Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a pe

usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Report I/O stats from the CAM_IOSCHED_DYNAMIC extension

Report, on a periodic basis, the I/O latencies the CAM I/O scheduler
computes. These times are only for the hardware portion of the I/O as
mea

Report I/O stats from the CAM_IOSCHED_DYNAMIC extension

Report, on a periodic basis, the I/O latencies the CAM I/O scheduler
computes. These times are only for the hardware portion of the I/O as
measured from the time the operation is scheduled with the SIM using
xpt_action() until the SIM reports it has completed with xpt_dine(). Any
time the I/O operation spends in a software queue is no included.

The P50 (median), P90, P99 and P99.9 statistics about the latency of
each of the read, write and trim operations that completed during the
polling interval are reported. If there are fewer than 2, 10, 100 or
1000 operations during the polling interval, no statistic is reported
and a single dash '-' is displayed.

The read, write and trim commands (either on the command line or at run
time) toggle display of these operations. The color command toggles
color (it defaults to on, like gstat). When color is enabled, unknown
statistics are reported in blue, high latency for a statistics is
reported in red, medium in magenta and low in green (as with gstat). The
med= and hi= commands can set these latency thresholds.

Limitations: The entire sysctl space for all the devices is walked for
each polling period. This should be optimized to remember the OIDs and
only do such polling with the xpt generation changes. There is also no
way to filter devices displayed. This command only works on physical
devies that are connected to SCSI, ATA or NVME sims as those are the
only ones that are instrumented in the CAM I/O scheduler (the
CAM_IOSCHED_DYNAMIC option must be in the kernel, and the dynamic
scheduler can't be disabled).

MFC After: 1 month
Relnotes: yes
Sponsored by: Netflix
Reviewed by: pauamma_gundo.com, chs
Differential Revision: https://reviews.freebsd.org/D34259

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systat: mostly clean up warns

Sponsored by: Rubicon Communications, LLC ("Netgate")

Augment systat(1) -swap to display large swap space processes

This change updates the systat(1) -swap display to use libprocstat to
obtain and display per-process swap space usage infomation followi

Augment systat(1) -swap to display large swap space processes

This change updates the systat(1) -swap display to use libprocstat to
obtain and display per-process swap space usage infomation following its
existing swap devise/file statistics. It also incorporates the disk I/O
information from the -vmstat display.

The new screen looks like below with 'systat -swap':
/0 /1 /2 /3 /4 /5 /6 /7 /8 /9 /10
Load Average |

Device/Path Size Used |0% /10 /20 /30 /40 / 60\ 70\ 80\ 90\ 100|
ada0s1b 2048M 2034M
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
zvol/sys/tempora 1024M 1015M
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
zvol/sys/swap 1024M 1014M
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Total 4096M 4063M
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Pid Username Command Swap/Total Per-Process Per-System
24153 hiro seamonkey 98M / 1G 7% 2%
23677 hiro xfce4-pane 28M / 81M 34% XXX 0%
23629 hiro xfce4-sess 25M / 118M 21% XX 0%
23681 hiro xfdesktop 20M / 58M 34% XXX 0%
23678 hiro thunar 15M / 43M 36% XXX 0%
23658 hiro at-spi-bus 14M / 23M 63% XXXXXX 0%
23660 hiro gvfsd 12M / 21M 56% XXXXX 0%

Disks ada0 ada1 ada2 cd0 pass0 pass1 pass2 pass3
KB/t 8.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
tps 0 0 0 0 1 0 0 0
MB/s 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
%busy 0 0 0 0 0 0 0 0

Submitted by: Yoshihiro Ota
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D29754

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ncurses: chase dependency changes in the source tree

Differential Revision: https://reviews.freebsd.org/D32098

Patch systat -zarc to display cumulative rate and round down large numbers by SI units

PR: 237664
Submitted by: ota@j.email.ne.jp
MFC after: 2 weeks

Merge ^/head r325999 through r326131.

systat: use and correctly display 64bit counters.

Following struct vmtotal changes, make systat use and correctly
display 64-bit counters. Switch to humanize_number(3) to overcome
homegrown arithme

systat: use and correctly display 64bit counters.

Following struct vmtotal changes, make systat use and correctly
display 64-bit counters. Switch to humanize_number(3) to overcome
homegrown arithmetics limits in pretty printing large numbers. Use
1024 as a divisor for memory fields to make it consistent with other
tools and users expectations.

Submitted by: Pawel Biernacki <pawel.biernacki@gmail.com>
Sponsored by: Mysterious Code Ltd.
PR: 2137
Differential revision: https://reviews.freebsd.org/D13105

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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head (r291075).

Merge from head

Merge from head

Sponsored by: Gandi.net

Add support to systat to display SCTP statistics.

MFC after: 1 week

Merge from head

Merge ^/head r288197 through r288456.

Merge from head

Sync up with head (up to r288341).

Add support to systat to display zfs arc cache status/info

PR: 195460
Submitted by: ota

Catch up with HEAD (r280229-r284686).

Merge from head

Merged ^/head r283871 through r284187.

Bump WARNS level to 1

Merge sync of head