From: Daniel Borkmann <daniel@iogearbox.net>
To: Puranjay Mohan <puranjay@kernel.org>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexei Starovoitov <ast@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andrii Nakryiko <andrii@kernel.org>,
bpf@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
Eduard Zingerman <eddyz87@gmail.com>,
Eric Dumazet <edumazet@google.com>, Hao Luo <haoluo@google.com>,
Helge Deller <deller@gmx.de>, Jakub Kicinski <kuba@kernel.org>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Jiri Olsa <jolsa@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
linux-riscv@lists.infradead.org,
Martin KaFai Lau <martin.lau@linux.dev>,
Mykola Lysenko <mykolal@fb.com>,
netdev@vger.kernel.org, Palmer Dabbelt <palmer@dabbelt.com>,
Paolo Abeni <pabeni@redhat.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Puranjay Mohan <puranjay12@gmail.com>,
Shuah Khan <shuah@kernel.org>, Song Liu <song@kernel.org>,
Stanislav Fomichev <sdf@fomichev.me>,
Yonghong Song <yonghong.song@linux.dev>
Subject: Re: [PATCH bpf-next 4/5] selftests/bpf: Add benchmark for bpf_csum_diff() helper
Date: Mon, 21 Oct 2024 15:43:50 +0200 [thread overview]
Message-ID: <4ca8a746-263f-450d-af8d-64ba181a443f@iogearbox.net> (raw)
In-Reply-To: <20241021122112.101513-5-puranjay@kernel.org>
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@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
next prev parent reply other threads:[~2024-10-21 13:44 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-21 12:21 [PATCH bpf-next 0/5] Optimize bpf_csum_diff() and homogenize for all archs Puranjay Mohan
2024-10-21 12:21 ` [PATCH bpf-next 1/5] net: checksum: move from32to16() to generic header Puranjay Mohan
2024-10-21 13:41 ` Daniel Borkmann
2024-10-22 9:49 ` Toke Høiland-Jørgensen
2024-10-22 13:50 ` kernel test robot
2024-10-21 12:21 ` [PATCH bpf-next 2/5] bpf: bpf_csum_diff: optimize and homogenize for all archs Puranjay Mohan
2024-10-21 13:42 ` Daniel Borkmann
2024-10-22 9:54 ` Toke Høiland-Jørgensen
2024-10-22 18:09 ` kernel test robot
2024-10-21 12:21 ` [PATCH bpf-next 3/5] selftests/bpf: don't mask result of bpf_csum_diff() in test_verifier Puranjay Mohan
2024-10-21 13:01 ` Helge Deller
2024-10-21 13:14 ` Puranjay Mohan
2024-10-21 14:04 ` Helge Deller
2024-10-21 13:42 ` Daniel Borkmann
2024-10-22 9:55 ` Toke Høiland-Jørgensen
2024-10-21 12:21 ` [PATCH bpf-next 4/5] selftests/bpf: Add benchmark for bpf_csum_diff() helper Puranjay Mohan
2024-10-21 13:43 ` Daniel Borkmann [this message]
2024-10-21 23:28 ` Andrii Nakryiko
2024-10-22 10:21 ` Puranjay Mohan
2024-10-22 17:47 ` Andrii Nakryiko
2024-10-22 17:58 ` Puranjay Mohan
2024-10-23 15:37 ` Puranjay Mohan
2024-10-21 12:21 ` [PATCH bpf-next 5/5] selftests/bpf: Add a selftest for bpf_csum_diff() Puranjay Mohan
2024-10-21 13:44 ` Daniel Borkmann
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