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| author |   Jisheng Zhang <jszhang@marvell.com> | 2015-11-26 20:20:38 +0800 |
|---|---|---|
| committer |   Daniel Lezcano <daniel.lezcano@linaro.org> | 2015-12-16 09:44:23 +0100 |
| commit | 08e4b44852626f3549c8bd45308431d9c9e0ee6d (patch) | |
| tree | 199a125a955ce755018af169f9d1096d77d3b76d /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | clocksource/drivers/dw_apb_timer: Inline apbt_readl and apbt_writel (diff) | |
| download | linux-dev-08e4b44852626f3549c8bd45308431d9c9e0ee6d.tar.xz linux-dev-08e4b44852626f3549c8bd45308431d9c9e0ee6d.zip | |
clockevents/drivers/arm_global_timer: Use writel_relaxed in gt_compare_set
Use the relaxed version to improve performance. we measured time of
4096 rounds of gt_compare_set() spent on Marvell BG2Q:
before the patch: 3690648ns on average
after the patch: 1083023ns on average
improved by 70%!
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions