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 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-binutils