Ian Collins wrote:
> Andrei Dorofeev wrote:
> >I didn't try this on a laptop, but here are some numbers from a 2-way
> >AMD system running in 64-bit mode showing how much memory gets used by
> >the
> >kernel in each case.
> >
> >NCPU    max_ncpus       kernel
> >64      2               227MB
> >21      21              231MB   - stock Nevada bits
> >64      32              233MB
> >64      64              242MB
> >
> >So if max_ncpus is set to 64, we'd be throwing away 10Mb (or ~5% of
> >all memory on a 256Mb laptop).  The difference between 21 and 32 is
> >much
> >smaller.
> >
> Are 256Mb laptops a serious concern these days?

Unfortunately yes. Think about all the second hand laptops floating
around at universities where 256MB is the maximum which fits in there...
not everyone has the money to stuff 2GB main memory in his/her brand new
laptop...

----

Bye,
Roland

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