linux-kernel - Re: [PATCH v2] bpf/verifier: implement slab cache for verifier state list

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Message-Id: <20260118094636.105625-1-realwujing@gmail.com>
Date: Sun, 18 Jan 2026 17:46:36 +0800
From: Qiliang Yuan <realwujing@...il.com>
To: menglong.dong@...ux.dev
Cc: alexei.starovoitov@...il.com,
	andrii@...nel.org,
	ast@...nel.org,
	bpf@...r.kernel.org,
	daniel@...earbox.net,
	eddyz87@...il.com,
	haoluo@...gle.com,
	john.fastabend@...il.com,
	jolsa@...nel.org,
	kpsingh@...nel.org,
	linux-kernel@...r.kernel.org,
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	realwujing@...il.com,
	realwujing@...com,
	sdf@...ichev.me,
	song@...nel.org,
	yonghong.song@...ux.dev,
	yuanql9@...natelecom.cn
Subject: Re: [PATCH v2] bpf/verifier: implement slab cache for verifier state list

On Sat, Jan 17, 2026 at 7:27 PM, Menglong Dong <menglong.dong@...ux.dev> wrote:
>You can put the link of your previous version to the change log. I
>suspect the patchwork can't even detect this new version if you send
>it as a reply.

That's because I used another username and email address before.

>You introduce the slab cache to speed up the verifier, so I think we need
>a comparison, such as how long a complex BPF program can take in
>the verifier. If it is no more than 1ms, then I think it doesn't make much
>sense to obtain the 5% speeding up. After all, it's not a BPF runtime
>overhead.

However, this patch can accelerate the bpf verifier, and the same idea we can use to 
accelerate the bpf runtime.

>I think we don't do it this way, and it makes the patch look a mess. You can
>reply directly in the mail.

You can see the guide of --- from this url:
https://www.kernel.org/doc/html/latest/process/submitting-patches.html#commentary

Best regards,
Qiliang