Hi... > On Jan 18, 2008 11:11 AM, Onkar <onkar.n.m@xxxxxxxxx> wrote: > > Hi all, > > I managed to boot up my system with Xen patched kernel. I > > start the Xen console. But the Xen indicates that there is no free memory > > available. Which is the most trustworthy way to get the current memory usage > > of the system ?? any command ?? Which side told you that? host or guest? How much do you give for the guest? Another questions are: 1. How many guests are currently running? And how much do you give to each of them? 2. what is the initial free memory when only dom0 is active? when I said free, it's "free+ cached+buffer" shown from top/free/vmstat Assuming it's the guest that told you there was no free RAM, maybe there are fair amount of free RAM but....maybe..Xen need contigous pages ( via vmalloc IIRC). Thus if you suffer pretty bad fragmentation, you can't get them as big as you want. And how far you can trust it? Not too far, but at least you can treat it as "approximation". The reason, IMHO, because the statistics are snapshots of very heavily fluctuating environment.... in this case...VM. You can understand it more thoroughly if you study top/vmstat/free codes. regards, Mulyadi. -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
