lkml.org 
[lkml]   [2013]   [Jan]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Major network performance regression in 3.7
On Sun, Jan 06, 2013 at 08:39:53AM -0800, Eric Dumazet wrote:
> Hmm, I'll have to check if this really can be reverted without hurting
> vmsplice() again.

Looking at the code I've been wondering whether we shouldn't transform
the condition to perform the push if we can't push more segments, but
I don't know what to rely on. It would be something like this :

if (copied &&
(!(flags & MSG_SENDPAGE_NOTLAST) || cant_push_more))
tcp_push(sk, flags, mss_now, tp->nonagle);

Willy



\
 
 \ /
  Last update: 2013-01-06 18:22    [W:0.066 / U:0.780 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site