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author | Andy Lutomirski <luto@amacapital.net> | 2014-07-30 15:29:53 -0700 |
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committer | Andy Lutomirski <luto@amacapital.net> | 2014-07-30 15:29:53 -0700 |
commit | 981e86877c3cd916949808cb3f0c4b664043cba0 (patch) | |
tree | 271e671014fdee8cd83663ed91af669aef9f55ae | |
parent | 68daae4a7fd34aa8cada8d47e1adb1c5ba4e318b (diff) | |
download | misc-tests-981e86877c3cd916949808cb3f0c4b664043cba0.tar.gz |
timing_test: Add vsyscall_time
-rw-r--r-- | timing_test.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/timing_test.cc b/timing_test.cc index b5ad60f..cf5e904 100644 --- a/timing_test.cc +++ b/timing_test.cc @@ -104,6 +104,12 @@ int main(int argc, char **argv) unsigned int ecx = 0; for (size_t i = 0; i < loops; ++i) asm volatile ("rdpmc" : "=a" (eax), "=d" (edx) : "c" (ecx)); +#ifdef __x86_64__ + } else if (!strcmp(mode, "vsyscall_time")) { + auto vsyscall_time = (long (*)(long *))0xffffffffff600400; + for (size_t i = 0; i < loops; ++i) + vsyscall_time(nullptr); +#endif } else { printf("Unknown mode %s\n", mode); return 1; |