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| author | David Wang <00107082@163.com> | 2024-11-30 21:49:09 +0800 |
|---|---|---|
| committer | John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> | 2025-02-01 10:42:36 +0100 |
| commit | d2a5f10bf1f123f6d9a7fb4be4cd92f6e95c129d (patch) | |
| tree | b18a635d83ed98c815513a2f802f6dc545a6a7c5 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 40384c840ea1944d7c5a392e8975ed088ecf0b37 (diff) | |
| download | linux-d2a5f10bf1f123f6d9a7fb4be4cd92f6e95c129d.tar.gz linux-d2a5f10bf1f123f6d9a7fb4be4cd92f6e95c129d.tar.bz2 linux-d2a5f10bf1f123f6d9a7fb4be4cd92f6e95c129d.zip | |
sh: irq: Use seq_put_decimal_ull_width() for decimal values
On a system with n CPUs and m interrupts, there will be n*m decimal
values yielded via seq_printf(.."%10u "..) which has significant costs
parsing format string and is less efficient than seq_put_decimal_ull_width().
Stress reading /proc/interrupts indicates ~30% performance improvement with
this patch.
Signed-off-by: David Wang <00107082@163.com>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions