Re: [PATCH perf-tools-next] perf list: Avoid repeated strlen when escaping JSON strings

Next message: Dmitry Baryshkov: "Re: [PATCH] drm/msm/dpu: clear pending peripheral flush state"
Previous message: Jonathan Cameron: "Re: [PATCH v5 02/10] iio: dac: mcp47feb02: Fix gain field initialization for active channels"
In reply to: Qerogram: "[PATCH perf-tools-next] perf list: Avoid repeated strlen when escaping JSON strings"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

From: Arnaldo Carvalho de Melo

Date: Sun Sep 13 2026 - 17:45:59 EST

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