[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] Poor Windows 2003 + GPLPV performance compared to VMWare
On Tue, 2012-09-18 at 13:24 +0100, Adam Goryachev wrote: > On 17/09/12 18:54, Ian Campbell wrote: > > On Fri, 2012-09-14 at 14:30 +0100, Ian Campbell wrote: > >>>> Does your system have any NUMA properties? > >>> I don't really understand this question.... is there a simple method to > >>> check? It is a AMD Phenom(tm) II X6 1100T Processor on a reasonable > >>> desktop motherboard, nothing fancy.... > > I don't have a NUMA system to hand, but on my non-NUMA system I see in > > the logs: > > (XEN) No NUMA configuration found > > > > You should see that or something more informative. > "xm dmesg|grep -i numa" produces no output, so again, I still have no > definitive answer to this. > > Actually, got it... : > dmesg|grep -i numa > [ 0.000000] Scanning NUMA topology in Northbridge 24 > [ 0.000000] No NUMA configuration found > > That is not xen, that is the normal kernel... or perhaps xen has hidden > the numa config from linux... I'm really not sure... > > Also at least in 4.2 "xl info -n" gives some details. Not sure if xm has > > the same option? > This is getting better. > xm info -n > numa_info : none > > Amongst lots of other interesting information. > > So, seems pretty definitive that there is no numa support here. > > Is this still relevant to the diagnosis of very slow windows domu? No, I was thinking of issues like front/backend on different NUMA nodes and the like. Ian. _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxx http://lists.xen.org/xen-users
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