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43 lines
1.3 KiB
43 lines
1.3 KiB
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# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import os, shutil, re
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from autotest_lib.client.bin import utils, test
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class ddtest(test.test):
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version = 2
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def setup(self, tarball='ddtest.tar.gz'):
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tarball = utils.unmap_url(self.bindir, tarball, self.tmpdir)
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utils.extract_tarball_to_dir(tarball, self.srcdir)
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os.chdir(self.srcdir)
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utils.system('make build')
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def initialize(self):
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self.job.require_gcc()
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self.results = []
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self.job.drop_caches_between_iterations = True
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def run_once(self, dir=None, blocksize=1024, blocknum=262144, threads=20):
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if not dir:
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dir = os.path.join(self.srcdir, 'rdir')
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shutil.rmtree(dir, True)
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os.mkdir(dir)
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args = '-D ' + dir
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args += ' -b %d' % blocksize
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args += ' -n %d' % blocknum
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args += ' -t %d' % threads
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self.results.append(utils.system_output(os.path.join(self.srcdir,
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'ddtest') + ' ' + args))
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def postprocess(self):
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pattern = re.compile(r"throughput is (.*?) MB/sec")
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for throughput in pattern.findall("\n".join(self.results)):
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self.write_perf_keyval({'throughput':throughput})
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