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| author | Johannes Stoelp <johannes.stoelp@gmail.com> | 2025-02-21 21:52:42 +0100 |
|---|---|---|
| committer | Johannes Stoelp <johannes.stoelp@gmail.com> | 2025-02-21 21:52:42 +0100 |
| commit | c9bfd7ea16ec63ca689734ad9dd279a8f76d88be (patch) | |
| tree | 02c71b58997285cfefbc6337354df4df5c5fc7ef /src/trace_profile/perf | |
| parent | 8167ecb83a8cc75da42a0b398c750d8f3aa4c44b (diff) | |
| download | notes-c9bfd7ea16ec63ca689734ad9dd279a8f76d88be.tar.gz notes-c9bfd7ea16ec63ca689734ad9dd279a8f76d88be.zip | |
perf: rename src folder
Diffstat (limited to 'src/trace_profile/perf')
| -rw-r--r-- | src/trace_profile/perf/Makefile | 8 | ||||
| -rw-r--r-- | src/trace_profile/perf/noploop.c | 10 |
2 files changed, 18 insertions, 0 deletions
diff --git a/src/trace_profile/perf/Makefile b/src/trace_profile/perf/Makefile new file mode 100644 index 0000000..7e887b8 --- /dev/null +++ b/src/trace_profile/perf/Makefile @@ -0,0 +1,8 @@ +ipc: noploop + perf stat -e cycles,instructions -- ./noploop + +noploop: + $(CC) -o noploop noploop.c + +clean: + $(RM) noploop diff --git a/src/trace_profile/perf/noploop.c b/src/trace_profile/perf/noploop.c new file mode 100644 index 0000000..76e664f --- /dev/null +++ b/src/trace_profile/perf/noploop.c @@ -0,0 +1,10 @@ +#define NOP4 "nop\nnop\nnop\nnop\n" +#define NOP32 NOP4 NOP4 NOP4 NOP4 NOP4 NOP4 NOP4 NOP4 +#define NOP256 NOP32 NOP32 NOP32 NOP32 NOP32 NOP32 NOP32 NOP32 +#define NOP2048 NOP256 NOP256 NOP256 NOP256 NOP256 NOP256 NOP256 NOP256 + +int main() { + for (unsigned i = 0; i < 2000000; ++i) { + asm volatile(NOP2048); + } +} |