Thread (45 messages) 45 messages, 5 authors, 2024-07-27

Re: [PATCH v2 00/11] perf/uprobe: Optimize uprobes

From: Peter Zijlstra <peterz@infradead.org>
Date: 2024-07-12 09:13:29
Also in: lkml

On Thu, Jul 11, 2024 at 09:57:44PM -0700, Andrii Nakryiko wrote:
You should only need not-too-old Clang to build everything (Clang 12+
should work, I believe). But do let me know if you run into troubles.
A quick look at the thing shows me it's full of BPF gunk :/

Which means, I probably also need a kernel with BPF and BTF and all that
other gunk on -- which I don't have on any of my machines.

Esp. the BTF stuff is a force kill on all my builds as it completely
destroys build times.
But then I also ran it on Linux built from perf/uprobes branch (these
patches), and after a few seconds I see that there is no more
attachment/detachment happening. Eventually I got splats, which you
can see in [1]. I used `sudo ./uprobe-stress -a10 -t5 -m5 -f3` command
to run it inside my QEMU image.
OK, I'll see if I can make it work.
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