| #DESCRIPTION:ltp A-sync IO Stress IO tests |
| # |
| # aio-stress [-s size] [-r size] [-a size] [-d num] [-b num] |
| # [-i num] [-t num] [-c num] [-C size] [-nxhlvOS ] |
| # file1 [file2 ...] |
| # -a size in KB at which to align buffers |
| # -b max number of iocbs to give io_submit at once |
| # -c number of io contexts per file |
| # -C offset between contexts, default 2MB |
| # -s size in MB of the test file(s), default 1024MB |
| # -r record size in KB used for each io, default 64KB |
| # -d number of pending aio requests for each file, default 64 |
| # -i number of ios per file sent before switching |
| # to the next file, default 8 |
| # -O Use O_DIRECT (not available in 2.4 kernels), |
| # -S Use O_SYNC for writes |
| # -o add an operation to the list: write=0, read=1, |
| # random write=2, random read=3. |
| # repeat -o to specify multiple ops: -o 0 -o 1 etc. |
| # -m shm use ipc shared memory for io buffers instead of malloc |
| # -m shmfs mmap a file in /dev/shm for io buffers |
| # -n no fsyncs between write stage and read stage |
| # -l print io_submit latencies after each stage |
| # -t number of threads to run |
| # -v verification of bytes written |
| # -x turn off thread stonewalling |
| # -h this message |
| # |
| ADS2001 aio-stress -I500 -o2 -S -r32 -t2 $TMPDIR/junkfile $TMPDIR/file2 |
| ADS2002 aio-stress -I500 -o3 -S -r8 -t2 $TMPDIR/junkfile $TMPDIR/file2 |
| ADS2003 aio-stress -I500 -o3 -S -r16 -t2 $TMPDIR/junkfile $TMPDIR/file2 |
| ADS2004 aio-stress -I500 -o3 -S -r32 -t4 $TMPDIR/junkfile $TMPDIR/file2 $TMPDIR/file3 $TMPDIR/file4 |
| ADS2005 aio-stress -I500 -o3 -S -r64 -t4 $TMPDIR/junkfile $TMPDIR/file2 $TMPDIR/file3 $TMPDIR/file4 |
| ADS2006 aio-stress -I500 -o2 -O -r32 -t2 $TMPDIR/junkfile $TMPDIR/file2 |
| ADS2007 aio-stress -I500 -o3 -O -r8 -t2 $TMPDIR/junkfile $TMPDIR/file2 |
| ADS2008 aio-stress -I500 -o3 -O -r16 -t2 $TMPDIR/junkfile $TMPDIR/file2 |
| ADS2009 aio-stress -I500 -o3 -O -r32 -t4 $TMPDIR/junkfile $TMPDIR/file2 $TMPDIR/file3 $TMPDIR/file4 |
| ADS2010 aio-stress -I500 -o3 -O -r64 -t4 $TMPDIR/junkfile $TMPDIR/file2 $TMPDIR/file3 $TMPDIR/file4 |
