On 2021-01-20 Sebastian Andrzej Siewior wrote: > On 2021-01-20 00:37:06 [+0100], Sebastian Andrzej Siewior wrote: > > So this is better than crc64 and close to none while doing > > something ;) > > xz -tv -T0 with crc64 reports: > > 100 % 10,2 GiB / 40,0 GiB = 0,255 1,1 GiB/s 0:35 > > and the same archive with xxh3: > > 100 % 10,2 GiB / 40,0 GiB = 0,255 1,1 GiB/s 0:34 > > which looks like it is not worth the trouble.
If there were a fast algorithm in .xz, then it would be worth the trouble. Having such an algorithm was in the early plans but so were a few other nice things but many never materialized. I will look at the SHA-256 patch later. There are unusually many things in the queue of XZ-related things. -- Lasse Collin | IRC: Larhzu @ IRCnet & Freenode
