[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] open/stat64 syscalls run faster on Xen VM than standard Linux
> -----Original Message----- > From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx > [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of > Anthony Liguori > Sent: 28 November 2005 14:39 > To: xuehai zhang > Cc: Xen Mailing List > Subject: Re: [Xen-devel] open/stat64 syscalls run faster on > Xen VM than standard Linux > > This may just be the difference between having the extra > level of block caching from using a loop back device. > > Try running the same benchmark on a domain that uses an > actual partition. While the syscalls may appear to be > faster, I imagine it's because the cost of pulling in a block > has already been payed so the overall workload is unaffected. And this would be the same as running standard linux with the loopback file-system mounted and chroot to the local file-system, or would that be different? [I'm asking because I don't actually understand enough about how it works to know what difference it makes, and I would like to know, because at some point I'll probably need to know this.] -- Mats > > Regards, > > Anthony Liguori > > xuehai zhang wrote: [snip] _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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