[RFC] kern/kern_timeout.c rewrite in progress

Slawa Olhovchenkov slw at zxy.spb.ru
Thu Jan 15 15:58:12 UTC 2015


On Thu, Jan 15, 2015 at 04:51:00PM +0100, Hans Petter Selasky wrote:

> On 01/15/15 16:46, Slawa Olhovchenkov wrote:
> > On Thu, Jan 15, 2015 at 04:37:51PM +0100, Hans Petter Selasky wrote:
> >
> > Only stability impovement?
> > Or performance too?
> 
> Hi,
> 
> Stability improvement mostly. Should not affect performance from what I 
> know. Some changes are made about when and how we can select a different 
> callback CPU for a callout callback. Try reading the updated timeout(9) 

I am not kernel guru and can't be draw a conclusion from manual page.

> man manual page first. Maybe it answers your question. Else feel free to 
> ask here.

As I understand performance for massive TCP connections (tens of
thousands connections) will be same, no improvement, no degraded?
(very high lock congestion on TCP timers working).


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