Date: Thu, 20 Jul 1995 13:35:17 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> To: rpt@miles.sso.loral.com (Richard Toren) Cc: hackers@freebsd.org Subject: Re: ramspeed results - ?? Message-ID: <199507202035.NAA09749@gndrsh.aac.dev.com> In-Reply-To: <Pine.SUN.3.91.950720134228.3308A-100000@miles> from "Richard Toren" at Jul 20, 95 01:50:12 pm
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>
> I picked up ramspeed from this list a week ago or so. Ran it last night.
> 1> Don't know how long it took, but it was over 90 minutes.
:-(.
> 2> iT's 486DX66, BT SCSI2 VLB controller, 8 MB memory
^^^^^^^^^^^
That code as supplied requires at least 8MB of totally free
and unused memory or you machine pages faults and swaps to
death. This means you need a machine with at least 12MB and
usually more like 16MB to run it as supplied.
>
> Results -
> 49005fb0 44.464 uS/op 2.25e+04 op/sec 0.086 mb/sec
> 8938c0df 44.845 uS/op 2.23e+04 op/sec 0.085 mb/sec
>
> What is this telling me. How does it compare? Is the 3rd a disk swap rate
> or something?
It is meaningless given the configuration. All 3 result values are
the same result just expressed in 3 different ways, they all have
very simply mathmatical relations and given any 1 of them I can
calculate the other 2.
Change:
#define TESTSIZE (8192*1024)
to something like
#define TESTSIZE (4096*1024)
And boot your system single user to run the test to maximize the
free memory pool and to make sure that no vm page fragmentation
has happened.
--
Rod Grimes rgrimes@gndrsh.aac.dev.com
Accurate Automation Company Reliable computers for FreeBSD
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