Date: Fri, 2 Jun 1995 21:49:15 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> To: henrich@crh.cl.msu.edu (Charles Henrich) Cc: henrich@crh.cl.msu.edu, freebsd-hackers@freebsd.org Subject: Re: A performance mystery Message-ID: <199506030449.VAA09321@gndrsh.aac.dev.com> In-Reply-To: <199506030336.UAA09183@gndrsh.aac.dev.com> from "Charles Henrich" at Jun 2, 95 11:36:09 pm
next in thread | previous in thread | raw e-mail | index | archive | help
>
> > ram-speed is a cache defeat program, it will *NOT* approximate bcopy rates,
> > that is why I asked you to do iozone on 1/4 memory size. I already saw
> > your ram-speed results in the first posting.
>
> Here goes with iozone auto, no delete (Micron has 64mb ram, Compaq 24mb)
We are not going to get the results I was looking for unless you
are going to follow directions a *little* closer.
``repeat 10 iozone 16 8192''
> 16 8192 2687714 14221746
You said this was a Pentium right?? If it is that number is low for
a triton board: (ASUS PCI/I-P54TP4, 90Mhz CPU, 64MB memory)
Writing the 16 Megabyte file, 'iozone.tmp'...8.757812 seconds
Reading the file...0.921875 seconds
IOZONE performance measurements:
1915685 bytes/second for writing the file
18199013 bytes/second for reading the file
> 16 8192 3360694 2890287
Ding... very low memory bandwidth :-(. Makes for a very slow
compile :-(
--
Rod Grimes rgrimes@gndrsh.aac.dev.com
Accurate Automation Company Custom computers for FreeBSD
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199506030449.VAA09321>