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pmlogcompress: increase default xz compression level from 0 to 3 #2413

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pmlogcompress: increase default xz compression level from 0 to 3 #2413

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8 changes: 4 additions & 4 deletions src/pmlogcompress/pmlogcompress
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Original file line number Diff line number Diff line change
Expand Up @@ -74,18 +74,18 @@ _xz_setup()
{
if [ -z "${xz_args+onetrip}" ]
then
if xz -0 --block-size=10MiB </dev/null >/dev/null 2>&1
if xz -3 --block-size=10MiB </dev/null >/dev/null 2>&1
then
# want minimal overheads, -0 is the same as --fast ...
# these options were selected after extensive analysis
# for original settings in pmlogger_daily
#
xz_args="-0 --block-size=10MiB"
elif xz -0 </dev/null >/dev/null 2>&1
xz_args="-3 --block-size=10MiB"
elif xz -3 </dev/null >/dev/null 2>&1
then
# no --block-size in older versions of xz
#
xz_args="-0"
xz_args="-3"
else
xz_args=''
fi
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