On 10/21/24 2:21 PM, Puranjay Mohan wrote:
Add a microbenchmark for bpf_csum_diff() helper. This benchmark works by filling a 4KB buffer with random data and calculating the internet checksum on different parts of this buffer using bpf_csum_diff(). Example run using ./benchs/run_bench_csum_diff.sh on x86_64: [bpf]$ ./benchs/run_bench_csum_diff.sh 4 2.296 ± 0.066M/s (drops 0.000 ± 0.000M/s) 8 2.320 ± 0.003M/s (drops 0.000 ± 0.000M/s) 16 2.315 ± 0.001M/s (drops 0.000 ± 0.000M/s) 20 2.318 ± 0.001M/s (drops 0.000 ± 0.000M/s) 32 2.308 ± 0.003M/s (drops 0.000 ± 0.000M/s) 40 2.300 ± 0.029M/s (drops 0.000 ± 0.000M/s) 64 2.286 ± 0.001M/s (drops 0.000 ± 0.000M/s) 128 2.250 ± 0.001M/s (drops 0.000 ± 0.000M/s) 256 2.173 ± 0.001M/s (drops 0.000 ± 0.000M/s) 512 2.023 ± 0.055M/s (drops 0.000 ± 0.000M/s) Signed-off-by: Puranjay Mohan <puranjay@xxxxxxxxxx>
Acked-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
