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[bug #32447] Wishlist: fadvise()

From: Alan Brown
Subject: [bug #32447] Wishlist: fadvise()
Date: Sun, 13 Feb 2011 03:38:17 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-GB; rv: Gecko/20101218 Ubuntu/10.10 (maverick) Namoroka/3.6.14pre


                 Summary: Wishlist: fadvise()
                 Project: findutils
            Submitted by: stoatwblr
            Submitted on: Sun Feb 13 03:38:16 2011
                Category: find
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Alan Brown
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: None
           Fixed Release: None



I've discovered that find is causing pagecache poisoning on systems with
large filesystems (millions of files).

This can probably be mitigated by using fadvise() to tell the OS that
files/directory data doesn't need to be cached.

As far as I can tell it isn't used in any release version of find.

Can the devs look at incorporating this please?


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