[Bug 62766] systat(1) -vm does not work on diskless machines

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=62766

--- Comment #2 from ota at j.email.ne.jp ---
I just tested this on 12.1-RELEASE and systat DOES work okay.

pxeboot# df -h
Filesystem             Size    Used   Avail Capacity  Mounted on
10.0.0.1:/mnt/sys      1.9G    1.0G    817M    55%    /
devfs                  1.0K    1.0K      0B   100%    /dev
tmpfs                  357M    8.0K    357M     0%    /tmp
tmpfs                   32M    144K     32M     0%    /var
10.0.0.1:/usr          6.8G    2.3G    4.0G    36%    /usr
10.0.0.1:/usr/local    9.7G    6.5G    2.4G    73%    /usr/local

pxeboot# systat -vm
    3 users    Load  0.23  0.32  0.18                  Aug 29 22:29
   Mem usage:  20%Phy 12%Kmem 0k%VM
Mem: KB    REAL            VIRTUAL                      VN PAGER   SWAP PAGER
        Tot   Share      Tot    Share    Free           in   out     in   out
Act   53256   12080   165316    15004  369472  count
All   53612   12436   165864    15552          pages
Proc:                                                            Interrupts
  r   p   d   s   w   Csw  Trp  Sys  Int  Sof  Flt        ioflt  2010 total
             23       196   19  798 2009   34    7        cow    2004 attimer0
0
                                                          zfod        atkbd0 1
 0.4%Sys   0.0%Intr  1.2%User  0.0%Nice 98.5%Idle         ozfod       fdc0 6
|    |    |    |    |    |    |    |    |    |           %ozfod       ppc0 7
>                                                         daefr       acpi0 9
                                           dtbuf          prcfr       uhci0+ 10
Namei     Name-cache   Dir-cache     15472 desvn          totfr     6 cbb0
cbb1+
   Calls    hits   %    hits   %       961 numvn          react       ata0 14
       9       9 100                    67 frevn          pdwak       ata1 15
                                                        5 pdpgs
Disks                                                     intrn
KB/t                                                64884 wire
tps                                                 22540 act
MB/s                                                 5376 inact
%busy                                                     laund

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