Commit 7bc4ca3e authored by Uladzislau Rezki (Sony)'s avatar Uladzislau Rezki (Sony) Committed by Linus Torvalds
Browse files

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: default avatarUladzislau 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 80f47599

tools/testing/selftests/vm/test_vmalloc.sh

+11 −10
Original line number Diff line number Diff line
@@ -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"