From: Steven Rostedt <rostedt@goodmis.org>
To: Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com>
Cc: bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
andrii@kernel.org, jolsa@kernel.org,
linux-trace-kernel@vger.kernel.org,
linux-open-source@crowdstrike.com
Subject: Re: [External] Re: [RFC PATCH bpf-next 2/3] ftrace: Use kallsyms binary search for single-symbol lookup
Date: Tue, 24 Mar 2026 17:03:03 -0400 [thread overview]
Message-ID: <20260324170303.06ec4231@gandalf.local.home> (raw)
In-Reply-To: <CAOu3gNiHGBEP2oU07fY73=qOBzLJou+_wUY-6txhrnvRo84pAg@mail.gmail.com>
On Wed, 25 Feb 2026 20:22:50 -0500
Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com> wrote:
> On Wed, Feb 25, 2026 at 6:32 PM Steven Rostedt <rostedt@goodmis.org> wrote:
> >
> > On Wed, 25 Feb 2026 10:25:04 -0500
> > Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com> wrote:
> >
> > > Hey Steve, are there any extra steps required on my side to make this go
> > > through your tree?
> >
> > I see you Cc'd linux-trace-kernel which places it into the tracing
> > patchwork. If there's no dependency on any other patch, I can add it to
> > my 7.1 queue. That is, after I get some more time to review it a little
> > deeper.
> >
> > -- Steve
>
> There are no dependencies, I performed the original optimization in libbpf
> (patch 1) in hopes this will make session kprobes faster then legacy
> kprobe/kretprobe pairs and when it didn't, I dug deeper and came up
> with this second optimization here (patch 2).
>
> Let me know of any issues once you have time to review, in the meantime
> I will roll V2 with all the fixes per Jiri's comments including this patch.
Sorry for the late reply:
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
-- Steve
next prev parent reply other threads:[~2026-03-24 21:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-23 21:51 [RFC PATCH bpf-next 0/3] Optimize kprobe.session attachment for exact match Andrey Grodzovsky
2026-02-23 21:51 ` [RFC PATCH bpf-next 1/3] libbpf: Optimize kprobe.session attachment for exact function names Andrey Grodzovsky
2026-02-24 13:10 ` Jiri Olsa
2026-02-23 21:51 ` [RFC PATCH bpf-next 2/3] ftrace: Use kallsyms binary search for single-symbol lookup Andrey Grodzovsky
2026-02-24 13:12 ` Jiri Olsa
2026-02-25 11:47 ` Steven Rostedt
2026-02-25 15:25 ` [External] " Andrey Grodzovsky
2026-02-25 23:32 ` Steven Rostedt
2026-02-26 1:22 ` Andrey Grodzovsky
2026-03-24 21:03 ` Steven Rostedt [this message]
2026-02-23 21:51 ` [RFC PATCH bpf-next 3/3] selftests/bpf: add tests for kprobe.session optimization Andrey Grodzovsky
2026-02-24 13:12 ` Jiri Olsa
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