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Fix for ARC sysctls ignored at runtime

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This change leverage module_param_call() to run arc_tuning_update()
immediately after the ARC tunable has been updated as suggested in
cffa8372 code review.

A simple test case is added to the ZFS Test Suite to prevent future
regressions in functionality.

Reviewed-by: Matt Macy <mmacy@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #9487  
Closes #9489
This commit is contained in:
loli10K
2019-10-27 00:22:19 +02:00
committed by Brian Behlendorf
parent 6963414d70
commit e35704647e
10 changed files with 178 additions and 42 deletions
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tests/zfs-tests/tests/perf/perf.shlib
+17
View File
@@ -373,6 +373,23 @@ function get_directory
echo $directory
}
function get_min_arc_size
{
if is_linux; then
typeset -l min_arc_size=`awk '$1 == "c_min" { print $3 }' \
/proc/spl/kstat/zfs/arcstats`
else
typeset -l min_arc_size=$(dtrace -qn 'BEGIN {
printf("%u\n", `arc_stats.arcstat_c_min.value.ui64);
exit(0);
}')
fi
[[ $? -eq 0 ]] || log_fail "get_min_arc_size failed"
echo $min_arc_size
}
function get_max_arc_size
{
if is_linux; then