From: Bandan Das <bsd@redhat.com>
To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: tj@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
mst@redhat.com, jiangshanlai@gmail.com, RAPOPORT@il.ibm.com
Subject: Re: [RFC PATCH 0/4] cgroup aware workqueues
Date: Mon, 21 Mar 2016 13:49:55 -0400 [thread overview]
Message-ID: <jpga8lr67r0.fsf@linux.bootlegged.copy> (raw)
In-Reply-To: <56EFB0E0.2080405@de.ibm.com> (Christian Borntraeger's message of "Mon, 21 Mar 2016 09:29:20 +0100")
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.
next prev parent reply other threads:[~2016-03-21 17:49 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-18 22:14 [RFC PATCH 0/4] cgroup aware workqueues Bandan Das
2016-03-18 22:14 ` [RFC PATCH 1/4] cgroup: Introduce a function to compare two tasks Bandan Das
2016-03-18 22:14 ` [RFC PATCH 2/4] workqueue: introduce support for attaching to cgroups Bandan Das
2016-03-18 22:14 ` [RFC PATCH 3/4] cgroup: use spin_lock_irq for cgroup match and attach fns Bandan Das
2016-03-18 22:14 ` [RFC PATCH 4/4] vhost: use workqueues for the works Bandan Das
2016-03-20 18:10 ` [RFC PATCH 0/4] cgroup aware workqueues Tejun Heo
2016-03-21 17:35 ` Bandan Das
2016-03-21 7:58 ` Michael Rapoport
2016-03-21 8:29 ` Christian Borntraeger
2016-03-21 17:49 ` Bandan Das [this message]
[not found] ` <201603210758.u2L7wiXA028101@d06av09.portsmouth.uk.ibm.com>
2016-03-21 17:43 ` Bandan Das
2016-03-22 7:12 ` vhost threading model (was: Re: [RFC PATCH 0/4] cgroup aware workqueues) Michael Rapoport
[not found] ` <201603220712.u2M7CCfq004548@d06av03.portsmouth.uk.ibm.com>
2016-03-22 19:00 ` vhost threading model Bandan Das
2016-03-23 11:13 ` Michael Rapoport
[not found] ` <201603210758.u2L7wiY9003907@d06av07.portsmouth.uk.ibm.com>
2016-03-30 17:04 ` [RFC PATCH 0/4] cgroup aware workqueues Tejun Heo
2016-03-31 6:17 ` Michael Rapoport
2016-03-31 17:14 ` Tejun Heo
2016-03-31 18:45 ` Bandan Das
2016-04-03 10:43 ` Michael Rapoport
[not found] ` <201604031043.u33AhpSF023771@d06av06.portsmouth.uk.ibm.com>
2016-04-04 17:00 ` Bandan Das
2016-04-03 10:43 ` Michael Rapoport
2016-05-27 9:22 ` Michael Rapoport
2016-05-27 14:17 ` Tejun Heo
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