LU-9273 tests: disable random I/O in replay-ost-single/5

disable random I/O in replay-ost-single/5 as it's very slow
on ZFS - this is due to grants as the client consume them
way too quickly: 1MB blocksize + ~0.5MB metadata overhead
for each random 4K written by iozone.

This is a backport to b2_10 of master patch
Lustre-change: https://review.whamcloud.com/#/c/31671
Lustre-commit: e3bc6e681666aa2c60ada5f997966efa31fae68c

Test-Parameters: trivial ostcount=7 clients=2 ostfilesystemtype=zfs mdtfilesystemtype=zfs testlist=replay-ost-single envdefinitions=SLOW=yes,ONLY=5
Test-Parameters: trivial ostcount=7 clients=2 ostfilesystemtype=zfs mdtfilesystemtype=zfs testlist=replay-ost-single envdefinitions=SLOW=yes,ONLY=5
Test-Parameters: trivial ostcount=7 clients=2 ostfilesystemtype=zfs mdtfilesystemtype=zfs testlist=replay-ost-single envdefinitions=SLOW=yes,ONLY=5
Test-Parameters: trivial ostcount=7 clients=2 ostfilesystemtype=zfs mdtfilesystemtype=zfs testlist=replay-ost-single envdefinitions=SLOW=yes,ONLY=5
Test-Parameters: trivial ostcount=7 clients=2 ostfilesystemtype=zfs mdtfilesystemtype=zfs testlist=replay-ost-single envdefinitions=SLOW=yes,ONLY=5

Change-Id: Ic49429b8c681fdc16e5f95f483d78198b6f4804c
Signed-off-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-on: https://review.whamcloud.com/31671
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: James Nunez <james.a.nunez@intel.com>
(cherry picked from commit e3bc6e681666aa2c60ada5f997966efa31fae68c)
Reviewed-on: https://review.whamcloud.com/33053
Reviewed-by: Wei Liu <sarah@whamcloud.com>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>

diff --git a/lustre/tests/replay-ost-single.sh b/lustre/tests/replay-ost-single.sh
index 07ce0c3..36760bc 100755 (executable)
--- a/lustre/tests/replay-ost-single.sh
+++ b/lustre/tests/replay-ost-single.sh
@@ -159,7 +159,8 @@ test_5() {
        if (( size > GB )); then
                size=$GB
        fi
-       local iozone_opts="-i 0 -i 1 -i 2 -+d -r 4 -s $size -f $TDIR/$tfile"
+       # no random I/O (-i 2) as it's very slow with ZFS
+       local iozone_opts="-i 0 -i 1 -+d -r 4 -s $size -f $TDIR/$tfile"
 
        iozone_bg $iozone_opts &
        local pid=$!