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Date:      Wed, 03 Mar 2021 09:08:31 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 253968] 13.0-BETA4: UFS with journaled soft-updates is three times SLOWER than before
Message-ID:  <bug-253968-227-Qt2pQvSls6@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-253968-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-253968-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253968

--- Comment #7 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Mark Millard from comment #6)

[I use -noatime mounts, by the way.]

Given the reports I got a surprise booting the OverDrive 1000
via 13.0-BETA4 and trying the operations on the SSD (not
the boot media this time), evidence of definite changes from
the main (14) vintage that I have things at for normal booting:

# time -l make extract
=3D=3D=3D>   firefox-85.0.2,2 depends on file: /usr/local/sbin/pkg - found
=3D=3D=3D> Fetching all distfiles required by firefox-85.0.2,2 for building
=3D=3D=3D>  Extracting for firefox-85.0.2,2
=3D> SHA256 Checksum OK for firefox-85.0.2.source.tar.xz.
       93.39 real        55.46 user        34.47 sys
     76576  maximum resident set size
        30  average shared memory size
         4  average unshared data size
       128  average unshared stack size
     26460  page reclaims
         0  page faults
         0  swaps
     15569  block input operations
       994  block output operations
        16  messages sent
        14  messages received
         0  signals received
     16752  voluntary context switches
      1192  involuntary context switches

Vastly fewer block output operations (and less time).

# time -l rm -fr work
       12.74 real         0.29 user         7.80 sys
      3920  maximum resident set size
         8  average shared memory size
         4  average unshared data size
       128  average unshared stack size
       588  page reclaims
         0  page faults
         0  swaps
       644  block input operations
       360  block output operations
         0  messages sent
         0  messages received
         0  signals received
      1093  voluntary context switches
       337  involuntary context switches

So even if there are issues still, apparently some have
been taken care of.

For reference:

# uname -apKU
FreeBSD generic 13.0-BETA4 FreeBSD 13.0-BETA4 #0
releng/13.0-n244592-e32bc253629: Fri Feb 26 08:02:53 UTC 2021=20=20=20=20
root@releng1.nyi.freebsd.org:/usr/obj/usr/src/arm64.aarch64/sys/GENERIC  ar=
m64
aarch64 1300139 1300139

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