One other thing to note is that Tx rate limiting is a cap, not a guarantee that
the bandwidth allocation can be provisioned. Other issues, especially the
resource allocation to your VMs, but also other matters such as the kernel used
in the VMs, the hypervisor, etc. can impact total bandwidth capacity.
From looking at the results you've shown none of the VMs are exceeding their
rate limit. It's impossible for us to tell from your email why you're not
getting line rate but as I mentioned above there could be many reasons for that.
- Greg
-Original Message-
From: Brandeburg, Jesse [mailto:jesse.brandeb...@intel.com]
Sent: Monday, April 11, 2011 9:04 AM
To: 박대영; e1000-devel@lists.sourceforge.net
Subject: Re: [E1000-devel] I have a Problem in vf rate limit
How are you measuring bandwidth?
-Original Message-
From: 박대영 [mailto:likebulle...@gmail.com]
Sent: Monday, April 11, 2011 4:49 AM
To: e1000-devel@lists.sourceforge.net
Subject: [E1000-devel] I have a Problem in vf rate limit
hello I'm using a Ixgbe 3.3.8.
there are new feature vf rate limit.
when I use this feature with 3 VM in xen. and rate limit configuration VM
1:
2Gb/s VM 2: 3Gb/s VM 3: 5Gb/s
but result is VM 1: 1962Mb/sec VM2: 1910Mb/sec VM3: 3165Mb/sec
SUM of bandwidth is only 7Gb/sec.
what is problem.
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