Tiny, zero-dependency, header-only microbenchmarking library for C.
Includes ministat code for stats.
This example shows speed difference for getting current cpuid between using (default) vdso call and forcing the transition to kernel mode by using explicit system call instruction.
$ make clean run
rm -f *.o *.out
cc -c example-linux.c -o example.o
cc example.o -o example-benchmark.out -lm
./example-benchmark.out
===== Running microbench =====
* system: Linux 5.15.0-56-generic x86_64
* resolution: 1ns
* iterations: 25
------------------------------
======= Ministat report ======
x vdso-getcpu (default)
+ syscall-getcpu
+--------------------------------------------------------------------------+
| + |
| + |
| + |
| + |
| + |
| x + |
| x x + |
| x x + |
| x x + |
| x x + +|
| x x + +|
| x x + +|
| x x + +|
| x x + +|
| x x + +|
| x x + +|
| x x x x + +|
||____A_M_| |M_A__| |
+--------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 25 20 50 30 26.4 7.5718778
+ 25 130 140 130 133.2 4.7609523
Difference at 95.0% confidence
106.8 +/- 3.59739
404.545% +/- 13.6265%
(Student's t, pooled s = 6.32456)
$ make clean run
rm -f *.o *.out
cc -c example-darwin.c -o example.o
cc example.o -o example-benchmark.out -lm
./example-benchmark.out
===== Running microbench =====
* system: Darwin 22.1.0 arm64
* resolution: 1000ns
* iterations: 25
------------------------------
======= Ministat report ======
x loop(1000)
+ loop(10000)
+--------------------------------------------------------------------------+
|x + |
|x + +|
|x x + +|
|x x + +|
|x x + +|
|x x + +|
|x x + +|
|x x + +|
|x x + +|
|x x + +|
|x x + +|
|x x + +|
|x x + +|
|MA| MA||
+--------------------------------------------------------------------------+
N Min Max Median Avg Stddev
x 25 3000 4000 3000 3440 506.62281
+ 25 34000 35000 34000 34480 509.90195
Difference at 95.0% confidence
31040 +/- 289.099
902.326% +/- 8.40405%
(Student's t, pooled s = 508.265)
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent