Hello. As an outcome of https://lkml.org/lkml/2018/10/19/786 discussion there was an interest in stress/performance test suite. It was developed to analyse a vmalloc allocator from performance, stability point of view and compare the new approach with current one. I have explained in the commit message in detail how to use this test driver, so please have look at: vmalloc: add test driver to analyse vmalloc allocator I think it is pretty easy and handy to use. I am not sure if i need to create kind of run.sh or vmalloc.sh in tools/testing/selftests/ to configure the test module over misc device or so to apply different configurations and trigger the test. This driver uses one internal function that is not accessible from the kernel module, thus as a workaround i use kallsyms_lookup_name("__vmalloc_node_range") to find the symbol. Also, i need to mention one thing here this test suite allowed me to identify some issues in current design. So please refer to the link i pointed above. Uladzislau Rezki (Sony) (1): vmalloc: add test driver to analyse vmalloc allocator lib/Kconfig.debug | 12 ++ lib/Makefile | 1 + lib/test_vmalloc.c | 543 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 556 insertions(+) create mode 100644 lib/test_vmalloc.c -- 2.11.0
