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Date:      Thu, 15 Jan 2015 20:31:01 +0000
From:      Marcin Cieslak <saper@saper.info>
To:        Bryan Venteicher <bryanv@daemoninthecloset.org>
Cc:        emulation@freebsd.org, FreeBSD-Current <freebsd-current@freebsd.org>, Slawa Olhovchenkov <slw@zxy.spb.ru>
Subject:   Re: DigitalOcean offers VMs with FreeBSD!
Message-ID:  <alpine.BSF.2.11.1501152030460.91610@z.fncre.vasb>
In-Reply-To: <CAMo0n6QLmEXVGVkgRXsov5VOY87VuJkEERzzhHr1fM2jFToO1g@mail.gmail.com>
References:  <54B7A494.50205@FreeBSD.org> <54B7DC97.7050809@FreeBSD.org> <20150115154443.GA10325@zxy.spb.ru> <CAMo0n6QLmEXVGVkgRXsov5VOY87VuJkEERzzhHr1fM2jFToO1g@mail.gmail.com>

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On Thu, 15 Jan 2015, Bryan Venteicher wrote:

> On Thu, Jan 15, 2015 at 9:44 AM, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote:
> 
> > On Thu, Jan 15, 2015 at 06:28:23PM +0300, Lev Serebryakov wrote:
> >
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA512
> > >
> > > On 15.01.2015 14:29, Lev Serebryakov wrote:
> > >
> > > >
> > https://www.digitalocean.com/company/blog/presenting-freebsd-how-we-made-it-happen/
> > > >
> > > >  I didn't see this news on mailing lists :)
> > >  But here are some thread about FreeBSD is way slower than Linux in
> > > these virtual installations
> > >
> > > https://news.ycombinator.com/item?id=8888487
> >
> > May be IOPS quotation?
> > Can you test with dd and custom kernel with MAXPHYS=1048576 ?
> >
> 
> 
> What's the value of kern.timecounter.hardware? It will likely be either
> HPET or ACPI which means there is an VM exit whenever the guest reads from
> the emulated timecounter hardware. That's why I have some WIP to add
> support for KVMCLOCK [1]. I hope to merge those changes to HEAD in a week
> and STABLE shortly after.

> sysctl kern.timecounter.hardware
kern.timecounter.hardware: HPET




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