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1# This requires aio headers to build.
2# Should work automagically out of deps now.
3import os
4from autotest_lib.client.bin import test, utils
5
6
7class aiostress(test.test):
8    version = 3
9
10    def initialize(self):
11        self.job.require_gcc()
12        self.job.setup_dep(['libaio'])
13        ldflags = '-L ' + self.autodir + '/deps/libaio/lib'
14        cflags = '-I ' + self.autodir + '/deps/libaio/include'
15        self.gcc_flags = ldflags + ' ' + cflags
16
17
18    # ftp://ftp.suse.com/pub/people/mason/utils/aio-stress.c
19    def setup(self, tarball = None):
20        os.mkdir(self.srcdir)
21        os.chdir(self.srcdir)
22        utils.system('cp ' + self.bindir+'/aio-stress.c .')
23        os.chdir(self.srcdir)
24        self.gcc_flags += ' -Wall -lpthread -laio'
25        cmd = 'gcc ' + self.gcc_flags + ' aio-stress.c -o aio-stress'
26        utils.system(cmd)
27
28
29    def run_once(self, args = ''):
30        os.chdir(self.tmpdir)
31        libs = self.autodir+'/deps/libaio/lib/'
32        ld_path = utils.prepend_path(libs,
33                                      utils.environ('LD_LIBRARY_PATH'))
34        var_ld_path = 'LD_LIBRARY_PATH=' + ld_path
35        cmd = self.srcdir + '/aio-stress ' + args + ' poo'
36
37        stderr = os.path.join(self.debugdir, 'stderr')
38        utils.system('%s %s 2> %s' % (var_ld_path, cmd, stderr))
39        report = open(stderr)
40        self.format_results(report)
41
42
43    def format_results(self, report):
44        for line in report:
45            if 'threads' in line:
46                if 'files' in line:
47                    if 'contexts' in line:
48                        break
49
50        keyval = {}
51        for line in report:
52            line = line.split(')')[0]
53            key, value = line.split('(')
54            key = key.strip().replace(' ', '_')
55            value = value.split()[0]
56            keyval[key] = value
57
58        self.write_perf_keyval(keyval)
59
60"""
61file size 1024MB, record size 64KB, depth 64, ios per iteration 8
62max io_submit 8, buffer alignment set to 4KB
63threads 1 files 1 contexts 1 context offset 2MB verification off
64write on poo (245.77 MB/s) 1024.00 MB in 4.17s
65thread 0 write totals (55.86 MB/s) 1024.00 MB in 18.33s
66read on poo (1311.54 MB/s) 1024.00 MB in 0.78s
67thread 0 read totals (1307.66 MB/s) 1024.00 MB in 0.78s
68random write on poo (895.47 MB/s) 1024.00 MB in 1.14s
69thread 0 random write totals (18.42 MB/s) 1024.00 MB in 55.59s
70random read on poo (1502.89 MB/s) 1024.00 MB in 0.68s
71thread 0 random read totals (1474.36 MB/s) 1024.00 MB in 0.69s
72"""
73