Re: Good MM benchmarks utilities?

Larry McVoy (lm@bitmover.com)
Tue, 05 Jan 1999 09:58:54 -0800

"Alexandre Hautequest" <hquest@linuxbr.com.br> says:
: Hi.
:
: I've found lmbench, from www.bitmover.com/lmbench, who maybe can do what
: you want.
:
: > I've been doing some benchmarking of the 2.2pre kernels and various
: patches in
: > development. I am looking for memory management benchmark utilities.
: Something
: > like Bonnie for vm subsystem benchmarking.

There is something in lmbench which can sort of do what you want. If what
you want is to touch a lot of memory and time how long that takes, you can
do this

lmdd opat=1 bs=200m count=1

that will allocate a 200m buffer, bzero it, and then put a pattern in it once.

You may want to run over the memory several times, then use a count=5 etc.

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