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From: Bin Zhang <bzhang@varmour.com>
To: dev@dpdk.org
Subject: [dpdk-dev] performance for 1500byte packet
Date: Wed, 12 Mar 2014 17:07:32 -0700	[thread overview]
Message-ID: <CAJ-NKLoihXMm1ogEeL31P8P6XELYeBJbrQYO-hFrXNhBvEAEFw@mail.gmail.com> (raw)

Hi,

I am seeing very strange behaving for l2fwd in VM, here are performance
number:

64byte -- 8.4 mil pps
256byte - 7.7 mil pps
512byte - 1.5 mil pps
1500byte - 500K pps

My setup details are
- Traffic coming in on  a 10G interface and going out on another 10G
interface
- Both 10G Nic are 82599
- using virtual function in VM(vmware esxi 5.1)
- Host OS: Ubuntu 12.04
- Using one cpu to do these testing

So my question?
Why packet size bigger than 256 cause performance drop a lot?

Thanks,
Bin

                 reply	other threads:[~2014-03-13  0:06 UTC|newest]

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