From: "Steinar H. Gunderson" <sesse@google.com>
To: acme@kernel.org
Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
irogers@google.com
Subject: Re: [PATCH v2] Add a trie to map quickly from address range to compilation unit.
Date: Sat, 18 May 2024 18:54:26 +0200 [thread overview]
Message-ID: <ZkjdQqN1dPsZDDRA@google.com> (raw)
In-Reply-To: <20240518165315.3963142-1-sesse@google.com>
On Sat, May 18, 2024 at 06:53:11PM +0200, Steinar H. Gunderson wrote:
> When using perf to profile large binaries, _bfd_dwarf2_find_nearest_line()
> becomes a hotspot, as perf wants to get line number information
> (for inline-detection purposes) for each and every sample. In Chromium
> in particular (the content_shell binary), this entails going through
> 475k address ranges, which takes a long time when done repeatedly.
I accidentally sent out an ancient patch anew; sorry, please ignore.
/* Steinar */
next prev parent reply other threads:[~2024-05-18 16:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-18 16:53 [PATCH v2] Add a trie to map quickly from address range to compilation unit Steinar H. Gunderson
2024-05-18 16:54 ` Steinar H. Gunderson [this message]
2024-05-19 15:50 ` Ian Rogers
2024-05-19 20:58 ` Steinar H. Gunderson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZkjdQqN1dPsZDDRA@google.com \
--to=sesse@google.com \
--cc=acme@kernel.org \
--cc=irogers@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.