Messages in this thread | | | Date | Mon, 06 May 2013 17:35:44 +0800 | From | Alex Shi <> | Subject | Re: [PATCH v5 7/7] sched: consider runnable load average in effective_load |
| |
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. :) > > [ This is similar to why we have to use the instantaneous weight in > calc_cfs_shares. ] >
-- Thanks Alex
| |