Date: Tue, 3 Dec 2019 10:58:00 +0100 (CET) From: Wojciech Puchar <wojtek@puchar.net> To: "Rodney W. Grimes" <freebsd-rwg@gndrsh.dnsmgr.net> Cc: Wojciech Puchar <wojtek@puchar.net>, freebsd-hackers@freebsd.org Subject: Re: bhyve+windows 7 multicore performance Message-ID: <alpine.BSF.2.20.1912031055480.63051@puchar.net> In-Reply-To: <201912030812.xB38ChQ0033844@gndrsh.dnsmgr.net> References: <201912030812.xB38ChQ0033844@gndrsh.dnsmgr.net>
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>> >> >> i run bhyve VM like this: >> nice -n -20 /usr/sbin/bhyve -s 0,hostbridge -m 22528M \ > ^^^^^^^^^^^^ why? to make sure VM will not be slower down too much if i put other high load on host site. > >> >> But windows feels quite slower that it was before. There is for sure no >> problem with I/O performance. It's about compute speed. > > How did you measure this? If it is just a "feel" then it could > be almost anything, if you have some solid numbers to look at > then perhaps some conclusions can be made. > >> What i do wrong? > > Try 4 cores, and drop the priority boost, you may be causeing Well i need more cores than 4 for that VM. I will try even number (10) and no nice. > an unintended side effect. > > Did you copy the windows 7 from the old server, or is this > a new install to the VM. If you copied it there may be a > HAL issue/missmatch. Copied, and installed missing drivers. I didn't install windoze for over 5 years :)
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