Date: Mon, 13 Jan 2020 14:51:16 +0100 From: Juergen Gotteswinter <mail@jservice.org> To: Stefan Parvu <sparvu@kronometrix.org> Cc: =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com>, freebsd-xen@freebsd.org Subject: Re: Xen performance on FreeBSD vs Linux Message-ID: <CACLEoRdM7_d1P%2BZiv-heLQGTyW=v3gEku1cPEO7LqrxPUa%2BD1Q@mail.gmail.com> In-Reply-To: <74365939-48EF-4BA8-9DDF-6309C4D176FE@kronometrix.org> References: <7E9802F1-172A-41A7-A110-C69A7D8D1192@kronometrix.org> <20200108154104.GE11738@Air-de-Roger> <74365939-48EF-4BA8-9DDF-6309C4D176FE@kronometrix.org>
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Am So., 12. Jan. 2020 um 20:07 Uhr schrieb Stefan Parvu < sparvu@kronometrix.org>: > > > > Also a FreeBSD dom0 can only work in PVH mode, which is faster for > > certain operations like page table modifications, but it's slower for > > others, like issuing hypercalls, when compared to a PV dom0. > > > > I don't have figures at hand now, but guest creation is likely slower > > on a FreeBSD PVH dom0 than on a Linux PV dom0, and that's because > > hypercalls are more expensive on PVH than on PV (has nothing to do > > whether Linux or FreeBSD is used). > > right. thanks a lot for pointers. A bit confusing is that I see mentioned > around that Xen of FreeBSD is experimental. Is this true ? > > I will have 2 servers to test Xen and Bhyve on FreeBSD 12.1 and check how > well the hypervisors work for different guest from Linux, BSD and Windows. > > Im more interested on bhyve vs Xen on FreeBSd than Linux. We will keep > FreeBSD as our main virtualization platform. > > Stefan FreeBSD as Dom0 feels (at least ~6 month ago) really somehow experimental compared to my linux experience. i would go the bhyve route if your hardware supports the required cpu features.
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