Date: Thu, 19 Oct 2023 07:35:53 +0200 From: "Piotr P. Stefaniak" <pstef@freebsd.org> To: Kevin Bowling <kevin.bowling@kev009.com> Cc: freebsd-current@freebsd.org, freebsd-stable@freebsd.org Subject: Re: freebsd-update 12.3 to 14.0RC1 takes 12-24 hours (block cloning regression) Message-ID: <ZTDAOTR0663ljLyi@freefall.freebsd.org> In-Reply-To: <CAK7dMtBWD_-zgBVGywir0OdQ8btL=PsYtz5vCaWuk__heOqTzw@mail.gmail.com> References: <CAK7dMtBWD_-zgBVGywir0OdQ8btL=PsYtz5vCaWuk__heOqTzw@mail.gmail.com>
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On 2023-10-17 09:40:37, Kevin Bowling wrote: >The flash SLOG system took around 12 hours to complete freebsd-update >from 13.2 to 14.0-RC1. The system without the SLOG took nearly 24 >hours. This was the result of ~50k patches, and ~10k files from >freebsd-update and a very pathological 'install' command performance. >I spoke with mjg about this and because my pools do not have block >cloning enabled, copy_file_range turns into a massive pessimization in >'install'. I reported on IRC what I think is the same issue, except in my case this was on an MMC and took many days (I stopped paying attention after 3 days). Piotr
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