lkml.org 
[lkml]   [2008]   [Oct]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: IRQ balancing on a router
From
Date
On Fri, 2008-10-03 at 06:38 -0700, Arjan van de Ven wrote:

> The good news is that irqthreads at least have the potential to solve
> this "lack of information"; if not, we could consider doing a form of
> microaccounting for irq handlers....

I have some patches floating about that account for nmi/irq/softirq time
in a fine grained scale. The trouble is that i've so far not found a way
to handle the case of a jiffie based sched_clock().

The trouble with that is that time always increases in IRQ context, so
nmi=0, softirq=0, regular=0 but irq=100%, which is obviuosly
sub-optimal :-)



\
 
 \ /
  Last update: 2008-10-07 12:33    [W:0.100 / U:7.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site