Re: [PATCH bpf-next v2] selftests/bpf: Time tc_edt from its first packet with data
From: patchwork-bot+netdevbpf
Date: Tue Oct 20 2026 - 20:53:42 EST
Hello:
This patch was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:
On Mon, 19 Oct 2026 14:35:55 +0800 you wrote:
> tc_edt sends 1MB over a TCP connection that a BPF program shapes with
> EDT, and checks that the rate it measures is within 2% of the target
> rate. The transfer takes about 200ms, so the margin is about 4ms.
>
> The measurement starts before send_recv_data(), which first creates the
> sender thread and accepts the connection. On a KASAN kernel, x86_64 VM
> with 32 vCPUs, that takes 0.7ms when idle and up to 4.7ms with all
> CPUs busy, while the BPF program spreads the data over 200.08ms in the
> median. The test also fails without test_progs -j where everything runs
> slower, e.g. on s390x and with ASAN in BPF CI.
>
> [...]
Here is the summary with links:
- [bpf-next,v2] selftests/bpf: Time tc_edt from its first packet with data
https://git.kernel.org/bpf/bpf-next/c/7c3188f84b54
You are awesome, thank you!
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