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
| ||
|
Date: Mon, 9 Jul 2012 13:13:26 +0800 From: Ming Lei <tom.leiming@...il.com> To: Eric Dumazet <eric.dumazet@...il.com> Cc: Network Development <netdev@...r.kernel.org>, David Miller <davem@...emloft.net> Subject: Re: TCP transmit performance regression On Fri, Jul 6, 2012 at 1:16 PM, Eric Dumazet <eric.dumazet@...il.com> wrote: > On Fri, 2012-07-06 at 06:58 +0200, Eric Dumazet wrote: >> On Fri, 2012-07-06 at 08:45 +0800, Ming Lei wrote: >> >> > Unfortunately, the patch still hasn't any improvement on the transmit >> > performance of beagle-xm. >> >> Ah yes, I need to change usbnet as well to be able to fully recycle the >> big skbs allocated in turbo mode. >> >> Right now they are constantly allocated/freed and this sucks if SLAB >> wants to check poison bytes in debug mode. > > In the mean time, you also can use the following patch I have to polish, > but this should give you a nice boost, since the big skb skb->head wont > be checked by SLAB debug : Unfortunately, the patch makes the result of the same test worsen than without the patch, :-( Thanks, -- Ming Lei -- 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