> On Apr 29, 2020, at 4:49 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > > On Wed, Apr 29, 2020 at 02:46:24PM +0800, Huaixin Chang wrote: >> Move building of fast lookup table from boot to sorttable tool. This saves us >> 6380us boot time on Intel(R) Xeon(R) CPU E5-2682 v4 @ 2.50GHz with cores. > > And what does it add to the build time? It takes a little more than 7ms to build fast lookup table in sorttable on the same CPU. And it is on the critical path.
