Re: [PATCH v2] selftests/amd-pstate: Fix broken paths to run workloads in amd-pstate-ut
From: Mario Limonciello
Date: Fri Sep 22 2023 - 18:22:51 EST
On 9/19/2023 05:33, Swapnil Sapkal wrote:
In selftests/amd-pstate, tbench and gitsource microbenchmarks are used to
compare the performance with different governors. In Current
implementation relative path to run `amd_pstate_tracer.py`
broken. Fixed this by using absolute paths.
Also selftests/amd-pstate uses distro `perf` to capture stats while running
these microbenchmarks. Distro `perf` is not working with upstream
kernel. Fixed this by providing an option to give the perf binary path.
This should be multiple separate patches, at least two.
Signed-off-by: Swapnil Sapkal <swapnil.sapkal@xxxxxxx>
---
.../x86/amd_pstate_tracer/amd_pstate_trace.py | 2 +-
.../testing/selftests/amd-pstate/gitsource.sh | 14 +++++++-----
tools/testing/selftests/amd-pstate/run.sh | 22 +++++++++++++------
tools/testing/selftests/amd-pstate/tbench.sh | 4 ++--
4 files changed, 27 insertions(+), 15 deletions(-)
diff --git a/tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py b/tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py
index 904df0ea0a1e..2448bb07973f 100755
--- a/tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py
+++ b/tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py
@@ -30,7 +30,7 @@ import getopt
import Gnuplot
from numpy import *
from decimal import *
-sys.path.append('../intel_pstate_tracer')
+sys.path.append(os.path.join(os.path.dirname(__file__), '../intel_pstate_tracer'))
#import intel_pstate_tracer
import intel_pstate_tracer as ipt
diff --git a/tools/testing/selftests/amd-pstate/gitsource.sh b/tools/testing/selftests/amd-pstate/gitsource.sh
index 5f2171f0116d..c327444d3506 100755
--- a/tools/testing/selftests/amd-pstate/gitsource.sh
+++ b/tools/testing/selftests/amd-pstate/gitsource.sh
@@ -66,12 +66,15 @@ post_clear_gitsource()
install_gitsource()
{
- if [ ! -d $git_name ]; then
+ if [ ! -d $SCRIPTDIR/$git_name ]; then
+ BACKUP_DIR=$(pwd)
+ cd $SCRIPTDIR
printf "Download gitsource, please wait a moment ...\n\n"
wget -O $git_tar $gitsource_url > /dev/null 2>&1
printf "Tar gitsource ...\n\n"
tar -xzf $git_tar
+ cd $BACKUP_DIR
fi
}
@@ -79,12 +82,13 @@ install_gitsource()
run_gitsource()
{
echo "Launching amd pstate tracer for $1 #$2 tracer_interval: $TRACER_INTERVAL"
- ./amd_pstate_trace.py -n tracer-gitsource-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
+ $SCRIPTDIR/../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py -n tracer-gitsource-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
printf "Make and test gitsource for $1 #$2 make_cpus: $MAKE_CPUS\n"
- cd $git_name
- perf stat -a --per-socket -I 1000 -e power/energy-pkg/ /usr/bin/time -o ../$OUTFILE_GIT.time-gitsource-$1-$2.log make test -j$MAKE_CPUS > ../$OUTFILE_GIT-perf-$1-$2.log 2>&1
- cd ..
+ BACKUP_DIR=$(pwd)
+ cd $SCRIPTDIR/$git_name
+ $PERF stat -a --per-socket -I 1000 -e power/energy-pkg/ /usr/bin/time -o $BACKUP_DIR/$OUTFILE_GIT.time-gitsource-$1-$2.log make test -j$MAKE_CPUS > $BACKUP_DIR/$OUTFILE_GIT-perf-$1-$2.log 2>&1
+ cd $BACKUP_DIR
for job in `jobs -p`
do
diff --git a/tools/testing/selftests/amd-pstate/run.sh b/tools/testing/selftests/amd-pstate/run.sh
index de4d8e9c9565..0803e70b04da 100755
--- a/tools/testing/selftests/amd-pstate/run.sh
+++ b/tools/testing/selftests/amd-pstate/run.sh
@@ -8,9 +8,11 @@ else
FILE_MAIN=DONE
fi
-source basic.sh
-source tbench.sh
-source gitsource.sh
+SCRIPTDIR=`dirname "$0"`
+
+source $SCRIPTDIR/basic.sh
+source $SCRIPTDIR/tbench.sh
+source $SCRIPTDIR/gitsource.sh
Rather than hardcoding
$SCRIPTDIR/../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py in
multiple places, how about you delcare a new variable here?
TRACER=$SCRIPTDIR/../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py
Then all the commands can be called with $TRACER instead.
Furthermore if there needs to be flexibility for multiple calling paths
in the future (say in tree vs in filessytem) then you can easily add
another case right here that is:
if [ ! -f $TRACER ]; then
TRACER=foo/bar/baz
fi
# amd-pstate-ut only run on x86/x86_64 AMD systems.
ARCH=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
@@ -22,6 +24,7 @@ OUTFILE=selftest
OUTFILE_TBENCH="$OUTFILE.tbench"
OUTFILE_GIT="$OUTFILE.gitsource"
+PERF=/usr/bin/perf
SYSFS=
CPUROOT=
CPUFREQROOT=
@@ -149,8 +152,9 @@ help()
gitsource: Gitsource testing.>]
[-t <tbench time limit>]
[-p <tbench process number>]
- [-l <loop times for tbench>]
+ [-l <loop times for tbench/gitsource>]
[-i <amd tracer interval>]
+ [-b <perf binary>]
[-m <comparative test: acpi-cpufreq>]
\n"
exit 2
@@ -158,7 +162,7 @@ help()
parse_arguments()
{
- while getopts ho:c:t:p:l:i:m: arg
+ while getopts ho:c:t:p:l:i:b:m: arg
do
case $arg in
h) # --help
@@ -189,6 +193,10 @@ parse_arguments()
TRACER_INTERVAL=$OPTARG
;;
+ b) # --perf-binary
+ PERF=`realpath $OPTARG`
+ ;;
+
m) # --comparative-test
COMPARATIVE_TEST=$OPTARG
;;
@@ -202,8 +210,8 @@ parse_arguments()
command_perf()
{
- if ! command -v perf > /dev/null; then
- echo $msg please install perf. >&2
+ if ! $PERF -v; then
+ echo $msg please install perf or provide perf binary path as argument >&2
exit $ksft_skip
fi
}
diff --git a/tools/testing/selftests/amd-pstate/tbench.sh b/tools/testing/selftests/amd-pstate/tbench.sh
index 49c9850341f6..70e5863e74ea 100755
--- a/tools/testing/selftests/amd-pstate/tbench.sh
+++ b/tools/testing/selftests/amd-pstate/tbench.sh
@@ -64,11 +64,11 @@ post_clear_tbench()
run_tbench()
{
echo "Launching amd pstate tracer for $1 #$2 tracer_interval: $TRACER_INTERVAL"
- ./amd_pstate_trace.py -n tracer-tbench-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
+ $SCRIPTDIR/../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py -n tracer-tbench-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
printf "Test tbench for $1 #$2 time_limit: $TIME_LIMIT procs_num: $PROCESS_NUM\n"
tbench_srv > /dev/null 2>&1 &
- perf stat -a --per-socket -I 1000 -e power/energy-pkg/ tbench -t $TIME_LIMIT $PROCESS_NUM > $OUTFILE_TBENCH-perf-$1-$2.log 2>&1
+ $PERF stat -a --per-socket -I 1000 -e power/energy-pkg/ tbench -t $TIME_LIMIT $PROCESS_NUM > $OUTFILE_TBENCH-perf-$1-$2.log 2>&1
pid=`pidof tbench_srv`
kill $pid