lkml.org 
[lkml]   [2013]   [May]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v5 7/7] sched: consider runnable load average in effective_load
On Mon, May 6, 2013 at 2:35 AM, Alex Shi <alex.shi@intel.com> wrote:
> On 05/06/2013 05:06 PM, Paul Turner wrote:
>> I don't think this is a good idea:
>>
>> The problem with not using the instantaneous weight here is that you
>> potentially penalize the latency of interactive tasks (similarly,
>> potentially important background threads -- e.g. garbage collection).
>>
>> Counter-intuitively we actually want such tasks on the least loaded
>> cpus to minimize their latency. If the load they contribute ever
>> becomes more substantial we trust that periodic balance will start
>> taking notice of them.
>
> Sounds reasonable. Many thanks for your input, Paul!
>
> So, will use the seconds try. :)

Sorry -- not sure what you mean here. I'm suggesting leaving
effective_load() unchanged.
>>
>> [ This is similar to why we have to use the instantaneous weight in
>> calc_cfs_shares. ]
>>
>
>
> --
> Thanks
> Alex


\
 
 \ /
  Last update: 2013-05-06 12:41    [W:0.106 / U:0.176 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site