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Re: HEAD and connection speed

To: Quanah Gibson-Mount <quanah@symas.com>
Subject: Re: HEAD and connection speed
From: Howard Chu <hyc@symas.com>
Date: Mon, 16 Oct 2006 02:49:08 -0700
Cc: openldap-devel@openldap.org
In-reply-to: <35FFF34380F2B1361D4E6100@SW-90-717-287-3.stanford.edu>
References: <35FFF34380F2B1361D4E6100@SW-90-717-287-3.stanford.edu>
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Quanah Gibson-Mount wrote:

I've been twiddling around with HEAD, since it supports BDB 4.5 and OL 2.3 doesn't, and noticed that when I do speed tests, HEAD is 66% slower than 2.3 (+ my patches from HEAD for connections). This seems interesting to me, since my connection code is largely from HEAD. In 2.3, I get 15,000+ auths/second on my 64 bit test systems, but with straight HEAD code, I only get 5,000 auths/second.

In both cases, the lightweight dispatcher code is enabled. Any thoughts on what else may be affecting HEAD? The configuration is very simple, just a small 250k bdb database.

I'm not seeing any slowdown against back-null, so it would seem to be BDB or back-bdb related.

--
  -- Howard Chu
  Chief Architect, Symas Corp.  http://www.symas.com
  Director, Highland Sun        http://highlandsun.com/hyc
  OpenLDAP Core Team            http://www.openldap.org/project/

Follow-Ups:
- Re: HEAD and connection speed
  - From: Howard Chu <hyc@symas.com>

References:
- HEAD and connection speed
  - From: Quanah Gibson-Mount <quanah@symas.com>

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