Date: Fri, 17 Apr 1998 11:36:01 +1000 From: John Saunders <john.saunders@scitec.com.au> To: lrios <lrios@ziplink.net> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Linux And FreeBSD Message-ID: <3536B201.5716C1D7@scitec.com.au> References: <Pine.BSF.3.96.980416143919.1928E-100000@zip1.ziplink.net>
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Your problem is with disk speed not memory management. Try this and then tell us which system is faster... 1) Edit your /etc/fstab file. 2) For all of your ufs filesystems, change the options from "rw" to "rw,async". 3) Save the file and reboot. Now you are playing on a level field. By default FreeBSD uses a slow but safe disk access method, by default Linux uses fast but unsafe. Then if you need more performance use the ccd device to create a striped partition across those 2 drives of yours for your /var (and /var/spool if you have it) filesystems. Cheers. lrios wrote: > Could someone please explain to me why a Linux 75 mhz machine kicks the > hell out of a FreeBSD with a Pentium II 266mhz 256M Ram and two ultra-wide > fast SCSI drives??? > > I love BSD but for performance reasons linux may be my choice. > > Any performance tips would be helpful... > > My linux machine puts out about 700 (locally)emails a minute while BSD > only puts > out about 200... my limits appear to configured properly. My kernel > options have been set.. Is there anything that I'm missing to get this > machine to work??? The only difference between the two is that the Linux > Box is working like a dog while the BSD box doesn't go above .05 load and > stays around 90 idle > > What are the differences in memory managers between the two?? > I've got a consultant here trying to get linux to do everything but with > the numbers I'm seeing it's hard to stay loyal.. Please help!! -- +------------------------------------------------------------+ . | John Saunders mailto:John.Saunders@scitec.com.au (Work) | ,--_|\ | mailto:john@nlc.net.au (Home) | / Oz \ | http://www.nlc.net.au/~john/ | \_,--\_/ | SCITEC LIMITED Phone +61 2 9428 9563 Fax +61 2 9428 9933 | v | "By the time you make ends meet, they move the ends." | +------------------------------------------------------------+ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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