bugMIT/GNU Scheme - Bugs: bug #26961, imail is very slow handling large...


bug #26961: imail is very slow handling large file folders

Submitted by:  Taylor R. Campbell <riastradh>
Submitted on:  Sun 05 Jul 2009 03:34:45 PM UTC  
Category: imailSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Suboptimal behavior
Status: NonePrivacy: Public
Assigned to: NoneOriginator Name: 
Open/Closed: Open

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Sun 05 Jul 2009 03:34:45 PM UTC, original submission:

Opening a Unix mail file folder with fourteen thousand messages takes well over a minute or two on my 2 GHz MacBook. Closing it, after modifying it, takes well over five minutes. IMAIL should be cleverer, either by keeping a cache on disk or by being clever about incremental parsing of the file, and perhaps mmapping it into memory rather than reading it byte-by-byte. When writing, IMAIL should seek to the part of the file that needs rewriting, which requires recording the messages that are dirty.

Taylor R. Campbell <riastradh>
Project Member


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