> On 8 Nov 2022, at 08:52, Jakub Jelinek <ja...@redhat.com> wrote: > > On Tue, Nov 08, 2022 at 07:40:02AM +0000, Sam James wrote: >>> On 8 Nov 2022, at 07:33, Xi Ruoyao <xry...@xry111.site> wrote: >>> I'm wondering if running xz -T0 on different machines (with different >>> core numbers) may produce different compressed data. The difference can >>> cause trouble distributing checksums. >>> >> >> Your question is a good one - xz -T0 produces different results to xz -T1 >> but: >> 1. The tarballs for GCC are only created on one machine and aren't >> created repeatedly then compared with each other wrt mirroring; > > No, that is not the case. > While the snapshots are created on sourceware locally, GCC releases (and > release candidates) are typically created on some RM's local machine.
We've misinterpreted each other. I mean the same tarball isn't then recreated repeatedly and different copies uploaded to mirrors. Obviously different machines may be used at different points.
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