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From: Namhyung Kim <namhyung@kernel.org>
To: "Steinar H . Gunderson" <sesse@google.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	linux-perf-users@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Ian Rogers <irogers@google.com>
Subject: Re: [PATCH v1 0/3] Fix and improve __maps__fixup_overlap_and_insert
Date: Fri,  7 Jun 2024 10:51:31 -0700
Message-ID: <171778267657.3080367.600495538744784216.b4-ty@kernel.org>
In-Reply-To: <20240521165109.708593-1-irogers@google.com>
References: <20240521165109.708593-1-irogers@google.com>
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On Tue, 21 May 2024 09:51:06 -0700, Ian Rogers wrote:

> Fix latent unlikely bugs in __maps__fixup_overlap_and_insert.
> 
> Improve __maps__fixup_overlap_and_insert's performance 21x in the case
> of overlapping mmaps. sesse@google.com reported slowness opening
> perf.data files from chromium where the files contained a large number
> of overlapping mappings. Improve this case primarily by avoiding
> unnecessary sorting.
> 
> [...]

Applied to perf-tools-next, thanks!

Best regards,
Namhyung