Re: Swap or I/O Improvement in Fedora 8?



Hi,

(Sorry if this reply post becomes a new topic, I found it missing when I
refresh my news reader.)

General Schvantzkopf wrote:
They both use the same kernel so there shouldn't be any difference in the
swap algorithms. The memory usage might be different, if you are using
less memory with F8 then you would do less swapping. How much memory do
you actually need? You really really don't want to be swapping, buy more
RAM.

I was testing some out-of-core applications which can use 32GB of RAM,
depending on the problem size I provided in the command line argument (in
most cases, the problems were N x N matrix algorithms where N can be 64K, or
even more). So I suppose common motherboards for PCs won't be supporting
that much RAM anyway.

I found that Fedora 8 (64-bit version) could run up to 5 times as fast as
Fedora 7 (64-bit version), depending on the application. For the memory
usage, Fedora 8 used around 120MB RAM while Fedora 7 used about 210MB. So in
my 2GB RAM PC, I got around 1.9GB under Fedora 8, and 1.8GB under Fedora 7.
Considering I was running a program needing 16GB to 32GB RAM, does this
100MB make such a big difference?

Best Regards,
LaBird (Benny).
[Email: Remove all underscores to get the correct address.]


.



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