From: Peter Zijlstra <peterz@infradead.org>
To: Roman Gushchin <klamm@yandex-team.ru>
Cc: LKML <linux-kernel@vger.kernel.org>,
"mingo@redhat.com" <mingo@redhat.com>,
"tkhai@yandex.ru" <tkhai@yandex.ru>
Subject: Re: Real-time scheduling policies and hyper-threading
Date: Fri, 25 Apr 2014 17:11:16 +0200 [thread overview]
Message-ID: <20140425151116.GJ11096@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <34791398438136@webcorp2g.yandex-team.ru>
On Fri, Apr 25, 2014 at 07:02:16PM +0400, Roman Gushchin wrote:
> Hm. What I really want (and try to implement), is
> "work as if ht is disabled if there are free physical cores, start using ht siblings otherwise".
At which point I have to ask, what about the rest of the topology?
Also, how is a task to know if its the 16th or 17th and thus should
expect worse latency?
> It's a 32-thread processor with 16 physical cores.
No NUMA? I'm not aware of single node systems with 16 cores.
next prev parent reply other threads:[~2014-04-25 15:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-24 18:16 Roman Gushchin
2014-04-24 18:58 ` Peter Zijlstra
2014-04-24 20:16 ` Kirill Tkhai
2014-04-24 20:24 ` Peter Zijlstra
2014-04-25 11:12 ` Roman Gushchin
2014-04-25 11:04 ` Roman Gushchin
2014-04-25 13:16 ` Peter Zijlstra
2014-04-25 15:02 ` Roman Gushchin
2014-04-25 15:11 ` Peter Zijlstra [this message]
2014-04-25 16:19 ` Roman Gushchin
2014-04-25 15:16 ` Peter Zijlstra
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