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SubjectRe: lmbench results for 2.4 and 2.5 -- updated results
On Mon, Mar 24, 2003 at 03:36:02PM -0800, Andrew Morton wrote:
> "Martin J. Bligh" <mbligh@aracnet.com> wrote:
> >
> > On a slightly related note, I played with lmbench a bit over the weekend,
> > but the results were too unstable to be useful ... they're also too short
> > to profile ;-(
> >
> > I presume it does 100 iterations of a test (like fork latency?). Or does
> > it just do one? Can I make it do 1,000,000 iterations or something
> > fairly easily ? ;-) I didn't really look closely, just apt-get install
> > lmbench ...
>
> Yes, that is something I've wanted several times. Just a way to say "run
> this test for ever so I can profile the thing".
>
> Even a sleazy environment string would suffice.

It's been there, I suppose you need to read the source to figure it out
though the lmbench script also plays with this I believe.

work ~/LMbench2/bin/i686-pc-linux-gnu ENOUGH=1000000 time bw_pipe
Pipe bandwidth: 655.37 MB/sec
real 0m23.411s
user 0m0.480s
sys 0m1.180s
work ~/LMbench2/bin/i686-pc-linux-gnu time bw_pipe
Pipe bandwidth: 809.81 MB/sec

real 0m2.821s
user 0m0.480s
sys 0m1.180s


--
---
Larry McVoy lm at bitmover.com http://www.bitmover.com/lm
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