Re: [Xen-devel] xen 2.0 testing idle_loop -and -03

[Adam Sulmicki <adam@xxxxxxxxxxxx>]

> > 1) extreme slowness
> Is this in DOM0 or some other domain? If it looks like I/O slowness,
> have any network or disc microbenchmarks (e.g., net/disc bandwidth or
> latency) got much worse?
dom0, i tried to compile kernel and it was like 10-100 times slower... but 
I got impression that it was because the disk was heavily trashing.. it 
seemed like the 45 out of the 65mb disappeared somewhere, and the 
remainining 15 was just not enough to compile kernel (in fact oom-killer 
killed my sshd twice).
> > 2) won't boot on p3 with compiled for for cyrix
> Has that ever worked? I did recently fix a problem with
> CONFIG_X86_USE_3DNOW, so were you testing a very up to date version of
> the repository? If you are totally stuck send me your .config and I
> can build and test.
yeah, it worked just fine on xen 2.0 release. I could compile kernel with 
CONFIG_MCYRIXIII and then run the same kernel on both P3 and via (with 
some special patches). This time the kernel bombed on P3 (have not tried 
it on via).
the repository was as of yesterday.

> > 3) "idle_loop" gets optimized away
> Okay I fixed this now.
>
> I did a push from -testing to teh stable tree yesterday
> (v2.0.2). There are already a couple more fixes added to the -testing
> tree since then so I expect we will end up doing a 2.0.3 release
> fairly soon (there are a few other problems we would like to get fixed
> first, so it will probably be early in the new year).
cool



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