main 16 and 15.0-ALPHA4: using a USB3 context gets extensive "flswai" STATE time during poudriere builds (UFS context happens to be in use); more

From: Mark Millard <marklmi_at_yahoo.com>
Date: Mon, 29 Sep 2025 20:01:10 UTC
An example is during the cpdup activities when multiple happen
in overlappingtime frames:

. . .
29502     0 root          0    0  20976Ki    4832Ki biowr    2   0:00   0.06% cpdup -i0 -s0 -f -x ref 01
29479     0 root          0    0  20976Ki    4836Ki biord    7   0:01   0.75% cpdup -i0 -o ref 32
29467     0 root          0    0  20976Ki    4824Ki getblk  26   0:01   0.63% cpdup -i0 -o ref 31
29429     0 root          1    0  20976Ki    4768Ki flswai  23   0:01   0.61% cpdup -i0 -o ref 30
29414     0 root          0    0  20976Ki    4780Ki flswai  28   0:01   0.70% cpdup -i0 -o ref 29
29396     0 root         59    0  16872Ki    4948Ki wait     9   0:00   0.00% /usr/local/libexec/poudriere/sh -e -o pipefail /usr/local/share/poudriere/bulk.sh -jofficial-amd64 -c -f /usr/home/root/o
29382     0 root          0    0  20976Ki    4876Ki flswai  15   0:01   0.95% cpdup -i0 -o ref 28
29353     0 root         59    0  16872Ki    4948Ki wait     7   0:00   0.00% /usr/local/libexec/poudriere/sh -e -o pipefail /usr/local/share/poudriere/bulk.sh -jofficial-amd64 -c -f /usr/home/root/o
29326     0 root          0    0  20976Ki    4804Ki biord    5   0:01   0.44% cpdup -i0 -o ref 27
29308     0 root          0    0  20976Ki    4816Ki biord    2   0:01   0.77% cpdup -i0 -o ref 26
29307     0 root         59    0  16872Ki    4948Ki wait     5   0:00   0.00% /usr/local/libexec/poudriere/sh -e -o pipefail /usr/local/share/poudriere/bulk.sh -jofficial-amd64 -c -f /usr/home/root/o
29273     0 root         59    0  16872Ki    4944Ki wait     4   0:00   0.00% /usr/local/libexec/poudriere/sh -e -o pipefail /usr/local/share/poudriere/bulk.sh -jofficial-amd64 -c -f /usr/home/root/o
29262     0 root          0    0  20976Ki    4768Ki flswai  20   0:01   0.76% cpdup -i0 -o ref 25
29233     0 root          0    0  20976Ki    4784Ki flswai   3   0:01   0.71% cpdup -i0 -o ref 24
29232     0 root         59    0  16872Ki    4944Ki wait     6   0:00   0.00% /usr/local/libexec/poudriere/sh -e -o pipefail /usr/local/share/poudriere/bulk.sh -jofficial-amd64 -c -f /usr/home/root/o
. . .

It took over 6 minutes for the 32 builders to finish. (Normal is
under 2 seconds.)


Also, later activity gets extensive "rename" STATE time, again, at least
some of it during cpdup activity:

. . .
80055     0 root         59    0  16872Ki    4968Ki wait    31   0:00   0.00% sh: poudriere[official-amd64-default][06]: build_pkg (boost-jam-1.88.0) (sh)
78347     0 root          0    0  20976Ki    4624Ki rename   0   0:00   1.05% cpdup -i0 -s0 -f -x ref 31
78331     0 root         59    0  16872Ki    4960Ki wait    18   0:00   0.00% sh: poudriere[official-amd64-default][31]: build_pkg (lua53-5.3.6_1) (sh)
77930     0 root          0    0  20976Ki    4636Ki rename  29   0:00   1.02% cpdup -i0 -s0 -f -x ref 30
77912     0 root         59    0  16872Ki    4960Ki wait    25   0:00   0.00% sh: poudriere[official-amd64-default][30]: build_pkg (libsunacl-1.0.1_1) (sh)
75398     0 root          0    0  20976Ki    4628Ki rename   2   0:00   0.99% cpdup -i0 -s0 -f -x ref 16
75335     0 root         59    0  16872Ki    4960Ki wait    20   0:00   0.00% sh: poudriere[official-amd64-default][16]: build_pkg (iwmbt-firmware-20250410) (sh)
75324     0 root          0    0  20976Ki    4628Ki rename  24   0:00   1.04% cpdup -i0 -s0 -f -x ref 19
75308     0 root         59    0  16872Ki    4960Ki wait    24   0:00   0.00% sh: poudriere[official-amd64-default][19]: build_pkg (lua54-5.4.8) (sh)
74963     0 root          0    0  20976Ki    4624Ki rename   4   0:00   1.05% cpdup -i0 -s0 -f -x ref 32
74922     0 root         59    0  16872Ki    4960Ki wait    26   0:00   0.00% sh: poudriere[official-amd64-default][32]: build_pkg (lzo2-2.10_1) (sh)
72722     0 root          0    0  20976Ki    4776Ki rename   1   0:00   1.28% cpdup -i0 -s0 -f -x ref 15
72647     0 root         59    0  16872Ki    4960Ki wait    26   0:00   0.00% sh: poudriere[official-amd64-default][15]: build_pkg (indexinfo-0.3.1_1) (sh)
71967     0 root          0    0  20976Ki    4856Ki rename  30   0:00   1.48% cpdup -i0 -s0 -f -x ref 25
71917     0 root         59    0  16872Ki    4960Ki wait     1   0:00   0.00% sh: poudriere[official-amd64-default][25]: build_pkg (mpg123-1.33.2) (sh)
71629     0 root          0    0  20976Ki    4828Ki rename  31   0:00   1.61% cpdup -i0 -s0 -f 
. . .

But I'll also see such on c compiles, ld commands, etc. I've
not seen rename for pkg-static but I have seen flswai for it.

The system spends lots of time 95%+ idle from the wait
activities.

I see such directly booted from the USB3 media (a 15.0-ALPHA4
context on UFS media) and when using that media via chroot
from both ZFS and UFS boots that are not USB based. The ZFS
and UFS boots do not show the behavior with the normal
non-USB3 media used instead.

The system in use is an AMD 7950X3D with 32 FreeBSD cpus,
192 GiBytes of RAM. main 16 booting for non-USB boots
and 15.0-ALPHA4 boots for the USB3 boots. kernel and
world are via official pkgbase distribution installs:
it is not a personal build of the kernel or world.


More rename and flswai examples:

. . .
39320   183 nobody       59    0 171676Ki  160576Ki rename  29   0:00   2.17% cc -D_BLD_DLL -fPIC -D_BLD_ast -Os -Wno-unused-value -Wno-parentheses -Wno-logical-op-parentheses -fno-strict-aliasing -I
62772   183 nobody       59    0  14376Ki    3372Ki wait    25   0:00   0.04% mamake -C lib/libast install
12602   183 nobody       59    0  14376Ki    3072Ki wait    17   0:00   0.00% mamake -r */* install
12600   183 nobody       59    0  14376Ki    3076Ki wait    22   0:00   0.00% mamake install
12596   183 nobody        0    0  14068Ki    2688Ki piperd  10   0:00   0.01% tee -a /wrkdirs/usr/ports/shells/ksh/work/ksh-1.0.10/arch/freebsd15.i386-64/lib/package/gen/make.out
 8980   183 nobody       59    0  14744Ki    3732Ki wait     6   0:00   0.00% /bin/sh bin/package flat make
 8977   183 nobody       59    0  14744Ki    3436Ki wait     3   0:00   0.00% /bin/sh -e /tmp/makelMk4B8
 8929   183 nobody       59    0  14288Ki    3872Ki wait     4   0:00   0.00% /usr/bin/make -C /usr/ports/shells/ksh build
39327   179 nobody       59    0 105680Ki   93264Ki biowr    2   0:00   0.61% /usr/bin/ld --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both --enable-new-dtags -o test /usr/lib/crt
39325   179 nobody       59    0 165928Ki  155088Ki wait    17   0:00   1.00% /usr/bin/cc -o test ../test.o
39294   179 nobody       59    0  14744Ki    3448Ki wait    10   0:00   0.01% sh /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/lib/probe/C/make/probe /usr/bin/cc PREROOT='' UNIVER
39293   179 nobody       59    0  15264Ki    3704Ki piperd  19   0:00   0.00% /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/lib/probe/probe C make /usr/bin/cc
39291   179 nobody       59    0  16344Ki    4960Ki wait    10   0:00   0.00% /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/bin/nmake --ignorelock --keepgoing --errorid=lib/libast
39290   179 nobody       59    0  14744Ki    3444Ki wait    12   0:00   0.00% sh /dev/fd/3
39258   179 nobody       59    0  14744Ki    3452Ki piperd   0   0:00   0.00% sh /dev/fd/3
37014   179 nobody        0    0  14068Ki    2692Ki piperd  30   0:00   0.00% tee -a /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/lib/package/gen/make.out
37013   179 nobody        0    0  16728Ki    5320Ki select  14   0:00   0.00% /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/bin/nmake -k -K recurse believe nmake
32949   179 nobody       13    0  14744Ki    4136Ki wait    31   0:00   0.00% /bin/sh bin/package flat make ksh93
32948   179 nobody       59    0  14744Ki    3444Ki wait    19   0:00   0.00% /bin/sh -e /tmp/makeW36tmB
32940   179 nobody       59    0  14288Ki    3892Ki wait    21   0:00   0.00% /usr/bin/make -C /usr/ports/shells/ksh93 build
32453     0 root          0    0  20976Ki    5020Ki rename  22   0:03   0.47% cpdup -i0 -s0 -f -x ref 26
32420     0 root          0    0  20976Ki    5024Ki rename  13   0:03   0.50% cpdup -i0 -s0 -f -x ref 11
32358     0 root          0    0  20976Ki    5068Ki rename  26   0:03   0.53% cpdup -i0 -s0 -f -x ref 20
32333     0 root         59    0  16872Ki    4960Ki wait    11   0:00   0.00% sh: poudriere[official-amd64-default][26]: build_pkg (linux-c7-numactl-libs-2.0.12_1) (sh)
32313     0 root         59    0  16872Ki    4960Ki wait     9   0:00   0.00% sh: poudriere[official-amd64-default][20]: build_pkg (linux-c7-libaio-0.3.109) (sh)
32301     0 root         59    0  16872Ki    4960Ki wait    19   0:00   0.00% sh: poudriere[official-amd64-default][11]: build_pkg (linux-c7-dosfstools-3.0.20) (sh)
13808     0 root          0    0  20976Ki    4984Ki rename   4   0:03   0.57% cpdup -i0 -s0 -f -x ref 19
12316     0 root          0    0  20976Ki    5072Ki biowr   27   0:03   0.56% cpdup -i0 -s0 -f -x ref 13
12283     0 root          0    0  20976Ki    5068Ki rename   5   0:03   0.53% cpdup -i0 -s0 -f -x ref 01
12277     0 root          0    0  20976Ki    5068Ki rename  28   0:03   0.54% cpdup -i0 -s0 -f -x ref 14
12096     0 root         59    0  16872Ki    4960Ki wait    27   0:00   0.00% sh: poudriere[official-amd64-def
. . .


. . .
39927   183 nobody       59    0 171676Ki  160396Ki flswai  13   0:00   2.03% cc -D_BLD_DLL -fPIC -D_BLD_ast -Os -Wno-unused-value -Wno-parentheses -Wno-logical-op-parentheses -fno-strict-aliasing -I
62772   183 nobody       59    0  14376Ki    3400Ki wait     3   0:00   0.06% mamake -C lib/libast install
12602   183 nobody       59    0  14376Ki    3072Ki wait    17   0:00   0.00% mamake -r */* install
12600   183 nobody       59    0  14376Ki    3076Ki wait    22   0:00   0.00% mamake install
12596   183 nobody        0    0  14068Ki    2688Ki piperd  28   0:00   0.01% tee -a /wrkdirs/usr/ports/shells/ksh/work/ksh-1.0.10/arch/freebsd15.i386-64/lib/package/gen/make.out
 8980   183 nobody       59    0  14744Ki    3732Ki wait     6   0:00   0.00% /bin/sh bin/package flat make
 8977   183 nobody       59    0  14744Ki    3436Ki wait     3   0:00   0.00% /bin/sh -e /tmp/makelMk4B8
 8929   183 nobody       59    0  14288Ki    3872Ki wait     4   0:00   0.00% /usr/bin/make -C /usr/ports/shells/ksh build
39924   179 nobody       59    0 125140Ki   95572Ki flswai  20   0:00   0.60% /usr/bin/ld --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both --enable-new-dtags -o dynamic.exe /usr/
39924   179 nobody       59    0 125140Ki   95572Ki uwait    0   0:00   0.01% /usr/bin/ld --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both --enable-new-dtags -o dynamic.exe /usr/
39924   179 nobody       59    0 125140Ki   95572Ki uwait   13   0:00   0.01% /usr/bin/ld --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both --enable-new-dtags -o dynamic.exe /usr/
39924   179 nobody       59    0 125140Ki   95572Ki uwait   16   0:00   0.01% /usr/bin/ld --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both --enable-new-dtags -o dynamic.exe /usr/
39924   179 nobody       59    0 125140Ki   95572Ki uwait   27   0:00   0.01% /usr/bin/ld --eh-frame-hdr -dynamic-linker /libexec/ld-elf.so.1 --hash-style=both --enable-new-dtags -o dynamic.exe /usr/
39923   179 nobody       59    0 165928Ki  155092Ki wait     0   0:00   1.00% /usr/bin/cc -o dynamic.exe -dynamic dynamic.o
39294   179 nobody       59    0  14744Ki    3464Ki wait     9   0:00   0.02% sh /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/lib/probe/C/make/probe /usr/bin/cc PREROOT='' UNIVER
39293   179 nobody       59    0  15264Ki    3704Ki piperd  19   0:00   0.00% /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/lib/probe/probe C make /usr/bin/cc
39291   179 nobody       59    0  16344Ki    4960Ki wait    10   0:00   0.00% /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/bin/nmake --ignorelock --keepgoing --errorid=lib/libast
39290   179 nobody       59    0  14744Ki    3444Ki wait    12   0:00   0.00% sh /dev/fd/3
39258   179 nobody       59    0  14744Ki    3452Ki piperd   0   0:00   0.00% sh /dev/fd/3
37014   179 nobody        0    0  14068Ki    2692Ki piperd  30   0:00   0.00% tee -a /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/lib/package/gen/make.out
37013   179 nobody        0    0  16728Ki    5320Ki select  14   0:00   0.00% /wrkdirs/usr/ports/shells/ksh93/work/ast-93u/arch/freebsd16.amd64/bin/nmake -k -K recurse believe nmake
32949   179 nobody       13    0  14744Ki    4136Ki wait    31   0:00   0.00% /bin/sh bin/package flat make ksh93
32948   179 nobody       59    0  14744Ki    3444Ki wait    19   0:00   0.00% /bin/sh -e /tmp/makeW36tmB
32940   179 nobody       59    0  14288Ki    3892Ki wait    21   0:00   0.00% /usr/bin/make -C /usr/ports/shells/ksh93 build
32453     0 root          0    0  20976Ki    5020Ki flswai  17   0:03   2.82% cpdup -i0 -s0 -f -x ref 26
32420     0 root          1    0  20976Ki    5024Ki flswai  25   0:03   2.81% cpdup -i0 -s0 -f -x ref 11
32358     0 root          1    0  20976Ki    5068Ki flswai  14   0:03   2.79% cpdup -i0 -s0 -f -x ref 20
32333     0 root         59    0  16872Ki    4960Ki wait    11   0:00   0.00% sh: poudriere[official-amd64-default][26]: build_pkg (linux-c7-numactl-libs-2.0.12_1) (sh)
32313     0 root         59    0  16872Ki
. . .


. . .
53486   185 root          0    0  66428Ki   34196Ki getblk  25   0:01   0.26% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
53485   185 root         59    0  23308Ki   12024Ki wait     0   0:00   0.00% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
53446   185 root         59    0  14744Ki    3504Ki wait    11   0:00   0.00% /bin/sh /usr/ports/Mk/Scripts/do-depends.sh
53445   185 root         59    0  14284Ki    3828Ki wait     1   0:00   0.00% /usr/bin/make -C /usr/ports/textproc/p5-YAML-Tiny build-depends
96359   183 root          0    0  66428Ki   34196Ki flswai  31   0:00   1.43% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
96358   183 root         59    0  23308Ki   12020Ki wait    29   0:00   0.00% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
96331   183 root         59    0  14744Ki    3504Ki wait     5   0:00   0.00% /bin/sh /usr/ports/Mk/Scripts/do-depends.sh
96330   183 root         59    0  14284Ki    3860Ki wait    27   0:00   0.00% /usr/bin/make -C /usr/ports/security/cyrus-sasl2 patch-depends
 9658   170 nobody       59    0  14224Ki    2852Ki flswai   3   0:00   0.02% install -m 0644 ./libcdio.info /wrkdirs/usr/ports/sysutils/libcdio/work/stage/usr/local/share/info
 9652   170 nobody       59    0  14744Ki    3420Ki wait     2   0:00   0.00% /bin/sh -c srcdirstrip=`echo "." | sed 's|.|.|g'`; \\\nlist='./libcdio.info'; test -n "/usr/local/share/info" || list=; \
 9643   170 nobody       59    0  14744Ki    3420Ki wait     8   0:00   0.03% /bin/sh -c srcdirstrip=`echo "." | sed 's|.|.|g'`; \\\nlist='./libcdio.info'; test -n "/usr/local/share/info" || list=; \
 9642   170 nobody       59    0  14776Ki    3652Ki wait    21   0:00   0.04% /usr/local/bin/gmake install-exec-am install-data-am
 9641   170 nobody       59    0  14776Ki    3632Ki wait     3   0:00   0.04% /usr/local/bin/gmake install
 9636   170 nobody       59    0  14744Ki    3424Ki wait    15   0:00   0.03% /bin/sh -c fail=; \\\nif (target_option=k; case ${target_option-} in ?) ;; *) echo "am__make_running_with_option: interna
 9635   170 nobody       59    0  14776Ki    3708Ki wait     0   0:00   0.06% /usr/local/bin/gmake INSTALL_PROGRAM=/bin/sh /wrkdirs/usr/ports/sysutils/libcdio/work/libcdio-2.2.0/install-sh -c -s inst
 9634   170 nobody       59    0  14776Ki    3680Ki wait    29   0:00   0.08% /usr/local/bin/gmake -f Makefile DESTDIR=/wrkdirs/usr/ports/sysutils/libcdio/work/stage install-strip
 9633   170 nobody       59    0  14744Ki    3428Ki wait    13   0:00   0.02% /bin/sh -e /tmp/makeOENiKj
 9611   170 nobody       59    0  16848Ki    3876Ki wait    21   0:00   0.22% /usr/bin/make -C /usr/ports/sysutils/libcdio stage
51574   158 root          0    0  74620Ki   34184Ki flswai  20   0:01   0.28% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
51573   158 root         59    0  23308Ki   12020Ki wait    20   0:00   0.00% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
51547   158 root         59    0  14744Ki    3512Ki wait    18   0:00   0.00% /bin/sh /usr/ports/Mk/Scripts/do-depends.sh
51545   158 root         59    0  14284Ki    3852Ki wait    27   0:00   0.00% /usr/bin/make -C /usr/ports/textproc/hyphen build-depends
56591   157 root          0    0  66428Ki   34184Ki getblk  17   0:01   0.25% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
56590   157 root         59    0  23308Ki   12024Ki wait    12   0:00   0.00% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
56528   157 root         59    0  14744Ki    3504Ki wait    28   0:00   0.00% /bin/sh /usr/ports/Mk/Scripts/do-depends.sh
56469   157 root         59    0  14284Ki    3832Ki wait     4   0:00   0.00% /usr/bin/make -C /usr/ports/converters/p5-MIME-Base32 build-depends
56593   155 root          0    0  66428Ki   34188Ki getblk   8   0:01   0.26% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
56592   155 root         59    0  23308Ki   12024Ki wait     4   0:00   0.00% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
56559   155 root         59    0  14744Ki    3508Ki wait    18   0:00   0.00% /bin/sh /usr/ports/Mk/Scripts/do-depends.sh
56532   155 root         59    0  14284Ki    3828Ki wait    13   0:00   0.00% /usr/bin/make -C /usr/ports/devel/p5-Parse-Yapp build-depends
52781   145 root          0    0  74620Ki   34244Ki flswai  12   0:01   0.25% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
52780   145 root         59    0  23308Ki   12024Ki wait    22   0:00   0.00% /usr/local/sbin/pkg-static add -A /packages/All/perl5-5.42.0_1.pkg
52753   145 root         59    0  14744Ki    3508Ki wait    24   0:00   0.00% /bin/sh /usr/ports/Mk/Scripts/do-depends.sh
52749   145 root         59    0  14284Ki    3824Ki wait    21   0:00   0.00% /usr/bin/make -C /usr/ports/converters/p5-JSON build-depends
 9610     0 root         59    0  16872Ki    4972Ki wait    14   0:00   0.01% sh: poudriere[official-amd64-default][14]: build_pkg (libcdio-2.2.0) (sh)
99560     0 root          1    0  20976Ki    4860Ki flswai  15   0:00   2.82% cpdup -i0 -s0 -f -x ref 01
99539     0 root         59    0  16872Ki    4960Ki wait    10   0:00   0.00% sh: poudriere[official-amd64-default][01]: build_pkg (texi2html-5.0_5,1) (sh)
98112     0 root          1    0  20976Ki    4828Ki flswai  19   0:00   3.47% cpdup -i0 -s0 -f -x ref 28
98096     0 root         59    0  16872Ki    4960Ki wait    31   0:00   0.00% sh: poudriere[official-amd64-default][28]: build_pkg (gdbm-1.26) (sh)
97694     0 root          1    0  20976Ki    4844Ki flswai   7   0:01   2.51% cpdup -i0 -s0 -f -x ref 27
97665     0 root         59    0  16872Ki    4960Ki wait     0   0:00   0.00% sh: poudriere[official-amd64-default][27]: build_pkg (sudo-1.9.17p2) (sh)
96108     0 root          0    0  20976Ki    4800Ki flswai  29   0:01   3.06% cpdup -i0 -s0 -f -x ref 19
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. . .

===
Mark Millard
marklmi at yahoo.com