Re: [PATCH 0/5 v1] Processing java JIT dumps from containers

From: Arnaldo Carvalho de Melo
Date: Mon Dec 23 2024 - 14:52:07 EST


On Fri, Dec 06, 2024 at 05:48:23PM -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
>
> Hi,
>
> This is trying to move the needle on supporting jitdump done
> from a container while perf is running from the outside, that is not
> working right now.
>
> I tried to collect as much details on what is being done in the
> commit logs to document further work that needs to be done to support
> such a scenario in a streamlined way, but what in this patchkit at least
> helped in a real case, allowing us to get 'perf annotate' to work and
> confirm suspicions.

I'm going to apply this to perf-tools-next, please holler if you
disagree.

- Arnaldo

> - Arnaldo
>
> Arnaldo Carvalho de Melo (5):
> perf config: Fix trival typo 'an' -> 'can'
> perf jitdump: Accept jitdump mmaps emitted from inside containers
> perf namespaces: Introduce nsinfo__set_in_pidns()
> perf jitdump: Fixup in_pidns member when java agent and 'perf record' are not in the same pidns
> perf namespaces: Fixup the nsinfo__in_pidns() return type, its bool
>
> tools/perf/Documentation/perf-config.txt | 2 +-
> tools/perf/util/jitdump.c | 15 ++++++++++++---
> tools/perf/util/namespaces.c | 7 ++++++-
> tools/perf/util/namespaces.h | 3 ++-
> 4 files changed, 21 insertions(+), 6 deletions(-)
>
> --
> 2.47.0