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Date: Thu, 06 Mar 2014 14:39:39 -0500 From: Rik van Riel <riel@...hat.com> To: Frederic Weisbecker <fweisbec@...il.com>, LKML <linux-kernel@...r.kernel.org> CC: Ingo Molnar <mingo@...nel.org>, Marcelo Tosatti <mtosatti@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: [RFC PATCH 5/6] sched: Remove needless round trip nsecs <-> tick conversion of steal time On 03/06/2014 12:56 PM, Frederic Weisbecker wrote: > When update_rq_clock_task() accounts the pending steal time for a task, > it converts the steal delta from nsecs to tick then from tick to nsecs. > > There is no apparent good reason for doing that though because both > the task clock and the prev steal delta are u64 and store values > in nsecs. > > So lets remove the needless conversion. > > Cc: Ingo Molnar <mingo@...nel.org> > Cc: Marcelo Tosatti <mtosatti@...hat.com> > Cc: Peter Zijlstra <peterz@...radead.org> > Cc: Thomas Gleixner <tglx@...utronix.de> > Signed-off-by: Frederic Weisbecker <fweisbec@...il.com> Acked-by: Rik van Riel <riel@...hat.com> -- 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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