[ROOT] Help about memory leaks for CDF offline monitoring!

From: Stephane Tourneur (tourneur@fnal.gov)
Date: Thu Sep 20 2001 - 03:35:02 MEST


Dear "rooters"!

I wrote the Root browser 'SiliBrowser' for the CDF Silicon offline
monitoring, that enables us to display all the histograms of the
Silicon in an organized and friendly way. It was fine as long as the
Silicon histograms had few statistics, but we have experienced big
memory problems with this program since the statistics has become more
important.

There is apparently a memory leak that causes the ROOT browser to
take more and more memory until it saturates (after only three screens of
histograms have been displayed...), apparently because of a lack of
memory. It is obvious by using the unix 'free' instruction that the
Root browser takes almost all the RAM available, what makes it very
very slow to display new screens of histograms.
I'm not expert in memory leak problems at all, and have big difficulties
to solve this problem. Could anybody with some experience ih this
field help please?
This is an important issue because it hinders the works of the CDF offline
monitoring shift a lot.
Thanks in advance for any help!

Stephane



This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:51:00 MET