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Reduce async_destroy_001_pos memory requirements

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The number of blocks which can be freed per TXG is controlled
by the zfs_free_max_blocks module option (defaults to 100,000).
Both speed up this test case and reduce the memory requirements
by only creating 4 TXGs worth of blocks to be freed.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #5479 
Closes #6192
This commit is contained in:
Brian Behlendorf 2017-06-06 11:30:47 -07:00 committed by GitHub
parent 6eb6073a04
commit ca8b210744
2 changed files with 5 additions and 11 deletions
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12
tests/zfs-tests/tests/functional/features/async_destroy/async_destroy_001_pos.ksh
View File

@ -46,11 +46,6 @@ TEST_FS=$TESTPOOL/async_destroy
verify_runnable "both"
# See issue: https://github.com/zfsonlinux/zfs/issues/5479
if is_kmemleak; then
log_unsupported "Test case runs slowly when kmemleak is enabled"
fi
function cleanup
{
datasetexists $TEST_FS && log_must zfs destroy $TEST_FS
@ -61,8 +56,11 @@ log_assert "async_destroy can suspend and resume traversal"
log_must zfs create -o recordsize=512 -o compression=off $TEST_FS
# Fill with 1G
log_must dd bs=1024k count=1024 if=/dev/zero of=/$TEST_FS/file
# Create enough blocks that it will take 4 TXGs to free them all.
typeset zfs_free_max_blocks=100000
typeset blocks=$((zfs_free_max_blocks * 4 * 512 / 1024 / 1024))
log_must dd bs=1024k count=$blocks if=/dev/zero of=/$TEST_FS/file
log_must zfs destroy $TEST_FS

4
tests/zfs-tests/tests/functional/features/async_destroy/setup.ksh
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@ -31,10 +31,6 @@
. $STF_SUITE/include/libtest.shlib
if is_32bit; then
log_unsupported "Test case fails on 32-bit systems"
fi
DISK=${DISKS%% *}
default_setup $DISK