Re: [Xen-devel] [PATCH] Make credit2 the default scheduler

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 13.09.18 at 18:51, <dfaggioli@xxxxxxxx> wrote:
> On Thu, 2018-09-13 at 17:38 +0100, George Dunlap wrote:
>> Credit2 was declared "supported" in 4.8, and as of 4.10 had two other
>> critical features implemented (soft affinity / NUMA and caps).
>> 
>> [..]
>>
>> Credit2, like credit, has a number of workloads / setups for which
>> performance could be improved.  Personally I think networking and
>> partially-loaded systems is going to be more representative of what
>> Xen is actually used for; so I think credit2 is on the whole the
>> better scheduler to use by default.  And in any case, making those
>> improvements on credit2 will be easier than on credit.
>> 
>> Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxx>
>>
> After all the effort we've spent on this, I'm really, really happy to
> see this (trying to) happen. Thanks for sending the patch. :-)
> 
> I fully agree with and second George's reasoning, and feel 100% like
> providing my:
> 
> Acked-by: Dario Faggioli <dfaggioli@xxxxxxxx>

And that's despite "sched=credit2 crashes system when using
cpupools"? While I agree that we shouldn't delay the switch for
much longer, in particular with there already being a fix available
from you I think that one should go in before the one here.

Jan



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel