Date: Sun, 12 Jan 2020 21:07:32 +0200 From: Stefan Parvu <sparvu@kronometrix.org> To: =?utf-8?Q?Roger_Pau_Monn=C3=A9?= <roger.pau@citrix.com> Cc: freebsd-xen@freebsd.org Subject: Re: Xen performance on FreeBSD vs Linux Message-ID: <74365939-48EF-4BA8-9DDF-6309C4D176FE@kronometrix.org> In-Reply-To: <20200108154104.GE11738@Air-de-Roger> References: <7E9802F1-172A-41A7-A110-C69A7D8D1192@kronometrix.org> <20200108154104.GE11738@Air-de-Roger>
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> > 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
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