Messages in this thread | | | Date | Mon, 2 Dec 2019 11:32:48 +0100 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH v5 0/7] Speed booting by sorting ORC unwind tables at build time |
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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@infradead.org>
Who it going to apply this? I suppose we could take it through -tip, like we do with all x86 and objtool related bits.
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