
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-norm Normalizing mode on
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-shifted Shifted mode
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-lower Lower case first
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-upper Upper case first
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-case Enable separate case level
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-level n Sort level, 1 to 5, for Primary, Secndary, Tertiary, Quaternary, Identical
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-binsearch Binary Search timing test
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-keygen Sort Key Generation timing test
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-qsort Quicksort timing test</TT></PRE>
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</BLOCKQUOTE>
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</TD>
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</TR>
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</TABLE>
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</P>
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</BLOCKQUOTE>
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<P><B>Example</B></P>
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<BLOCKQUOTE>
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<P>
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<TABLE BORDER="0" WIDTH="100%" BGCOLOR="#FFFBF0">
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<TR>
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<TD WIDTH="100%"><TT>C:\>collperf -loop 200 -file latin.txt -keygen -shifted -level 4<BR>
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file "latin.txt", 7604 lines.<BR>
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Sort Key Generation: total # of keys = 197704<BR>
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Sort Key Generation: time per key = 4253 ns<BR>
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Key Length / character = 1.730054</TT></TD>
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</TR>
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</TABLE>
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</BLOCKQUOTE>
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<P>
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</BODY>
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</HTML>
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