Date: Tue, 5 Sep 2023 10:36:49 -0700 From: Mark Millard <marklmi@yahoo.com> To: Cy Schubert <Cy.Schubert@cschubert.com>, Alexander Motin <mav@FreeBSD.org> Cc: Glen Barber <gjb@freebsd.org>, Current FreeBSD <freebsd-current@freebsd.org>, FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>, freebsd-arch <freebsd-arch@freebsd.org>, Martin Matuska <mm@freebsd.org> Subject: Re: Possible regression in main causing poor performance Message-ID: <D64C0881-78F7-4917-9C6C-4FDDDE456147@yahoo.com> In-Reply-To: <20230905155812.D746B71@slippy.cwsent.com> References: <8A267B4A-1B7B-4D61-AA57-8E3156470617@yahoo.com> <1B47E578-693D-4690-A577-947E8C9140B5@yahoo.com> <1C3E6B34-2937-46C6-862E-5B988B8A3A43@yahoo.com> <20230830184426.GM1219@FreeBSD.org> <20230830204406.24FDC7E@slippy.cwsent.com> <20230905155812.D746B71@slippy.cwsent.com>
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On Sep 5, 2023, at 08:58, Cy Schubert <Cy.Schubert@cschubert.com> wrote: > In message <20230830204406.24FDC7E@slippy.cwsent.com>, Cy Schubert = writes: >> In message <20230830184426.GM1219@FreeBSD.org>, Glen Barber writes: >>>=20 >>>=20 >>> On Mon, Aug 28, 2023 at 06:06:09PM -0700, Mark Millard wrote: >>>> Has any more been learned about this? Is it still an issue? >>>> =3D20 >>>=20 >>> I rebooted the machine before the ALPHA3 builds with no other = changes, >>> and the overall times for 14.x builds went back to normal. I do not >>> like to experiment with builders during a release cycle, but as we = are >>> going to have 15.x snapshots available moving forward, I will not = reboot >>> that machine next week in hopes to get some useful data. >>>=20 >>> If my memory serves correctly, mm@ has a pending ZFS import from >>> upstream for both main and stable/14 pending. Whether or not that = will >>> resolve any issue here, I do not know. >>=20 >> Two of my poudriere builder machines have experienced different = panics=20 >> since the ZFS import two days ago. The problems have been documented = on the=20 >> -current list. >=20 > Just an update. >=20 > The three pull requests amotin@ pointed to did resolve all my = problems. A=20 > subsequent update which included the latest ZFS commits worked just as=20= > well, without any new regressions. AFAIAC this problem has been = resolved. >=20 > The random email corruptions have also been resolved. >=20 >=20 > --=20 > Cheers, > Cy Schubert <Cy.Schubert@cschubert.com> > FreeBSD UNIX: <cy@FreeBSD.org> Web: https://FreeBSD.org > NTP: <cy@nwtime.org> Web: https://nwtime.org >=20 > e^(i*pi)+1=3D0 >=20 >=20 >=20 >=20 > =C2=9C9O8 The just-above quoted line looks like a corruption to me. Otherwise, I'm just reporting more evidence from separate testing on amd64 . . . I will say that my separate-install/boot environment 10hr, 6366 port->package poudriere bulk -a prefix test of: # uname -apKU FreeBSD amd64-ZFS 15.0-CURRENT FreeBSD 15.0-CURRENT amd64 1500000 #118 = main-n265152-f49d6f583e9d-dirty: Mon Sep 4 14:26:56 PDT 2023 = root@amd64_ZFS:/usr/obj/BUILDs/main-amd64-nodbg-clang/usr/main-src/amd64.a= md64/sys/GENERIC-NODBG amd64 amd64 1500000 1500000 did not show any deadlocks. The only oddity that I've noticed is the 1 extra message shown in: . . . [00:03:25] [32] [00:00:00] Builder starting [00:03:43] [01] [00:00:18] Finished print/indexinfo | indexinfo-0.3.1: = Success [00:03:43] [01] [00:00:00] Building devel/gettext-runtime | = gettext-runtime-0.22_1 [00:05:20] [01] [00:01:37] Finished devel/gettext-runtime | = gettext-runtime-0.22_1: Success 23/.p/cleaning/rdeps/gettext-runtime-0.22_1/chemtool-1.6.14_4 copy: open = failed: No such file or directory [00:05:23] [01] [00:00:00] Building devel/gmake | gmake-4.3_2 [00:05:55] [02] [00:02:30] Builder started . . . I'm comfortable moving my normal environments forward to include this latest import of openzfs. The effort established a separate environment set up for doing testing of jumping to/past an openzfs import(s) in main. Too many recent imports have dangerous-to-the-file-system and/or had deadlocking issues for me to simply update to include them without first testing on separate media that does not have to stay operational. =3D=3D=3D Mark Millard marklmi at yahoo.com
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