lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Thu, 07 Jun 2007 08:22:42 -0400
From:	jamal <hadi@...erus.ca>
To:	David Miller <davem@...emloft.net>
Cc:	kaber@...sh.net, peter.p.waskiewicz.jr@...el.com,
	netdev@...r.kernel.org, jeff@...zik.org, auke-jan.h.kok@...el.com
Subject: Re: [PATCH] NET: Multiqueue network device support.

On Wed, 2007-06-06 at 21:08 -0400, jamal wrote:

> It's too depressing - so i came back here for a break ;->

I am sure you would agree it was too depressing ;->

> As a side note: You will have to do a lot of surgery to the current code
> to make tx run on multi CPUs. It needs some experimenting to get right.
> And i am begining to like Herberts changes ;->

On clear morning thinking:
There is a scenario where multi CPUs will benefit and that is if a
single CPU cant pump fast enough to fill the wire. I think this may have
been your initial comment but we digressed into the locks. I still think
the bottleneck on the tx that needs to improve is IO (DMA, PCI/X/E etc).

And as you know though that requires some major surgery (given the
multiple producer single consumer approach we have today) and certainly
Peters patches dont add value in that direction.

cheers,
jamal

-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists