196607 - rebuilding of summary file saturates CPU on large mail folders

Status: RESOLVED DUPLICATE of bug 172786

(MailNews Core :: Database, defect)

Description

[Mike Coppins]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030210
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030210

Not really important, but I encountered this problem when I encountered the
situation described in the last bug I reported, 196601.

On mail folders (so far I've found, anyway) with over 2500 emails in, the CPU
gets saturated (to the point of interrupting other processes) while Mail
rebuilds the summary file for that mail folder.

Reproducible: Always

Steps to Reproduce:
I don't know how to force a summary file rebuild safely, so I can't just
reproduce the problem at any time, but this problem happened on every occasion
the summary file had to be rebuilt, on large mail folders with >2500 emails in.
Actual Results:  
CPU usage went to 100%, other apps running, including Winamp 2.81 froze during
the rebuilding of the summary file.  (they came back fine afterwards, but
probably irrelevant)

Comment 1

[Mike Coppins]

Confirming again with Mozilla 1.3 release.

Comment 2

[David :Bienvenu]

marking dup of 172786 - I hope the fix for that will ameliorate this problem

*** This bug has been marked as a duplicate of 172786 ***