Messages in this thread | | | Date | Mon, 30 Apr 2007 10:42:07 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: vmstat: use our own timer events |
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On Mon, 30 Apr 2007, Arjan van de Ven wrote:
> > Well the cache_reaper of SLAB hits hard todays anyways. This will help > > if they switch to slub because the counter consolidation is much lighter > > weight. > > it's not about the weight. It's about waking up *at all*. I've been working > really hard to get a system with a reasonable average idle time (600ms+), but > I obviously had to patch the SLAB reaper to be at a different resolution...
If you use SLUB then its going to be gone.
> > I am fine with delaying this. I just wanted the timer guys to have a chance > > to shape this a bit. Not sure what they want. What they did to the > > cache_reaper in 2.6.20/21 is bad. > > HUH? The cache_reaper DID NOT CHANGE with the round_jiffies() change. > Before it had a 3 jiffies per cpu offset, after it has a 3 jiffies per cpu > offset.
It seems that it does use round_jiffies_relative() instead?
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