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Message-Id: <1337615137-55111-3-git-send-email-schwidefsky@de.ibm.com> Date: Mon, 21 May 2012 17:45:37 +0200 From: Martin Schwidefsky <schwidefsky@...ibm.com> To: Peter Zijlstra <a.p.zijlstra@...llo.nl>, Ingo Molnar <mingo@...nel.org>, Mike Galbraith <efault@....de>, linux-kernel@...r.kernel.org Cc: Heiko Carstens <heiko.carstens@...ibm.com>, Christian Ehrhardt <ehrhardt@...ux.vnet.ibm.com>, Martin Schwidefsky <schwidefsky@...ibm.com> Subject: [PATCH 2/2] sched: enable FAIR_SLEEPERS for s390 For s390 the performance benefit that comes with the ability to disable fair sleepers is more important than the saved branch on the hot path of the scheduler. Therefore enable CONFIG_SCHED_FAIR_SLEEPERS. Reported-by: Christian Ehrhardt <ehrhardt@...ux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com> --- arch/s390/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 9015060..d5746d8 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -122,6 +122,7 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_BH select ARCH_INLINE_WRITE_UNLOCK_IRQ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE + select SCHED_FAIR_SLEEPERS config SCHED_OMIT_FRAME_POINTER def_bool y -- 1.7.10.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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