Date: Sat, 9 Oct 2021 19:11:41 -0400 From: Zaphod Beeblebrox <zbeeble@gmail.com> To: freebsd-current <freebsd-current@freebsd.org> Subject: Re: Writing large build logs to NFS extremely slow? Message-ID: <CACpH0MeQe4SYeV-qEYjvvv%2BPbQfNbrNBW=9f4yshn2_v6adGjg@mail.gmail.com> In-Reply-To: <20211007021643.bwglyvrswk2nm3fl@nexus.home.palmen-it.de> References: <20211007021643.bwglyvrswk2nm3fl@nexus.home.palmen-it.de>
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--0000000000002d878e05cdf39f94 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Is the NFS mounted filesystem NFS? I've found NFS mounted ZFS has several pathologies like this when there is no SSD cache and/or log vdevs attached. On Wed, Oct 6, 2021 at 10:18 PM Felix Palmen <felix@palmen-it.de> wrote: > Hi all, > > I use a -CURRENT bhyve vm for testing port builds with poudriere. As > this vm is only running when needed, but I want to always have access to > the build logs, I use NFS to mount /usr/local/poudriere/data/logs from > the host. > > I noticed some few ports take ridiculously long to build while barely > using any CPU time at all. On a closer look, that's all ports producing > a lot of compiler (warning) output, e.g. gcc, gnutls, gtk2, =E2=80=A6 > > So I assume appending to a large file via NFS gets slower and slower. Is > there any mount option I could try to fix this? Right now I only have > `nolockd`, I also tried `noncontigwr` which didn't change anything. > > Thinking about alternatives to NFS, are there any news for client-side > 9p virtfs? I found <https://github.com/swills/virtfs-9p-kmod>; which > still builds with a few minor adaptions, but trying to mount a 9p share > freezes the machine. > > Would you suggest a different mailing list to ask? > > BR, Felix > > -- > Dipl.-Inform. Felix Palmen <felix@palmen-it.de> ,.//.......... > {web} http://palmen-it.de {jabber} [see email] ,//palmen-it.de > {pgp public key} http://palmen-it.de/pub.txt // """"""""""" > {pgp fingerprint} A891 3D55 5F2E 3A74 3965 B997 3EF2 8B0A BC02 DA2A > --0000000000002d878e05cdf39f94--
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