[Bug 3007 (linux mm)] New - userspace-accessible VM pressure indications

[bugzilla-daemon@distro.conectiva.com.br]

http://distro.conectiva.com.br/bugzilla/show_bug.cgi?id=3007

           Summary: userspace-accessible VM pressure indications
           Product: Linux kernel MM
           Version: 2.5 (beta)
          Platform: All
               URL:
        OS/Version: Linux
            Status: UNCONFIRMED
 Status Whiteboard:
          Keywords:
        Resolution:
          Severity: enhancement
          Priority: P3
         Component: linux mm
        AssignedTo: linux-mm-bugs@nl.linux.org
        ReportedBy: rahul@rice.edu


We have /proc/loadavg for determining CPU load for userspace so why not /proc/vmload for determining VM pressure from userspace? It would greatly benefit garbage-collected systems, for example, so that they can be more aggressive about cleaning up garbage when there is more vm pressure, but can allow for better performance when vm pressure is low.
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