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Make zpool.d/iostat work on FreeBSD

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There are slight differences in the iostat commands between FreeBSD and
Linux.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #9979
This commit is contained in:
Ryan Moeller 2020-02-14 11:37:40 -05:00 committed by GitHub
parent db0ad393b1
commit 0f1832106d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 8 deletions
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28
cmd/zpool/zpool.d/iostat
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@ -17,14 +17,14 @@ fi
if [ "$script" = "iostat-1s" ] ; then
# Do a single one-second sample
extra="1 1"
interval=1
# Don't show summary stats
y="-y"
brief="yes"
elif [ "$script" = "iostat-10s" ] ; then
# Do a single ten-second sample
extra="10 1"
interval=10
# Don't show summary stats
y="-y"
brief="yes"
fi
if [ -f "$VDEV_UPATH" ] ; then
@ -32,7 +32,19 @@ if [ -f "$VDEV_UPATH" ] ; then
exit
fi
out=$(eval "iostat $y -k -x $VDEV_UPATH $extra")
if [ "$(uname)" = "FreeBSD" ]; then
out=$(iostat -dKx \
${interval:+"-w $interval"} \
${interval:+"-c 1"} \
"$VDEV_UPATH" | tail -n 2)
else
out=$(iostat -kx \
${brief:+"-y"} \
${interval:+"$interval"} \
${interval:+"1"} \
"$VDEV_UPATH" | awk NF | tail -n 2)
fi
# Sample output (we want the last two lines):
#
@ -46,16 +58,16 @@ out=$(eval "iostat $y -k -x $VDEV_UPATH $extra")
#
# Get the column names
cols=$(echo "$out" | grep Device)
cols=$(echo "$out" | head -n 1)
# Get the values and tab separate them to make them cut-able.
vals="$(echo "$out" | grep -A1 Device | tail -n 1 | sed -r 's/[[:blank:]]+/\t/g')"
vals=$(echo "$out" | tail -n 1 | sed -r 's/[[:blank:]]+/\t/g')
i=0
for col in $cols ; do
i=$((i+1))
# Skip the first column since it's just the device name
if [ "$col" = "Device:" ] ; then
if [ $i -eq 1 ]; then
continue
fi