[OmniOS-discuss] Creating KVMs
Eric Sproul
esproul at omniti.com
Thu Oct 4 12:34:16 EDT 2012
On Tue, Oct 2, 2012 at 5:23 PM, Bryan Horstmann-Allen
<bdha at mirrorshades.net> wrote:
> | You'll probably also want "set hires_tick=1" if you're not doing that already.
>
> Do you have a reference for that?
Theo talked about it on IRC a while back:
http://echelog.com/logs/browse/illumos/1332712800 (search for "hires")
The gist is that it affects the minimum sleep time available. If a
program wants to "sleep 1ms" the least it can get with the default
tick rate is 10ms. That leads to a non-trivial amount of busywait or
sleep time and less work getting done, especially for highly
concurrent apps like Reconnoiter and ATS.
Eric
More information about the OmniOS-discuss
mailing list