Comment 487 for bug 620074
Revision history for this message
|
|
#487 |
© 2004
Canonical Ltd.
•
Terms of use
•
Data privacy
•
Contact Launchpad Support
•
Blog
•
Careers
•
System status
•
4d1350f
(Get the code!)
(In reply to comment #473)
> I agree with you on the preference-part. It will fix the race-like situation.
> But as I understand, it will not keep the file cache from swapping out a
> single
> page?
Implementing my suggestion wouldn't prevent mmap'd pages from being evicted from RAM to make room for file cache. It would only mean (1) that the file cache wouldn't be allowed to consume pages that are needed to satisfy page faults, and (2) that requests to read pages in from disk (whether from swap (anonymous pages) or from mmap'd files such as executables) would be serviced ahead of any other reads or writes in the disk queue.