Re: slapo-accesslog impact on performance

[Quanah Gibson-Mount <quanah@stanford.edu>]

--On Monday, December 05, 2005 12:01 PM -0500 Samuel Tran <stran@amnh.org> 
wrote:

> Hi All,
>
> I have a question on the slapo-accesslog in OL 2.3.13.
>
> Does it overlay impact slapd performance when turned on?

slapo-accesslog forces writes to a server to be single threaded.  I only 
put it in place on my master, where there are only two applications that 
ever write to the master.  If you have a large number of write agents, it 
could severely impact performance.  It also has the normal impacts of any 
other database backend -- It creates log files and has to have a database 
to write to, so as much as that affects IO and resources, it'll affect the 
server performance.

--Quanah

--
Quanah Gibson-Mount
Principal Software Developer
ITSS/Shared Services
Stanford University
GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html