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Bug ID 6543070
Synopsis mmap investigation
State 5-Cause Known (Bug is root caused)
Category:Subcategory benchmarks:filebench
Keywords
Reported Against
Duplicate Of
Introduced In
Commit to Fix
Fixed In
Release Fixed
Related Bugs 6347986 , 6567024
Submit Date 5-April-2007
Last Update Date 8-January-2008
Description
delete crap from previous bug, bugster is a pile.
delete crap from previous bug, bugster is a pile.
delete crap from previous bug, bugster is a pile.
Matt was tooling around with filebench and found that it was using mmap.  We should
investigate to see whether this is necessary or not.
Talked to rmc and one discussed was mmap and filebench.  As we thought, we're just
mmap'ing files so we can easily flush them (MS_INVALIDATE / see fileset_freemem() )
after we've created all the files and are ready to do the real run.

We can ditch mmap and just put the file system caching in the fs_flush script
(that is, unmount/ remount).  This is much like what we do for ZFS today (export /import
the pool).
Work Around
N/A
Comments
N/A