On Sat, Aug 17, 2024 at 01:08:34PM GMT, Guo Ren wrote: ... > > So I have just checked the size of the jump table section: > > > > * defconfig: > > > > - ticket: 26928 bytes > > - combo: 28320 bytes > > > > So that's a ~5% increase. > > > > * ubuntu config > > > > - ticket: 107840 bytes > > - combo: 174752 bytes > > > > And that's a ~62% increase. > The size of the jump table section has increased from 5% to 62%. I > think some configuration triggers the jump table's debug code. If it's > not a debugging configuration, that's a bug of the Ubuntu config. And I just remembered we wanted to check with CONFIG_CC_OPTIMIZE_FOR_SIZE Thanks, drew > > > > > This is the ELF size difference between ticket and combo spinlocks: > > > > * ticket: 776915592 bytes > > * combo: 786958968 bytes > > > > So that's an increase of ~1.3% on the ELF. > > > > And the .text section size: > > > > * ticket: 12290960 bytes > > * combo: 12366644 bytes > > > > And that's a ~0.6% increase! > > > > Finally, I'd say the impact is very limited :) > > > > Thanks, > > > > Alex > > > >
