From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: Joanne Koong <joannekoong@fb.com>, bpf@vger.kernel.org
Cc: andrii@kernel.org, ast@kernel.org, daniel@iogearbox.net,
kafai@fb.com, Kernel-team@fb.com,
Joanne Koong <joannekoong@fb.com>
Subject: Re: [PATCH bpf-next 3/3] selftest/bpf/benchs: add bpf_for_each benchmark
Date: Thu, 18 Nov 2021 12:18:11 +0100 [thread overview]
Message-ID: <87r1bdemq4.fsf@toke.dk> (raw)
In-Reply-To: <20211118010404.2415864-4-joannekoong@fb.com>
Joanne Koong <joannekoong@fb.com> writes:
> Add benchmark to measure the overhead of the bpf_for_each call
> for a specified number of iterations.
>
> Testing this on qemu on my dev machine on 1 thread, the data is
> as follows:
Absolute numbers from some random dev machine are not terribly useful;
others have no way of replicating your tests. A more meaningful
benchmark would need a baseline to compare to; in this case I guess that
would be a regular loop? Do you have any numbers comparing the callback
to just looping?
-Toke
next prev parent reply other threads:[~2021-11-18 11:19 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-18 1:04 [PATCH bpf-next 0/3] Add bpf_for_each helper Joanne Koong
2021-11-18 1:04 ` [PATCH bpf-next 1/3] bpf: " Joanne Koong
2021-11-18 11:11 ` Toke Høiland-Jørgensen
2021-11-18 18:03 ` Yonghong Song
2021-11-19 12:17 ` Toke Høiland-Jørgensen
2021-11-18 17:59 ` Yonghong Song
2021-11-19 2:40 ` Joanne Koong
2021-11-18 20:14 ` Andrii Nakryiko
[not found] ` <9cf25708-c878-65db-0dfd-a76e83fe9e39@fb.com>
2021-11-19 21:50 ` Joanne Koong
2021-11-18 1:04 ` [PATCH bpf-next 2/3] selftests/bpf: Add tests for bpf_for_each Joanne Koong
2021-11-18 20:23 ` Andrii Nakryiko
2021-11-18 1:04 ` [PATCH bpf-next 3/3] selftest/bpf/benchs: add bpf_for_each benchmark Joanne Koong
2021-11-18 11:18 ` Toke Høiland-Jørgensen [this message]
2021-11-18 19:55 ` Andrii Nakryiko
2021-11-19 13:04 ` Toke Høiland-Jørgensen
2021-11-19 22:50 ` Andrii Nakryiko
2021-11-22 14:27 ` Toke Høiland-Jørgensen
2021-11-18 20:00 ` Andrii Nakryiko
2021-11-18 11:14 ` [PATCH bpf-next 0/3] Add bpf_for_each helper Toke Høiland-Jørgensen
2021-11-19 2:35 ` Joanne Koong
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