--On Friday, October 16, 2009 9:24 AM -0700 Bill MacAllister whm@stanford.edu wrote:

--On Friday, October 16, 2009 06:58:44 AM -0700 Quanah Gibson-Mount quanah@zimbra.com wrote:

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--On Friday, October 16, 2009 10:39 AM +0000 whm@stanford.edu wrote:

...

And in researching the problem I see that this is a well trodden path. I found a particularly useful thread from 2006 entitled "better malloc strageties" in the OpenLDAP archives. As I result I packaged up libhoard, installed it, and re-ran the valgrind test. The short test showed no memory leaks. I will perform more extensive tests, but this appears to have fixed the problem. Thanks for your work, then and now.

You were running slapd without hoard or tcmalloc???? That was a basic requirement I put into place for Stanford ages ago.

--Quanah

The desire was to run as close to stock debian was we could. The libhoard package was dropped from debian with the comment "I no longer use this software hence I orphan it." I took that to mean that it was not maintained any more which was wrong. The upstream source appears to be actively maintained.

I was curious if you had an opinion about tcmalloc versus hoard?

I switched to tcmalloc due to licensing issues. You can read Howard's presentation on the differences in how they behave (at some point in the past, tcmalloc has had a lot of development since then) at:

http://www.openldap.org/pub/hyc/scale2007.pdf

--Quanah

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Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc -------------------- Zimbra :: the leader in open source messaging and collaboration