On Mon, Sep 2, 2024 at 5:09 AM Yunsheng Lin <linyunsheng@xxxxxxxxxx> wrote:
>
> The testing is done by ensuring that the fragment allocated
> from a frag_frag_cache instance is pushed into a ptr_ring
> instance in a kthread binded to a specified cpu, and a kthread
> binded to a specified cpu will pop the fragment from the
> ptr_ring and free the fragment.
>
> CC: Alexander Duyck <alexander.duyck@xxxxxxxxx>
> Signed-off-by: Yunsheng Lin <linyunsheng@xxxxxxxxxx>
> ---
> tools/testing/selftests/mm/Makefile | 3 +
> tools/testing/selftests/mm/page_frag/Makefile | 18 ++
> .../selftests/mm/page_frag/page_frag_test.c | 170 +++++++++++++++++
> tools/testing/selftests/mm/run_vmtests.sh | 8 +
> tools/testing/selftests/mm/test_page_frag.sh | 171 ++++++++++++++++++
> 5 files changed, 370 insertions(+)
> create mode 100644 tools/testing/selftests/mm/page_frag/Makefile
> create mode 100644 tools/testing/selftests/mm/page_frag/page_frag_test.c
> create mode 100755 tools/testing/selftests/mm/test_page_frag.sh
>
...
> diff --git a/tools/testing/selftests/mm/test_page_frag.sh b/tools/testing/selftests/mm/test_page_frag.sh
> new file mode 100755
> index 000000000000..d2b0734a90b5
> --- /dev/null
> +++ b/tools/testing/selftests/mm/test_page_frag.sh
> @@ -0,0 +1,171 @@
...
> +check_test_requirements()
> +{
> + uid=$(id -u)
> + if [ $uid -ne 0 ]; then
> + echo "$0: Must be run as root"
> + exit $ksft_skip
> + fi
> +
> + if ! which insmod > /dev/null 2>&1; then
> + echo "$0: You need insmod installed"
> + exit $ksft_skip
> + fi
> +
> + if [ ! -f $DRIVER ]; then
> + echo "$0: You need to compile page_frag_test module"
> + exit $ksft_skip
> + fi
> +}
> +
> +run_nonaligned_check()
> +{
> + echo "Run performance tests to evaluate how fast nonaligned alloc API is."
> +
> + insmod $DRIVER $NONALIGNED_PARAM > /dev/null 2>&1
> + echo "Done."
> + echo "Ccheck the kernel ring buffer to see the summary."
Typo, should be "Check".
> +}
> +
> +run_aligned_check()
> +{
> + echo "Run performance tests to evaluate how fast aligned alloc API is."
> +
> + insmod $DRIVER $ALIGNED_PARAM > /dev/null 2>&1
> + echo "Done."
> + echo "Check the kernel ring buffer to see the summary."
> +}
> +
Other than the one typo it looks fine to me.
Reviewed-by: Alexander Duyck <alexanderduyck@xxxxxx>
