What "network" driver are you using under VMware?
the emulated lance-ethernet, or the vmnet virtio one?
--
] He who is tired of Weird Al is tired of life! | firewalls [
] Michael Richardson, Sandelman Software Works, Ottawa, ON|net architect[
] m...@sandelman.ottawa.on.ca
> -Original Message-
> From: tcpdump-workers-ow...@lists.tcpdump.org
> [mailto:tcpdump-workers-ow...@lists.tcpdump.org] On Behalf Of
> Darren Reed
> Sent: Thursday, December 10, 2009 9:54 PM
> To: tcpdump-workers@lists.tcpdump.org
> Subject: Re: [tcpdump-workers] Libpcap
ilto:tcpdump-workers-ow...@lists.tcpdump.org] On Behalf Of
> Guy Harris
> Sent: Thursday, December 10, 2009 9:41 PM
> To: tcpdump-workers@lists.tcpdump.org
> Subject: Re: [tcpdump-workers] Libpcap performance under
> VMWare guest OSes
>
>
> On Dec 10, 2009, at 6:33 PM, Mark
Mark Bednarczyk wrote:
Hello,
We are running into some performance issues with libpcap when running
under VMWare products such as VMWworkstation or VMServer. These are guest
OSes (running as a VM process on a host operating system.)
Does the performance change if you compare capturing pa
On Dec 10, 2009, at 6:33 PM, Mark Bednarczyk wrote:
> The debian packages are:
>
> ubuntu9-x86:~# dpkg-query --show libpcap0.8
> libpcap0.8 1.0.0-1
I *suspect* that means that it's libpcap 1.0.0, which means that *if* the
kernel supports the memory-mapped interface to PF_PACKET sockets, l
o:tcpdump-workers-ow...@lists.tcpdump.org] On Behalf Of
> Guy Harris
> Sent: Thursday, December 10, 2009 8:16 PM
> To: tcpdump-workers@lists.tcpdump.org
> Subject: Re: [tcpdump-workers] Libpcap performance under
> VMWare guest OSes
>
>
> On Dec 10, 2009, at 4:45 PM, Mar
On Dec 10, 2009, at 4:45 PM, Mark Bednarczyk wrote:
> Somehow libpcap, when it taps into this captured traffic, is not able to
> handle a fraction of the actual traffic.
The code path through libpcap shouldn't change merely because you're running in
a VM - it should be the exact same, as long a
hursday, December 10, 2009 4:43 PM
To: tcpdump-workers@lists.tcpdump.org
Subject: Re: [tcpdump-workers] Libpcap performance under
VMWare guest OSes
What is the delta in "plain" packet per second performance
between the VMguest and bare iron? I'd expect that to
correlate with libpc
> Sent: Thursday, December 10, 2009 4:43 PM
> To: tcpdump-workers@lists.tcpdump.org
> Subject: Re: [tcpdump-workers] Libpcap performance under
> VMWare guest OSes
>
> What is the delta in "plain" packet per second performance
> between the VMguest and bare iron? I'
What is the delta in "plain" packet per second performance between the VMguest
and bare iron? I'd expect that to correlate with libpcap performance. Ie, if
the VMguest cannot do well on plain packet per second stuff (like say burst
mode/aggregate netperf TCP_RR) then it won't do well on libpca
Hello,
We are running into some performance issues with libpcap when running
under VMWare products such as VMWworkstation or VMServer. These are guest
OSes (running as a VM process on a host operating system.)
We are finding that libpcap drops packets with only few hundred kilo-bits
traffic ca
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