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Sun, 3 Nov 2024 10:46:52 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 Date: Sun, 03 Nov 2024 07:45:02 -0800 From: "Chuck Tuffli" To: "FreeBSD virtualization" Message-Id: Subject: CPU count and slow Windows VM Content-Type: multipart/alternative; boundary=316fe6f35166405d827ee55b6142e2c6 X-Spamd-Result: default: False [-3.59 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; R_SPF_ALLOW(-0.20)[+ip4:202.12.124.128/27]; R_DKIM_ALLOW(-0.20)[tuffli.net:s=fm2,messagingengine.com:s=fm3]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; RCVD_IN_DNSWL_LOW(-0.10)[202.12.124.155:from]; XM_UA_NO_VERSION(0.01)[]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; FREEFALL_USER(0.00)[chuck]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FROM_HAS_DN(0.00)[]; DMARC_NA(0.00)[tuffli.net]; TO_DN_ALL(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-virtualization@freebsd.org]; MLMMJ_DEST(0.00)[freebsd-virtualization@freebsd.org]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[tuffli.net:+,messagingengine.com:+] X-Rspamd-Queue-Id: 4XhJqy38xlz4LDg X-Spamd-Bar: --- --316fe6f35166405d827ee55b6142e2c6 Content-Type: text/plain Content-Transfer-Encoding: 7bit I'm helping someone trouble-shoot a sluggish Windows 11 VM running under bhyve (FreeBSD 14.1) related to the number of vCPUs. With 1-2 vCPUs, the VM's performance is reasonable, but adding 8 or more vCPUs makes the VM nearly unusable because even moving the mouse takes minutes. Before I dig into this, do these symptoms sound familiar? I did find a mention on the wiki (1): Only one or two VCPUs should be used during installation but this number can be increased once Windows is installed Is there something missing from bhyve's emulation that causes this? TIA --chuck (1) https://wiki.freebsd.org/bhyve/Windows --316fe6f35166405d827ee55b6142e2c6 Content-Type: text/html Content-Transfer-Encoding: quoted-printable
I'm helping som= eone trouble-shoot a sluggish Windows 11 VM running under bhyve (FreeBSD= 14.1) related to the number of vCPUs. With 1-2 vCPUs, the VM's performa= nce is reasonable, but adding 8 or more vCPUs makes the VM nearly unusab= le because even moving the mouse takes minutes.

=
Before I dig into this, do these symptoms sound familiar? I did fin= d a mention on the wiki (1):

  &n= bsp; Only one or two VCPUs should be used during installation but this n= umber
    can be increased once Windows is = installed

Is there something missing from b= hyve's emulation that causes this?
TIA

<= /div>
--chuck

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