[Bug 238123] Swap usage in top(1) broken

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat May 25 22:43:04 UTC 2019


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238123

            Bug ID: 238123
           Summary: Swap usage in top(1) broken
           Product: Base System
           Version: 11.2-STABLE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: bin
          Assignee: bugs at FreeBSD.org
          Reporter: eugen at freebsd.org
                CC: kib at FreeBSD.org

"top -w -o space" is supposed to show approximate swap usage per process
sorting list of processes by swap usage. This is what it shows for stable/11
r345946 (11.2-STABLE/amd64) with GENERIC kernel after swapoff(8) invocation:

last pid:  9909;  load averages:  0.35,  0.29,  0.27    up 50+00:09:28 
22:31:18
59 processes:  1 running, 58 sleeping
CPU:  0.0% user,  0.0% nice,  2.0% system,  0.0% interrupt, 98.0% idle
Mem: 108M Active, 330M Inact, 317M Laundry, 1096M Wired, 60M Free
ARC: 118M Total, 17M MFU, 64M MRU, 32K Anon, 3162K Header, 34M Other
     53M Compressed, 192M Uncompressed, 3.65:1 Ratio
Swap:

  PID USERNAME    THR PRI NICE   SIZE    RES   SWAP STATE    TIME    WCPU
COMMAND
40557 squid         1  52    0 20752K     0K  9376K wait     0:00   0.00%
<squid>
94177 eugen         1  20    0  7860K     0K  3080K wait     0:00   0.00%
<bash>
58019 eugen         1  23    0  7860K     0K  3068K wait     0:00   0.00%
<bash>
  992 eugen         1  23    0  7860K     0K  3064K wait     0:00   0.00%
<bash>
26511 eugen         1  23    0  7860K     0K  2576K wait     0:00   0.00%
<bash>
83131 eugen         1  21    0  7860K     0K  2576K wait     0:00   0.00%
<bash>

top was restarted but numbers are same as before swapoff: it shows some
processes as swapped out but there is no swap now.

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