linux-kernel - RE: [PATCH v2] perf synthetic-events: save 4kb from 2 stack frames

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Message-ID: <44d864708b824179896928ad0b35b4e9@AcuMS.aculab.com>
Date:   Sat, 28 Mar 2020 11:35:18 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Ian Rogers' <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        "Namhyung Kim" <namhyung@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Stephane Eranian <eranian@...gle.com>
Subject: RE: [PATCH v2] perf synthetic-events: save 4kb from 2 stack frames

From: Ian Rogers
> Sent: 27 March 2020 17:29
> 
> Reuse an existing char buffer to avoid two PATH_MAX sized char buffers.
> Reduces stack frame sizes by 4kb.

It's userspace, it really doesn't matter.

	David

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