Dear coreboot folks,
Am Donnerstag, den 24.04.2014, 23:39 +0200 schrieb Paul Menzel: > in #coreboot on <irc.freenode.net> Stefan mentioned that link time > optimization (LTO) [1] might yield some speed improvements for coreboot > as the resulting firmware image might be smaller and therefore it takes > less time to read it from flash. > > As LTO has been greatly improved in GCC 4.9.0 and is all over the news, > has somebody already experimented with LTO or created patches or tools > for testing? > > Is somebody able to share conclusions already? That’d be very > interesting. looking further in April and May 2011 Scott Duplichan even sent a patch to add an option to enable LTO [2][3], but unfortunately it was not submitted. Back then on AMD Persimmon with SeaBIOS as payload the boot time was reduced from 690 ms to 640 ms. (Fun fact: UEFI firmware took 10 s on that board.) Thanks, Paul > [1] http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html > (search for `lto`) [2] http://www.coreboot.org/pipermail/coreboot/2011-April/064859.html [3] http://www.coreboot.org/pipermail/coreboot/2011-May/064874.html
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