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Re: [RFC PATCH 0/4] cgroup aware workqueues

From Bandan Das <bsd@redhat.com>
Newsgroups linux.kernel
Subject Re: [RFC PATCH 0/4] cgroup aware workqueues
Date 2016-03-21 19:00 +0100
Message-ID <rfchs-Dm-5@gated-at.bofh.it> (permalink)
References <reaUp-1RE-7@gated-at.bofh.it> <rf3nQ-2Wt-7@gated-at.bofh.it>
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Christian Borntraeger <borntraeger@de.ibm.com> writes:

> On 03/18/2016 11:14 PM, Bandan Das wrote:
> [..]
>> Netperf:
>> Two guests running netperf in parallel.
>>     	   	       	          Without patches                  With patches
>>    
>> TCP_STREAM (10^6 bits/second)         975.45			     978.88	
>> TCP_RR (Trans/second)		      20121			     18820.82
>> UDP_STREAM (10^6 bits/second)	      1287.82		  	     1184.5
>> UDP_RR (Trans/second)		      20766.72			     19667.08
>> Time a 4G iso download		      2m 33 seconds		     3m 02 seconds
>
> So TCP stream stays the same everything else shows a regression? Not good.
> Have you an idea why this happens?

I am not sure yet but my guess is the way these patches implement cgroup
support. I will run some tests just with workqueues (and without these patches) and
see if the newer numbers are consistent with these.

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Thread

[RFC PATCH 0/4] cgroup aware workqueues Bandan Das <bsd@redhat.com> - 2016-03-18 23:20 +0100
  Re: [RFC PATCH 0/4] cgroup aware workqueues Tejun Heo <tj@kernel.org> - 2016-03-20 19:20 +0100
    Re: [RFC PATCH 0/4] cgroup aware workqueues Bandan Das <bsd@redhat.com> - 2016-03-21 18:40 +0100
  Re: [RFC PATCH 0/4] cgroup aware workqueues "Michael Rapoport" <RAPOPORT@il.ibm.com> - 2016-03-21 09:00 +0100
  Re: [RFC PATCH 0/4] cgroup aware workqueues Christian Borntraeger <borntraeger@de.ibm.com> - 2016-03-21 09:30 +0100
    Re: [RFC PATCH 0/4] cgroup aware workqueues Bandan Das <bsd@redhat.com> - 2016-03-21 19:00 +0100
  Re: [RFC PATCH 0/4] cgroup aware workqueues Bandan Das <bsd@redhat.com> - 2016-03-21 18:50 +0100
    vhost threading model (was: Re: [RFC PATCH 0/4] cgroup aware workqueues) "Michael Rapoport" <RAPOPORT@il.ibm.com> - 2016-03-22 08:20 +0100
    Re: vhost threading model Bandan Das <bsd@redhat.com> - 2016-03-22 20:10 +0100
      Re: vhost threading model "Michael Rapoport" <RAPOPORT@il.ibm.com> - 2016-03-23 12:20 +0100
  Re: [RFC PATCH 0/4] cgroup aware workqueues Tejun Heo <tj@kernel.org> - 2016-03-30 19:10 +0200
    Re: [RFC PATCH 0/4] cgroup aware workqueues "Michael Rapoport" <RAPOPORT@il.ibm.com> - 2016-03-31 08:20 +0200
      Re: [RFC PATCH 0/4] cgroup aware workqueues Tejun Heo <tj@kernel.org> - 2016-03-31 19:20 +0200
        Re: [RFC PATCH 0/4] cgroup aware workqueues Bandan Das <bsd@redhat.com> - 2016-03-31 20:50 +0200

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