From: Peter Zijlstra <peterz@infradead.org>
To: Paul Turner <pjt@kernel.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] sched/fair: Fix fixed point arithmetic width for shares and effective load
Date: Tue, 23 Aug 2016 22:55:02 +0200 [thread overview]
Message-ID: <20160823205502.GX10153@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <CAPM31RJ_kcVs1JRyq8CR08JkJbSP0JGDpr_=_PXwHTPfEWuhug@mail.gmail.com>
On Tue, Aug 23, 2016 at 01:40:01PM -0700, Paul Turner wrote:
> Independent of this patch:
> When we initially introduced load scaling, it was ~uniform on every
> value. Most of the current pain has come from, and will continue to
> come from, that with v2 of the load-tracking this is no longer the
> case. We have a massive number of scaled and unscaled inputs floating
> around, many of them derived values (e.g. source_load above) which
> require chasing.
>
> I propose we simplify this.
Yes please... I had been thinking of trying to use sparse to give the
different FP scales different types, but gave up real quick on that.
next prev parent reply other threads:[~2016-08-23 20:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-23 20:40 Paul Turner
2016-08-23 20:55 ` Peter Zijlstra [this message]
2016-08-24 10:40 ` Dietmar Eggemann
-- strict thread matches above, loose matches on Subject: below --
2016-08-22 14:00 Dietmar Eggemann
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