linux-kernel - Re: [PERF RESULTS] virtio and vhost-net performance enhancements

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Date:	Thu, 26 May 2011 21:59:10 +0530
From:	Krishna Kumar2 <krkumar2@...ibm.com>
To:	Krishna Kumar2 <krkumar2@...ibm.com>
Cc:	Christian Borntraeger <borntraeger@...ibm.com>,
	Carsten Otte <cotte@...ibm.com>, habanero@...ux.vnet.ibm.com,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	kvm@...r.kernel.org, lguest@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
	linux390@...ibm.com, "Michael S. Tsirkin" <mst@...hat.com>,
	netdev@...r.kernel.org, Rusty Russell <rusty@...tcorp.com.au>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Steve Dobbelstein <steved@...ibm.com>,
	Tom Lendacky <tahm@...ux.vnet.ibm.com>,
	virtualization@...ts.linux-foundation.org,
	Shirley Ma <xma@...ibm.com>
Subject: Re: [PERF RESULTS] virtio and vhost-net performance enhancements

Krishna Kumar2/India/IBM wrote on 05/26/2011 09:51:32 PM:

> > Could you please try TCP_RRs as well?
>
> Right. Here's the result for TCP_RR:

The actual transaction rate/second numbers are:

_____________________________________________________________
#     RR1      RR2 (%)          SD1        SD2 (%)
_____________________________________________________________
1     9476     9903 (4.5)       28.9       19.8 (-31.4)
2     17337    18225 (5.1)      92.7       83.7 (-9.7)
4     17385    27902 (60.4)     364.8      315.8 (-13.4)
8     25560    42912 (67.8)     1428.1     1234.0 (-13.5)
16    35898    55934 (55.8)     4391.6     4038.1 (-8.0)
32    48048    80228 (66.9)     17391.4    14932.0 (-14.1)
64    60412    88929 (47.2)     71087.7    54230.1 (-23.7)
96    71263    92439 (29.7)     145434.1   128214.0 (-11.8)
128   84208    91014 (8.0)      233668.2   238888.6 (2.2)
_____________________________________________________________
RR: 37.3%     SD: -6.7%
_____________________________________________________________

Thanks,

- KK

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