On Thu, Jan 23, 2003 at 10:50:01PM +0300, Lev Serebryakov wrote: > Hello, current! How are you? > > When I needed to experiment with 4.6-RELEASE and I didn't have > ``free'' computer, I installed 4.6-RELEASE on VMWare. It works > pretty well and I was totally satisfied. > > My host is: 2xP!!!-770Mhz, 512Mb of memory, Hardware RAID with > 2x40Gb IBM IDE HDDs (and one simple system disk). Host OS is W'2000 WS. > > Now I'm trying to look at 5.0-RELEASE (I've downloaded ISO of first > i386 CD). > > It doesn't work under VMWare 3.2! Ok, it works, really. But speed is > VERY low. I even could not do installation! Unpacking of > distributive have been started at normal speed, but after 2 or 3 > minutes speed decreased to 6Kb/s and after that to 1Kb/s! `top' on > emergency console shows, that cpio+gunzip take only 5% of CPU, > system takes 25% of CPU and interrupts takes 70% of CPU! > > 4.6-RELEASE installs on same VMWare virtual computer without any > problems and works very fast! > > Is it problem of VMWare or 5.0-RELEASE? Is it known problem? I could > provide any additional information, if needed.
From sys/i386/conf/NOTES: # CPU_DISABLE_CMPXCHG disables the CMPXCHG instruction on > i386 IA32 # machines. VmWare seems to emulate this instruction poorly, causing # the guest OS to run very slowly. Enabling this with a SMP kernel # will cause the kernel to be unusable. You need a kernel with this option or compiled with "cpu I386_CPU". -- Brooks -- Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4
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