Re: [PATCH perf-tools-next] perf list: Avoid repeated strlen when escaping JSON strings
flat view
From: Arnaldo Carvalho de Melo <acme@kernel.org>
Date: 2026-09-13 21:45:40
Also in:
lkml
On Thu, Sep 10, 2026 at 09:38:39PM +0900, Qerogram wrote:
The %S conversion in fix_escape_fprintf() calls strlen(s) in the loop condition while escaping each character. GCC 14.2.0 retains this call inside the loop in a normal DEBUG=0 (-O3) perf build, repeatedly scanning the whole string.
Thanks, applied to perf-tools-next, for v7.4. - Arnaldo