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[Fwd: Re: (ITS#4108) LWL causing core dumps in HEAD]

I note that the code in HEAD now is noticably slower than RE23 or RE22, and far less consistent.

Using the slapd-bind program against RE22 or RE23 I can consistently get 10000 binds across a 100Mbit ethernet in 7-8 seconds. On localhost it only takes 2.6 seconds.

Using HEAD, localhost takes 3-5 seconds. Across 100Mbit ethernet the time varies from as low as 10 seconds to as much as 45 seconds. (And there are only 3 machines on this network, no other activity.)

Some of the slowdowin is probably due to the double pool_submit that occurs for read events...

-------- Original Message --------
Subject: 	Re: (ITS#4108) LWL causing core dumps in HEAD
Date: 	Sat, 29 Oct 2005 02:21:58 GMT
From: 	hyc@symas.com
To: 	openldap-its@OpenLDAP.org



quanah@stanford.edu wrote:
--On Friday, October 28, 2005 3:09 PM -0700 Howard Chu <hyc@symas.com> wrote:

Howard Chu wrote:
Using this slight modification of Jason's bindstress patch in ITS#3855
I can reproduce the crash quite rapidly. On my system (Linux x86_64)
it tends to crash much sooner using epoll than using select, but in
both cases it is the same assert failing.

It appears that the problem existed before. I was able to reproduce the
same crash against 2.3.11 after running the bindstress script for several
minutes. I.e., it doesn't happen as quickly in 2.3.11, but it eventually
hits the same assert.

You are filling me with cheer... :P

I think we need a 2.3.12 release soon anyway. ;) 

--
 -- 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/






--
 -- 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/