Date: Fri, 6 Dec 2019 09:58:42 +0100 (CET) From: Wojciech Puchar <wojtek@puchar.net> To: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net> Cc: Wojciech Puchar <wojtek@puchar.net>, Darius Mihai <dariusmihaim@gmail.com>, freebsd-hackers@freebsd.org Subject: Re: bhyve+windows 7 multicore performance Message-ID: <alpine.BSF.2.20.1912060957340.49163@puchar.net> In-Reply-To: <201912051924.xB5JOw7V045421@gndrsh.dnsmgr.net> References: <201912051924.xB5JOw7V045421@gndrsh.dnsmgr.net>
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>>> since -P forces context switches when that instruction is >>> executed.? >>> >>> Darius >> Possibly. But for sure - this made things faster a lot. Actually close to >> bare metal performance. > > Does this close the issue of performance for you and I can remove this > thread from my list of active investigation? yes. thank you. i used -P before but for VMs with one or 2 threads and the problem was just not visible. It just became visible on 12 thread VM.
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