From: Rick Jones <rick.jones2@hp.com>
To: hadi@cyberus.ca
Cc: Krishna Kumar2 <krkumar2@in.ibm.com>,
Gagan Arneja <gaagaan@gmail.com>,
Evgeniy Polyakov <johnpol@2ka.mipt.ru>,
netdev@vger.kernel.org, Sridhar Samudrala <sri@us.ibm.com>,
David Miller <davem@davemloft.net>,
Robert Olsson <Robert.Olsson@data.slu.se>
Subject: Re: [WIP][PATCHES] Network xmit batching
Date: Fri, 08 Jun 2007 17:40:16 -0700 [thread overview]
Message-ID: <4669F6F0.9030303@hp.com> (raw)
In-Reply-To: <1181348253.4056.6.camel@localhost>
jamal wrote:
> On Fri, 2007-08-06 at 10:27 -0700, Rick Jones wrote:
>
> [..]
>
>
>>you cannot take the netperf service demand directly - each netperf is
>>calculating assuming that it is the only thing running on the system.
>>It then ass-u-me-s that the CPU util it measured was all for its work.
>>This means the service demand figure will be quite higher than it really is.
>>
>>So, for aggregate tests using netperf2, one has to calculate service
>>demand by hand. Sum the throughput as KB/s, convert the CPU util and
>>number of CPUs to a microseconds of CPU consumed per second and divide
>>to get microseconds per KB for the aggregate.
>
>
> From what you are saying above seems to me that for more than one proc
> it is safe to just run netperf4 instead of netperf2?
Well, it is easier to be safe on aggregates with netperf4 than netperf2
although at present it is more difficult to run netperf4 than netperf2
> It also seems reasonable to set up large socket buffers on the receiver.
For bulk transfers I often do.
rick
next prev parent reply other threads:[~2007-06-09 0:40 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-06 13:49 [WIP][PATCHES] Network xmit batching jamal
2007-06-07 6:16 ` Krishna Kumar2
2007-06-07 11:43 ` jamal
2007-06-07 16:13 ` Evgeniy Polyakov
2007-06-07 22:23 ` jamal
2007-06-08 8:38 ` Evgeniy Polyakov
2007-06-08 11:31 ` jamal
2007-06-08 12:09 ` Evgeniy Polyakov
2007-06-08 13:07 ` jamal
2007-06-08 21:02 ` Evgeniy Polyakov
2007-06-08 5:05 ` Krishna Kumar2
2007-06-19 13:21 ` Evgeniy Polyakov
2007-06-19 13:33 ` Evgeniy Polyakov
2007-06-19 14:00 ` Evgeniy Polyakov
2007-06-19 14:09 ` Evgeniy Polyakov
2007-06-19 16:32 ` jamal
2007-06-19 16:44 ` Evgeniy Polyakov
2007-06-19 16:28 ` jamal
2007-06-19 16:35 ` Evgeniy Polyakov
2007-06-19 16:45 ` Evgeniy Polyakov
2007-06-19 17:35 ` Robert Olsson
2007-06-19 17:48 ` jamal
2007-06-19 17:55 ` Evgeniy Polyakov
2007-06-28 0:05 ` [WIP][PATCHES] Network xmit batching - tg3 support jamal
2007-07-02 21:20 ` Matt Carlson
2007-07-03 0:21 ` Michael Chan
2007-07-03 13:26 ` jamal
2007-07-04 4:19 ` Krishna Kumar2
2007-07-04 13:22 ` jamal
2007-07-03 13:09 ` jamal
2007-07-03 19:31 ` Matt Carlson
2007-07-04 1:59 ` jamal
2007-07-03 21:30 ` David Miller
2007-06-19 22:28 ` [WIP][PATCHES] Network xmit batching David Miller
2007-06-21 15:54 ` FSCKED clock sources WAS(Re: " jamal
2007-06-21 16:08 ` jamal
2007-06-21 16:55 ` Benjamin LaHaise
2007-06-25 16:59 ` jamal
2007-06-25 17:08 ` Benjamin LaHaise
2007-06-25 17:16 ` jamal
2007-06-21 16:45 ` Evgeniy Polyakov
2007-06-25 16:58 ` jamal
2007-06-19 16:24 ` jamal
2007-06-21 21:00 ` Rick Jones
2007-06-22 9:59 ` Evgeniy Polyakov
2007-06-25 17:35 ` Rick Jones
2007-06-07 8:42 ` Krishna Kumar2
2007-06-07 12:16 ` jamal
2007-06-08 5:06 ` Krishna Kumar2
2007-06-08 11:14 ` jamal
2007-06-08 11:31 ` Krishna Kumar2
2007-06-08 11:43 ` jamal
2007-06-08 18:00 ` Rick Jones
2007-06-08 17:27 ` Rick Jones
2007-06-09 0:17 ` jamal
2007-06-09 0:40 ` Rick Jones [this message]
2007-06-07 22:42 ` jamal
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