At 2021年3月26日 13:43:20 -0700, "Greg A. Woods" <woods%planix.ca@localhost> wrote: Subject: Re: trouble running FreeBSD with Xen-4.13 (including weird performance issues) > > I'll give the "pv-l1tf=off,domu=off" option a try on my next reboot. > Thanks! I don't think that turning of some of the vulnerability mitigations helped with the weird performance issues I see with FreeBSD domUs on some older hardware: menu=Boot Xen:load /netbsd-XEN3_DOM0 -v bootdev=dk0 console=xencons;multiboot /xen bootscrub=false dom0_mem=4G console=com1,vga console_timestamps=datems dom0_max_vcpus=4 dom0_vcpus_pin=true pv-l1tf=off,domu=off l1d-flus=off vpmu=on It still took an enormously long time to get the installer running: # xl list Name ID Mem VCPUs State Time(s) Domain-0 0 4096 4 r----- 125.3 fbsd-test 1 1936 4 -b---- 1553.3 -- Greg A. Woods <gwoods%acm.org@localhost> Kelowna, BC +1 250 762-7675 RoboHack <woods%robohack.ca@localhost> Planix, Inc. <woods%planix.com@localhost> Avoncote Farms <woods%avoncote.ca@localhost>
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