RE: [Xen-devel] [PATCH] Make HZ a boot-time configurable

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> I understand the trade-offs that xen is currently optimized 
> for. However, I don't think that HZ=100 is right for all 
> places and all times. I also think that users would 
> appreciate it if they didn't have to go edit config.h and 
> re-compile if they wanted to change HZ. For those using xen 
> as a platform for development it probably makes sense if HZ 
> is the same as the kernel they intend to ship. For example, 
> very early on in testing with HZ=1000 I hit an interrupt race 
> condition in XenFreeBSD that I have never seen before.

I'd really prefer to kill the periodic ticker in Xen altogether. If
domains want a periodic ticker they should just set their alarm timer
appropriately.

Ian


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