From: Herbert Poetzl <herbert@13thfloor.at>
To: Pavel Emelyanov <xemul@openvz.org>
Cc: vatsa@in.ibm.com, Bharata B Rao <bharata@linux.vnet.ibm.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org,
Dhaval Giani <dhaval@linux.vnet.ibm.com>,
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
Gautham R Shenoy <ego@in.ibm.com>, Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Avi Kivity <avi@redhat.com>, Chris Friesen <cfriesen@nortel.com>,
Paul Menage <menage@google.com>,
Mike Waychison <mikew@google.com>
Subject: Re: [RFC v2 PATCH 0/8] CFS Hard limits - v2
Date: Wed, 14 Oct 2009 00:02:22 +0200 [thread overview]
Message-ID: <20091013220221.GH24787@MAIL.13thfloor.at> (raw)
In-Reply-To: <4AD4705D.6020109@openvz.org>
On Tue, Oct 13, 2009 at 04:19:41PM +0400, Pavel Emelyanov wrote:
> > as I already stated, it seems perfectly fine for me
>
> You're not the only one interested in it, sorry. Besides, I
> got your point in "I'm find with it". Now get mine which is
> about "I am not".
> > can be trivially mapped to the two values, by chosing a
> > fixed multiplicative base (let's say '1s' to simplify :)
> > with 50%, you get 1s/0.5s
> > with 20%, you get 1s/0.2s
> > with 5%, you get 1s/0.05s
> > well, you get the idea :)
> No I don't.
> Is 1s/0.5s worse or better than 2s/1s?
> How should I make a choice?
and because _you_ are unable to make a choice, you
want that choice to be removed alltogether?
don't you see that your suggestions are less powerful
than the one provided by the patch, mainly because
they are only a subset (depending on your choice)
besides that, it _is_ trivial to map the percentage,
but it isn't trivial to 'guess' what the user wants
(i.e. the amount of interactivity)
best,
Herbert
next prev parent reply other threads:[~2009-10-13 22:03 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-30 12:49 Bharata B Rao
2009-09-30 12:50 ` [RFC v2 PATCH 1/8] sched: Rename sched_rt_period_mask() and use it in CFS also Bharata B Rao
2009-09-30 12:51 ` [RFC v2 PATCH 2/8] sched: Maintain aggregated tasks count in cfs_rq at each hierarchy level Bharata B Rao
2009-10-13 14:27 ` Peter Zijlstra
2009-10-14 3:42 ` Bharata B Rao
2009-09-30 12:52 ` [RFC v2 PATCH 3/8] sched: Bandwidth initialization for fair task groups Bharata B Rao
2009-10-13 14:27 ` Peter Zijlstra
2009-10-14 3:49 ` Bharata B Rao
2009-09-30 12:52 ` [RFC v2 PATCH 4/8] sched: Enforce hard limits by throttling Bharata B Rao
2009-10-13 14:27 ` Peter Zijlstra
2009-10-14 3:41 ` Bharata B Rao
2009-10-14 9:17 ` Peter Zijlstra
2009-10-14 11:50 ` Bharata B Rao
2009-10-14 13:18 ` Herbert Poetzl
2009-10-15 3:30 ` Bharata B Rao
2009-09-30 12:53 ` [RFC v2 PATCH 5/8] sched: Unthrottle the throttled tasks Bharata B Rao
2009-09-30 12:54 ` [RFC v2 PATCH 6/8] sched: Add throttle time statistics to /proc/sched_debug Bharata B Rao
2009-09-30 12:55 ` [RFC v2 PATCH 7/8] sched: Rebalance cfs runtimes Bharata B Rao
2009-09-30 12:55 ` [RFC v2 PATCH 8/8] sched: Hard limits documentation Bharata B Rao
2009-09-30 13:36 ` [RFC v2 PATCH 0/8] CFS Hard limits - v2 Pavel Emelyanov
2009-09-30 14:25 ` Bharata B Rao
2009-09-30 14:39 ` Srivatsa Vaddagiri
2009-09-30 15:09 ` Pavel Emelyanov
2009-10-13 11:39 ` Pavel Emelyanov
2009-10-13 12:03 ` Herbert Poetzl
2009-10-13 12:19 ` Pavel Emelyanov
2009-10-13 12:30 ` Dhaval Giani
2009-10-13 12:45 ` Pavel Emelyanov
2009-10-13 12:56 ` Dhaval Giani
2009-10-13 12:57 ` Bharata B Rao
2009-10-13 13:01 ` Pavel Emelyanov
2009-10-13 14:56 ` Valdis.Kletnieks
2009-10-13 22:02 ` Herbert Poetzl [this message]
2009-10-13 14:49 ` Valdis.Kletnieks
2009-09-30 14:38 ` Balbir Singh
2009-09-30 15:10 ` Pavel Emelyanov
2009-09-30 15:30 ` Balbir Singh
2009-09-30 22:30 ` Herbert Poetzl
2009-10-01 5:12 ` Bharata B Rao
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