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vm/test_vmalloc.sh: adapt for updated driver interface 

A 'single_cpu_test' parameter is odd and it does not exist anymore.
Instead there was introduced a 'nr_threads' one.  If it is not set it
behaves as the former parameter.

That is why update a "stress mode" according to this change specifying
number of workers which are equal to number of CPUs.  Also update an
output of help message based on a new interface.

Link: https://lkml.kernel.org/r/20210402202237.20334-3-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oleksiy Avramchenko <oleksiy.avramchenko@sonymobile.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Uladzislau Rezki (Sony) 2021-04-29 22:59:16 -07:00 committed by Linus Torvalds
parent 80f4759964
commit 7bc4ca3ea9
1 changed files with 11 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
tools/testing/selftests/vm/test_vmalloc.sh
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@ -11,6 +11,7 @@
TEST_NAME="vmalloc"
DRIVER="test_${TEST_NAME}"
NUM_CPUS=`grep -c ^processor /proc/cpuinfo`
# 1 if fails
exitcode=1
@ -22,9 +23,9 @@ ksft_skip=4
# Static templates for performance, stressing and smoke tests.
# Also it is possible to pass any supported parameters manualy.
#
PERF_PARAM="single_cpu_test=1 sequential_test_order=1 test_repeat_count=3"
SMOKE_PARAM="single_cpu_test=1 test_loop_count=10000 test_repeat_count=10"
STRESS_PARAM="test_repeat_count=20"
PERF_PARAM="sequential_test_order=1 test_repeat_count=3"
SMOKE_PARAM="test_loop_count=10000 test_repeat_count=10"
STRESS_PARAM="nr_threads=$NUM_CPUS test_repeat_count=20"
check_test_requirements()
{
@ -58,8 +59,8 @@ run_perfformance_check()
run_stability_check()
{
echo "Run stability tests. In order to stress vmalloc subsystem we run"
echo "all available test cases on all available CPUs simultaneously."
echo "Run stability tests. In order to stress vmalloc subsystem all"
echo "available test cases are run by NUM_CPUS workers simultaneously."
echo "It will take time, so be patient."
modprobe $DRIVER $STRESS_PARAM > /dev/null 2>&1
@ -92,17 +93,17 @@ usage()
echo "# Shows help message"
echo "./${DRIVER}.sh"
echo
echo "# Runs 1 test(id_1), repeats it 5 times on all online CPUs"
echo "./${DRIVER}.sh run_test_mask=1 test_repeat_count=5"
echo "# Runs 1 test(id_1), repeats it 5 times by NUM_CPUS workers"
echo "./${DRIVER}.sh nr_threads=$NUM_CPUS run_test_mask=1 test_repeat_count=5"
echo
echo -n "# Runs 4 tests(id_1|id_2|id_4|id_16) on one CPU with "
echo "sequential order"
echo -n "./${DRIVER}.sh single_cpu_test=1 sequential_test_order=1 "
echo -n "./${DRIVER}.sh sequential_test_order=1 "
echo "run_test_mask=23"
echo
echo -n "# Runs all tests on all online CPUs, shuffled order, repeats "
echo -n "# Runs all tests by NUM_CPUS workers, shuffled order, repeats "
echo "20 times"
echo "./${DRIVER}.sh test_repeat_count=20"
echo "./${DRIVER}.sh nr_threads=$NUM_CPUS test_repeat_count=20"
echo
echo "# Performance analysis"
echo "./${DRIVER}.sh performance"