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| author |   Konstantin Khlebnikov <koct9i@gmail.com> | 2016-12-14 15:08:14 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 16:04:09 -0800 |
| commit | cfa40bcfd6fed7010b1633bf127ed8571d3b607e (patch) | |
| tree | 1d51776664d8465ac4c45a22072a5c13239cf5c2 /tools/testing/radix-tree/main.c | |
| parent | radix tree test suite: iteration test misuses RCU (diff) | |
| download | linux-dev-cfa40bcfd6fed7010b1633bf127ed8571d3b607e.tar.xz linux-dev-cfa40bcfd6fed7010b1633bf127ed8571d3b607e.zip | |
radix tree test suite: benchmark for iterator
This adds simple benchmark for iterator similar to one I've used for
commit 78c1d78488a3 ("radix-tree: introduce bit-optimized iterator")
Building with make BENCHMARK=1 set radix tree order to 6, this allows to
get performance comparable to in kernel performance.
Link: http://lkml.kernel.org/r/1480369871-5271-43-git-send-email-mawilcox@linuxonhyperv.com
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/radix-tree/main.c')
| -rw-r--r-- | tools/testing/radix-tree/main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/radix-tree/main.c b/tools/testing/radix-tree/main.c index 2eb694994497..f1d1e3bd9464 100644 --- a/tools/testing/radix-tree/main.c +++ b/tools/testing/radix-tree/main.c @@ -352,6 +352,8 @@ int main(int argc, char **argv) /* Free any remaining preallocated nodes */ radix_tree_cpu_dead(0); + benchmark(); + sleep(1); printf("after sleep(1): %d allocated, preempt %d\n", nr_allocated, preempt_count); |