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From Toke Eskildsen>
Subject Re: Performance of never optimizing
Date Tue, 04 Nov 2008 08:14:21 GMT
On Mon, 2008-11-03 at 23:37 +0100, Justus Pendleton wrote:
> What constitutes a "proper warm up before measuring"?

The simplest way is to do a number of searches before you start
measuring. The first searches are always very slow, compared to later

If you look at and scroll
down to the headline "Warming up" you will see a graph of response-times
for our setup (a 37GB index and logged queries). For SSDs, we reach 2/3
of peak performance after 1,000 queries. For conventional harddisks, we
need 15,000 queries. Your mileage will wary.

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