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test/nvme_perf: add option to enable gtod_reduce

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Optionally enable gtod_reduce for fio workload.
Results in greatly decreased latency metrics, but
improved IOPS/BW.

Change-Id: Ibe70d8e9a13a18a31e55b60b5cec7b353e2862c3
Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3379
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
This commit is contained in:
Karol Latecki 2020-07-16 16:49:30 +02:00 committed by Tomasz Zawadzki
parent 0e897f08a6
commit f4e27ffa14
2 changed files with 7 additions and 0 deletions
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4
test/nvme/perf/common.sh
View File

@ -228,6 +228,10 @@ function create_fio_config() {
log_avg_msec=$SAMPLING_INT
EOF
if $GTOD_REDUCE; then
echo "gtod_reduce=1" >> $testdir/config.fio
fi
for i in "${!cores[@]}"; do
local m=0 #Counter of disks per NUMA node
local n=0 #Counter of all disks in test

3
test/nvme/perf/run_perf.sh
View File

@ -27,6 +27,7 @@ RUNTIME=600
RAMP_TIME=30
NUMJOBS=1
REPEAT_NO=3
GTOD_REDUCE=false
SAMPLING_INT=0
FIO_BIN=$CONFIG_FIO_SOURCE_DIR/fio
TMP_RESULT_FILE=$testdir/result.json
@ -64,6 +65,7 @@ function usage() {
echo " Applicable only for fio-based tests."
echo " --repeat-no=INT How many times to repeat workload test. [default=$REPEAT_NO]"
echo " Test result will be an average of repeated test runs."
echo " --gtod-reduce Enable fio gtod_reduce option. [default=$GTOD_REDUCE]"
echo " --sampling-int=INT Value for fio log_avg_msec parameters [default=$SAMPLING_INT]"
echo " --fio-bin=PATH Path to fio binary. [default=$FIO_BIN]"
echo " Applicable only for fio-based tests."
@ -115,6 +117,7 @@ while getopts 'h-:' optchar; do
ramp-time=*) RAMP_TIME="${OPTARG#*=}" ;;
numjobs=*) NUMJOBS="${OPTARG#*=}" ;;
repeat-no=*) REPEAT_NO="${OPTARG#*=}" ;;
gtod-reduce) GTOD_REDUCE=true ;;
sampling-int=*) SAMPLING_INT="${OPTARG#*=}" ;;
fio-bin=*) FIO_BIN="${OPTARG#*=}" ;;
driver=*) PLUGIN="${OPTARG#*=}" ;;