Date: Sun, 27 Apr 2014 14:55:03 +0400 From: Roman Bogorodskiy <novel@FreeBSD.org> To: Peter Grehan <grehan@freebsd.org> Cc: freebsd-virtualization@FreeBSD.org Subject: Re: Understanding CPU and memory usage in Bhyve Message-ID: <20140427105502.GB7804@kloomba> In-Reply-To: <535AB368.9060101@freebsd.org> References: <20140421102138.GA6157@kloomba> <535557BC.8030300@freebsd.org> <20140424160816.GB3494@kloomba> <535AB368.9060101@freebsd.org>
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--H8ygTp4AXg6deix2 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Peter Grehan wrote: > Hi Roman, >=20 > > But the summary is: is there a way to figure out how much CPU time > > bhyve and the guest spends on host CPUs N (N =3D 0, 1, ...)? >=20 > I don't think FreeBSD records that for a process, and bhyve doesn't=20 > record the guest vCPU time on individual host CPUs (it's an aggregate=20 > over all CPUs). >=20 > Do you know if Linux supports that ? As far as I understand, Linux supports that through Cgroups, specifically, quoting: http://docs.fedoraproject.org/en-US/Fedora/15/html/Resource_Management_Guid= e/sec-cpuacct.html cpuacct.usage_percpu reports the CPU time (in nanoseconds) consumed on each CPU by all tasks in this cgroup (including tasks lower in the hierarchy).=20 Roman Bogorodskiy --H8ygTp4AXg6deix2 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (FreeBSD) iQEcBAEBAgAGBQJTXOIGAAoJEMltX/4IwiJqpOsIAKxrX44phEjSKybFd6F+j/Lm GBUT4PHzDZPBJOKl/5+TRvxTZvfjNt/zIxjAZUr38QTzw5kxsRK9ekl4pWmE2IZj FDFOTxYGGPOpvaGtrUuzroJ4q9JUyUw3m9KYHCuLMcWYkvGulf3muGmtUNOIywJd KfmXqTrsLxFlXwq3UYEFF6pIprcTctyxS3BoL3zgRDCS4npJCLI1Z/bnEpZDhFY6 g/p3pFzSr6x9KVMsfXggGxxG628kKLDwC4GI2rfvUgnlMQ4neEzGzNURBJ9r/Ci4 XQG90ZYYHLAdOprPjSwKKlQlleZo/uh7mfm1sg2oAKo+NTDwcj4NOunesj4UroI= =+Me1 -----END PGP SIGNATURE----- --H8ygTp4AXg6deix2--
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