It's Tue, Dec 25, 2007 at 12:00 . I'm in a small dim room with doors labeled "Dungeon" and "Forbidden". There is noise, the door marked Dungeon flies open and [EMAIL PROTECTED] SHOUTS:
> Date: Mon, 24 Dec 2007 08:49:36 -0700 > From: Brett Glass <[EMAIL PROTECTED]> > Subject: Re: SMP on FreeBSD 6.x and 7.0: Worth doing? > To: Scott Long <[EMAIL PROTECTED]> > Cc: [EMAIL PROTECTED] > At 07:14 AM 12/24/2007, Scott Long wrote: > >Brett, > >There could be several problems here: > >1. WITNESS, INVARIANTS, malloc debugging. Are any of these > >turned on for you? I don't recall if malloc debugging got > >turned off yet for the 7.0 snapshots. > I nuked debugging when I recompiled the kernel with SCHED_ULE. > >2. Disk subsystem. What kind of disk controller are you using? > >Not all drivers work well in FreeBSD. Are linux and freebsd > >using identical hardware? > They were. The drives are SATA. That still doesn't tell us if the drives are identical in throughput. Unless the drives are the same model/manufacturer, you should go to the manufacturers web-site for both drives, and look for the technical specs. THen you need to look for the speed of data transfer from the platter to the internal memory. I've seen [ in the past ] drives with lower revolutions per minute out-perform faster rotating drives because the slower drive had a better head design and could transfer data much faster. If this task is not up to you perhaps you could post the make/model number of the drives on both systems. Without knowing the sub-system capability you could be misleading yourself with other tests. Bill -- Bill Vermillion - bv @ wjv . com _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
