The dynamic linker memset(0)ing .bss causes an extra pagefault due to the
kernel's COW. For firefox 10% of our cold startup page faults are caused by
memset(0)ing .bss once for every library.
One could stick prelink data, .gnu.* metadata, etc infront of .bss to minimize
executable bloat.
--
Summary: Add an option to page-align .bss
Product: binutils
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: tglek at mozilla dot com
CC: bug-binutils at gnu dot org
http://sourceware.org/bugzilla/show_bug.cgi?id=11618
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