On Thu, Nov 28, 2019 at 07:01:59PM +0800, Shile Zhang wrote: > This series refactored the original sortextable tools, add ORC unwind > tables sort at build time. > > To sort the ORC unwind tables(.orc_unwind & .orc_unwind_ip) can save > about 100ms in my test ENV (2C4G VM w/ Xeon 2.5GHz CPU). > It costs about 30ms sort by new sorttable tool. IIRC from your previous emails the new build-time sort is actually shorter than that, so even for single build+run scenarios we win. The code looks good to me, so: Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Who it going to apply this? I suppose we could take it through -tip, like we do with all x86 and objtool related bits.