From: Nick Gasson <nick.gasson@arm.com>
To: Ian Rogers <irogers@google.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Stephane Eranian <eranian@google.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] perf jvmti: remove redundant jitdump line table entries
Date: Wed, 27 May 2020 13:40:14 +0800 [thread overview]
Message-ID: <xgl9wo4ylyv5.fsf@arm.com> (raw)
In-Reply-To: <CAP-5=fU8CJzOttgVDSxqHQoRg_eZ1+sToywOiek+8vw4j2GykA@mail.gmail.com>
On 05/27/20 13:03 PM, Ian Rogers wrote:
>
> Great result, thanks! I note there is a lack of symbolization when
> benchmarking a few Java applications. I'll try to see if there's a
> sensible resolution for those.
>
I noticed it loses information when the Hotspot code cache is
resized. I've been working around that by setting
-XX:InitialCodeCacheSize and -XX:ReservedCodeCacheSize to large
values. Does this help in your case?
>
> It'd be better to make this into two patches. Also on acme's perf/core
> branch if possible:
> https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/log/?h=perf/core
OK sure, I'll do that.
--
Nick
next prev parent reply other threads:[~2020-05-27 5:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-22 6:53 [PATCH] perf jvmti: remove redundant jitdump line table entries Nick Gasson
2020-05-26 11:55 ` Jiri Olsa
2020-05-27 5:29 ` Nick Gasson
2020-05-27 12:43 ` Arnaldo Carvalho de Melo
2020-05-27 5:03 ` Ian Rogers
2020-05-27 5:40 ` Nick Gasson [this message]
2020-05-27 18:08 ` Ian Rogers
2020-05-28 4:38 ` Nick Gasson
2020-05-28 7:29 ` Ian Rogers
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