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scripts/blockdev-perftest: works now on RHEL 5 / switched from sync to psync

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(merged r2394 and 2741 from trunk).


git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/2.0.0.x@3381 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2011-04-13 16:06:41 +00:00
parent cdf86b4b16
commit cf857cdcac
1 changed files with 16 additions and 11 deletions
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27
scripts/blockdev-perftest
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@@ -73,6 +73,9 @@ drop_caches() {
# provided.
set_frequency_scaling() {
local syscpu=/sys/devices/system/cpu
if [ ! -e $syscpu/cpufreq ]; then
return
fi
local governor=$(<$syscpu/cpu0/cpufreq/scaling_governor)
local cpuinfo_min_freq=$(<$syscpu/cpu0/cpufreq/cpuinfo_min_freq)
local cpuinfo_max_freq=$(<$syscpu/cpu0/cpufreq/cpuinfo_max_freq)
@@ -104,7 +107,7 @@ time_write() {
else
fio_flags="--direct=0 --end_fsync=1"
fi
fio --rw=write --filename="${device}" --bs=$1 --size=$(($1*$2)) --ioengine=sync --end_fsync=1 --invalidate=1 ${fio_flags} --name=writeperftest \
fio --rw=write --filename="${device}" --bs=$1 --size=$(($1*$2)) --ioengine=psync --end_fsync=1 --invalidate=1 ${fio_flags} --name=writeperftest \
| sed -n 's/.*runt= *\([0-9]*\)msec.*/\1/p' \
| awk '{print $1/1000}'
else
@@ -115,7 +118,7 @@ time_write() {
dd_oflags=""
fi
{ dd if=/dev/zero of="${device}" bs=$1 count=$2 ${dd_oflags} 2>&1; sync; } \
| sed -n -e 's/.* \([0-9.]*\) s,.*/\1/p' | sed 's/^$/0/'
| sed -n -e 's/.* \([0-9.]*\) s[econds]*,.*/\1/p' | sed 's/^$/0/'
fi
}
@@ -126,7 +129,7 @@ time_read() {
else
fio_flags="--direct=0"
fi
fio --rw=read --filename="${device}" --bs=$1 --size=$(($1*$2)) --ioengine=sync --end_fsync=1 --invalidate=1 ${fio_flags} --name=readperftest \
fio --rw=read --filename="${device}" --bs=$1 --size=$(($1*$2)) --ioengine=psync --end_fsync=1 --invalidate=1 ${fio_flags} --name=readperftest \
| sed -n 's/.*runt= *\([0-9]*\)msec.*/\1/p' \
| awk '{print $1/1000}'
else
@@ -137,7 +140,7 @@ time_read() {
dd_iflags=""
fi
dd if="${device}" of=/dev/null bs=$1 count=$2 ${dd_iflags} 2>&1 \
| sed -n -e 's/.* \([0-9.]*\) s,.*/\1/p' | sed 's/^$/0/'
| sed -n -e 's/.* \([0-9.]*\) s[econds]*,.*/\1/p' | sed 's/^$/0/'
fi
}
@@ -230,13 +233,15 @@ if ! can_drop_cache; then
fi
# Disable frequency scaling
if [ -w /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ]; then
frequency_scaling_params="$(set_frequency_scaling)"
else
echo ""
echo "WARNING: insufficient privileges to disable CPU frequency scaling"
echo "-- results will be unreliable."
echo ""
if [ -e /sys/devices/system/cpu/cpu0/cpufreq ]; then
if [ -w /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ]; then
frequency_scaling_params="$(set_frequency_scaling)"
else
echo ""
echo "WARNING: insufficient privileges to disable CPU frequency scaling"
echo "-- results will be unreliable."
echo ""
fi
fi
# Header, line 1