Date: Mon, 17 Oct 2022 00:07:00 +0200 From: Mateusz Guzik <mjguzik@gmail.com> To: void <void@f-m.fm> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: zfs with operations like rm -rf takes a very long time recently Message-ID: <CAGudoHGtMWcvhzKuNdLNSpcS8qCUnJh768GOdv1ce1GcUJH7iQ@mail.gmail.com> In-Reply-To: <76faacf1-6307-47af-adb6-200486d63137@app.fastmail.com> References: <f25d069a-2ee7-491a-a5ef-a14b973c12e2@app.fastmail.com> <CAGudoHGsXT2C74bzDDzmB3U5KS3vMBarGJ%2BFd6nXxUyswdZfpQ@mail.gmail.com> <76faacf1-6307-47af-adb6-200486d63137@app.fastmail.com>
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On 10/17/22, void <void@f-m.fm> wrote: > On Sun, 16 Oct 2022, at 19:55, Mateusz Guzik wrote: > >> Just in case, can you test with this: sysctl >> vfs.zfs.per_txg_dirty_frees_percent=5 >> >> As in, can you repeat the test multiple times, flipping >> vfs.zfs.per_txg_dirty_frees_percent between 5 and 30. > > After setting this and starting the rm -rf, it completed!!! before I had > time to set up the other tests :D > > Maybe this'll solve the problem? > No, it was flipped because the smaller value was causing a performance problem the other way elsewhere. This needs to be investigated. > > -- Mateusz Guzik <mjguzik gmail.com>
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