| Re: Re: [Announce] Kernel RHEL6 testing 042stab053.4 [message #45651 is a reply to message #45650] |
Tue, 27 March 2012 05:29   |
jjs - mainphrame
Messages: 44
Registered: January 2012
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Member |
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Kir,
I'll send you the dbench scripts and output if you want - I'll even give
you remote access to my test system if you want to take a look.
Joe
On Mon, Mar 26, 2012 at 9:45 PM, Kirill Korotaev <dev@parallels.com> wrote:
> :)))
> Actually, this can't be true, cause simfs overhead is naturally 0%. It
> intercepts only statfs() to fix df output, all the rest calls are native.
> So it's statistical deviation if you see simfs to be slower then native.
>
> And, yes, ploop was designed to have near 0% overhead as well (unlike
> Linux loopback). It bypasses FS layer and works directly with block layer
> on fast paths.
>
> Thanks,
> Kirill
>
>
> On Mar 27, 2012, at 04:01 , jjs - mainphrame wrote:
>
> > I'm happy to report that the ploop-based CT under 042stab053.4 finishes
> a punishing dbench run with no problems. I was curious to see what
> performance would be like, and the dbench results from the ploop-based CT
> are actually closer to the host performance than the simfs-based CT is.
> >
> > Joe
> >
> > On Mon, Mar 26, 2012 at 7:05 AM, Kir Kolyshkin <kir@openvz.org> wrote:
> > OpenVZ project has released a new RHEL6 based testing kernel. Read below
> > for more information. Everyone using this kernel branch is advised to
> > upgrade.
> >
> > NOTE this is a *testing* kernel, not recommended for production.
> >
> >
> > Changes
> > =======
> > (since 042stab053.3)
> > * Fixes in UBC, CPT, ploop
> >
> >
> > Compatibility
> > =============
> > No new issues
> >
> >
> > Download
> > ========
> > http://wiki.openvz.org/Download/kernel/rhel6-testing/042stab 053.4
> >
> >
> > Bug reporting
> > =============
> > Use http://bugzilla.openvz.org/ to report any bugs found.
> >
> >
> > Other sources of info on updates
> > ================================
> > See http://wiki.openvz.org/News to view all the news (including updates)
> > online. There you can also find RSS/Atom feed links.
> >
> >
> > Best regards,
> > OpenVZ team.
> > _______________________________________________
> > Announce mailing list
> > Announce@openvz.org
> > https://openvz.org/mailman/listinfo/announce
> >
> > <ATT00001.c>
>
>
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