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Re: Performance of never optimizing

Subject: Re: Performance of never optimizing
From: Toke Eskildsen
Date: Tue, 4 Nov 2008 09:14:21 +0100
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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