more RAM + faster disk -> slower box?!

Paul Richards paul at
Thu Nov 29 15:45:56 GMT 2001

--On Thursday, November 29, 2001 15:26:45 +0000 Aled Morris
<aledm at> wrote:

> On Thu, 29 Nov 2001, Paul Richards wrote:
>> Adding non-cacheable memory to a FreeBSD box should still makes things
>> faster, if you actually need to use that memory, since even uncached
>> memory is still a lot faster than swapping to disk.
> unless the working set pages for the executable were previously in the
> cached area and are now in the unchached area due to inactive but not
> swapped-out programs clogging up the prestigous low memory.

Actually no, because previously your machine was swapping and now it isn't.

You're point is correct, but the performance is still significantly better
than before because it won't be thrashing anymore.

Paul Richards
FreeBSD Services Ltd

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