diff options
Diffstat (limited to 'scripts/zpios-survey.sh')
| -rwxr-xr-x | scripts/zpios-survey.sh | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/scripts/zpios-survey.sh b/scripts/zpios-survey.sh deleted file mode 100755 index 78601695f..000000000 --- a/scripts/zpios-survey.sh +++ /dev/null @@ -1,187 +0,0 @@ -#!/bin/bash -# -# Wrapper script for easily running a survey of zpios based tests -# - -basedir="$(dirname $0)" - -SCRIPT_COMMON=common.sh -if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then -. "${basedir}/${SCRIPT_COMMON}" -else -echo "Missing helper script ${SCRIPT_COMMON}" && exit 1 -fi - -PROG=zpios-survey.sh - -usage() { -cat << EOF -USAGE: -$0 [hvp] <-c config> <-t test> - -DESCRIPTION: - Helper script for easy zpios survey benchmarking. - -OPTIONS: - -h Show this message - -v Verbose - -p Enable profiling - -c Zpool configuration - -t Zpios test - -l Zpios survey log - -EOF -} - -print_header() { -tee -a ${ZPIOS_SURVEY_LOG} << EOF - -================================================================ -Test: $1 -EOF -} - -# Baseline performance for an out of the box config with no manual tuning. -# Ideally, we want everything to be automatically tuned for your system and -# for this to perform reasonably well. -zpios_survey_base() { - TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+baseline" - print_header ${TEST_NAME} - - ${ZFS_SH} ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZFS_SH} -u ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} -} - -# Disable ZFS's prefetching. For some reason still not clear to me -# current prefetching policy is quite bad for a random workload. -# Allowing the algorithm to detect a random workload and not do -# anything may be the way to address this issue. -zpios_survey_prefetch() { - TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+prefetch" - print_header ${TEST_NAME} - - ${ZFS_SH} ${VERBOSE_FLAG} \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} \ - -o "--noprefetch" | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZFS_SH} -u ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} -} - -# Simulating a zerocopy IO path should improve performance by freeing up -# lots of CPU which is wasted move data between buffers. -zpios_survey_zerocopy() { - TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+zerocopy" - print_header ${TEST_NAME} - - ${ZFS_SH} ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} \ - -o "--zerocopy" | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZFS_SH} -u ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} -} - -# Disabling checksumming should show some (if small) improvement -# simply due to freeing up a modest amount of CPU. -zpios_survey_checksum() { - TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+checksum" - print_header ${TEST_NAME} - - ${ZFS_SH} ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} \ - -s "set checksum=off" | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZFS_SH} -u ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} -} - -# Increasing the pending IO depth also seems to improve things likely -# at the expense of latency. This should be explored more because I'm -# seeing a much bigger impact there that I would have expected. There -# may be some low hanging fruit to be found here. -zpios_survey_pending() { - TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+pending" - print_header ${TEST_NAME} - - ${ZFS_SH} ${VERBOSE_FLAG} \ - zfs="zfs_vdev_max_pending=1024" | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZFS_SH} -u ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} -} - -# Apply all possible turning concurrently to get a best case number -zpios_survey_all() { - TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+all" - print_header ${TEST_NAME} - - ${ZFS_SH} ${VERBOSE_FLAG} \ - zfs="zfs_vdev_max_pending=1024" | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} \ - -o "--noprefetch --zerocopy" \ - -s "set checksum=off" | \ - tee -a ${ZPIOS_SURVEY_LOG} - ${ZFS_SH} -u ${VERBOSE_FLAG} | \ - tee -a ${ZPIOS_SURVEY_LOG} -} - - -PROFILE= -ZPOOL_NAME=zpios-survey -ZPOOL_CONFIG=zpool-config.sh -ZPIOS_TEST=zpios-test.sh -ZPIOS_SURVEY_LOG=/dev/null - -while getopts 'hvpc:t:l:' OPTION; do - case $OPTION in - h) - usage - exit 1 - ;; - v) - VERBOSE=1 - VERBOSE_FLAG="-v" - ;; - p) - PROFILE=1 - PROFILE_FLAG="-p" - ;; - c) - ZPOOL_CONFIG=${OPTARG} - ;; - t) - ZPIOS_TEST=${OPTARG} - ;; - l) - ZPIOS_SURVEY_LOG=${OPTARG} - ;; - ?) - usage - exit - ;; - esac -done - -if [ $(id -u) != 0 ]; then - die "Must run as root" -fi - -zpios_survey_base -zpios_survey_prefetch -zpios_survey_zerocopy -zpios_survey_checksum -zpios_survey_pending -zpios_survey_all - -exit 0 |