1 #DESCRIPTION:ltp A-sync IO Stress IO tests
3 # aio-stress [-s size] [-r size] [-a size] [-d num] [-b num]
4 # [-i num] [-t num] [-c num] [-C size] [-nxhlvOS ]
5 # file1 [/test/aiodio/file2 ...]
6 # -a size in KB at which to align buffers
7 # -b max number of iocbs to give io_submit at once
8 # -c number of io contexts per file
9 # -C offset between contexts, default 2MB
10 # -s size in MB of the test file(s), default 1024MB
11 # -r record size in KB used for each io, default 64KB
12 # -d number of pending aio requests for each file, default 64
13 # -i number of ios per file sent before switching
14 # to the next file, default 8
15 # -O Use O_DIRECT (not available in 2.4 kernels),
16 # -S Use O_SYNC for writes
17 # -o add an operation to the list: write=0, read=1,
18 # random write=2, random read=3.
19 # repeat -o to specify multiple ops: -o 0 -o 1 etc.
20 # -m shm use ipc shared memory for io buffers instead of malloc
21 # -m shmfs mmap a file in /dev/shm for io buffers
22 # -n no fsyncs between write stage and read stage
23 # -l print io_submit latencies after each stage
24 # -t number of threads to run
25 # -v verification of bytes written
26 # -x turn off thread stonewalling
29 ADS2001 aio-stress -I500 -o2 -S -r32 -t2 /test/aiodio/junkfile /test/aiodio2/file2
30 ADS2002 aio-stress -I500 -o3 -S -r8 -t2 /test/aiodio/junkfile /test/aiodio2/file2
31 ADS2003 aio-stress -I500 -o3 -S -r16 -t2 /test/aiodio/junkfile /test/aiodio2/file2
32 ADS2004 aio-stress -I500 -o3 -S -r32 -t4 /test/aiodio/junkfile /test/aiodio2/file2 /test/aiodio/file3 /test/aiodio2/file4
33 ADS2005 aio-stress -I500 -o3 -S -r64 -t4 /test/aiodio/junkfile /test/aiodio2/file2 /test/aiodio/file3 /test/aiodio2/file4
34 ADS2006 aio-stress -I500 -o2 -O -r32 -t2 /test/aiodio/junkfile /test/aiodio2/file2
35 ADS2007 aio-stress -I500 -o3 -O -r8 -t2 /test/aiodio/junkfile /test/aiodio2/file2
36 ADS2008 aio-stress -I500 -o3 -O -r16 -t2 /test/aiodio/junkfile /test/aiodio2/file2
37 ADS2009 aio-stress -I500 -o3 -O -r32 -t4 /test/aiodio/junkfile /test/aiodio2/file2 /test/aiodio/file3 /test/aiodio2/file4
38 ADS2010 aio-stress -I500 -o3 -O -r64 -t4 /test/aiodio/junkfile /test/aiodio2/file2 /test/aiodio/file3 /test/aiodio2/file4