Messages in this thread | | | Subject | Re: [PATCH v4 0/2] clocksource/drivers/dw_apb_timer: improve performance a bit | From | Daniel Lezcano <> | Date | Tue, 15 Dec 2015 21:42:05 +0100 |
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On 11/25/2015 05:01 PM, Jisheng Zhang wrote: > These two patches try to improve the dw_apb_timer clocksource/clockevent > performance. > > These patches depend on the apbt_readl return value fix patch: > > http://lists.infradead.org/pipermail/linux-arm-kernel/2015-November/388250.html > > since v3: > - fix commit msg: we measured 4096 rounds of function call. So add this > information into commit msg to avoid confusion. > > since v2: > - only use relaxed version in critical path > - inline apbt_readl/apbt_writel > - add some performance numbers > > since v1: > - correct the wrong sentence in commit msg about writel performance on > CA9 with outer L2 cache. Thank Arnd for pointing out this in another > thread. > > > Jisheng Zhang (2): > clocksource/drivers/dw_apb_timer: Inline apbt_readl and apbt_writel > clocksource/drivers/dw_apb_timer: Use {readl|writel}_relaxed in > critical path > > drivers/clocksource/dw_apb_timer.c | 30 +++++++++++++++++++++--------- > 1 file changed, 21 insertions(+), 9 deletions(-)
Applied.
Thanks !
-- Daniel
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