Re: Performance Tuning 10.8 (and 10.7) for 10Gig Raw Sockets..
Re: Performance Tuning 10.8 (and 10.7) for 10Gig Raw Sockets..
- Subject: Re: Performance Tuning 10.8 (and 10.7) for 10Gig Raw Sockets..
- From: Robert Monaghan <email@hidden>
- Date: Mon, 27 Aug 2012 13:59:01 +0200
Ok,
I just did a "fore-head" slap. I miss-calculated something. I am getting all of my packets.. :)
bob.
On Aug 27, 2012, at 1:38 PM, Robert Monaghan wrote:
> Hi Everyone,
>
> I am working on an application that uses a 10Gig interface to grab custom packets using a raw socket. (no flow control!)
> Everything seems to be working, except that I can only get about 60% of the packets. The rest are dropped.
> I have been noodling with setting the SO_RCVBUF size (via setsockopt) as well as setting net.inet.raw.datagram
> and net.inet.raw.recvspace to different values.
>
> I need to reliably receive about 3000 to 4000 packets with an MTU of 1502. So far, I have been able to tweak the computer
> to get about 1800 packets (from a total of 3000) but thats about it.
>
> What is the trick to getting the OS to not drop the remaining packets? Can I instruct the kernel to create a buffer large enough to hold these packets?
>
> Thanks!
>
> bob.
>
>
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