[Bug libc/11431] New: consider madvise for ld.so

["fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

Over the years, there have been several suggestions that
ld.so use madvise(...WILLNEED) after mmapping a DT_NEEDED
shared library to encourage more aggressive prefetching,
which has been measured to help with certain large libraries
such as firefox's.  suse carries a glibc patch for this, and
other projects have hacks in them to approximate this policy.

After a brief bugzilla/google search, I haven't heard any
official disposition of this heuristic.  If it is known to be
a bad idea, perhaps we can record the reasons for that here.

-- 
           Summary: consider madvise for ld.so
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: fche at redhat dot com
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=11431

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