Add mmap syscall benchmarks
Add benchmarks to monitor performance of the syscalls which are frequently
used in Android. These benchmarks will help Android kernel team to catch
syscall performance regressions and flagging them early. They can also
be used to compare different kernel versions.
Add mmap/munmap syscall benchmarks as a starting point. mmap and munmap
are among most frequently used syscall in Andoird. Specific parameters
were also chosen based on the frequency of their use in Android.
Bug: 283058897
Test: local build and run
Change-Id: If8e53305174532dd698706ccd20e4b800d8720d7
diff --git a/benchmarks/bionic_benchmarks.cpp b/benchmarks/bionic_benchmarks.cpp
index 74966c0..c0f956b 100644
--- a/benchmarks/bionic_benchmarks.cpp
+++ b/benchmarks/bionic_benchmarks.cpp
@@ -521,12 +521,22 @@
all_sizes.insert(all_sizes.end(), kMediumSizes.begin(), kMediumSizes.end());
all_sizes.insert(all_sizes.end(), kLargeSizes.begin(), kLargeSizes.end());
+ int page_sz = getpagesize();
+ std::vector<int> sub_page_sizes = {page_sz / 2, page_sz / 4, page_sz / 8};
+ std::vector<int> multi_page_sizes = {page_sz, page_sz * 2, page_sz * 3, page_sz * 10,
+ page_sz * 100};
+ std::vector<int> all_page_sizes(sub_page_sizes);
+ all_page_sizes.insert(all_page_sizes.end(), multi_page_sizes.begin(), multi_page_sizes.end());
+
std::map<std::string, args_vector_t> args_shorthand {
{"AT_COMMON_SIZES", GetArgs(kCommonSizes)},
{"AT_SMALL_SIZES", GetArgs(kSmallSizes)},
{"AT_MEDIUM_SIZES", GetArgs(kMediumSizes)},
{"AT_LARGE_SIZES", GetArgs(kLargeSizes)},
{"AT_ALL_SIZES", GetArgs(all_sizes)},
+ {"AT_SUB_PAGE_SIZES", GetArgs(sub_page_sizes)},
+ {"AT_MULTI_PAGE_SIZES", GetArgs(multi_page_sizes)},
+ {"AT_All_PAGE_SIZES", GetArgs(all_page_sizes)},
{"AT_ALIGNED_ONEBUF", GetArgs(kCommonSizes, 0)},
{"AT_ALIGNED_ONEBUF_SMALL", GetArgs(kSmallSizes, 0)},