[Dazuko-devel] Performance enhancements

[S Wade]

Hi All,

I've recently done some work integrating dazuko with an anti-virus scanner 
and I implemented some enhancements I'd like to submit for consideration.

I figured that searching the list of files to be scanned on close-modified 
could affect performance, so I altered the search to move files that have 
already been modified to the end of the list. So when searching to see if a 
file needs to be indicated as modified, the search can be terminated as soon 
as the first modified file entry is encountered. I ran some tests and found 
that it enhanced performance considerably; how much so is highly dependent 
on how many files are simultaneously open and whether or not the scan on 
close-modified is used.

I think that we could also enhance performance by offering an optional 
kernel patch that would allow us to store a pointer to the dazuko file 
information in the kernel's file table. That would eliminate searching the 
list completely.

I'm new to open source, so I'm not exactly sure how to procede or even if 
there is interest in my ideas.

Sincerely,
Swade




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