disk wait mystery

Brett Wynkoop wynkoop at wynn.com
Wed Jan 30 05:18:51 UTC 2013


Greeting-

Can anyone figure out why a mainly idle bone with only 2 user shells via
ssh running would have so much in disk wait?

wynkoop at beaglebone:~ % !ps
ps ax
PID TT  STAT     TIME COMMAND
  0  -  DLs   0:00.02 [kernel]
  1  -  ILs   0:00.20 /sbin/init --
  2  -  DL    0:00.00 [xpt_thrd]
  3  -  DL    0:01.92 [task: mmc/sd card]
  4  -  DL    0:00.01 [pagedaemon]
  5  -  DL    0:00.00 [vmdaemon]
  6  -  DL    0:00.00 [pagezero]
  7  -  DL    0:00.02 [bufdaemon]
  8  -  DL    0:00.02 [vnlru]
  9  -  DL    0:00.10 [syncer]
 10  -  RL   17:15.90 [idle]
 11  -  WL    0:07.91 [intr]
 12  -  DL    0:00.17 [geom]
 13  -  DL    0:00.21 [yarrow]
 14  -  DL    0:00.06 [softdepflush]
 15  -  DL    0:00.15 [schedcpu]
106  -  DL    0:00.00 [md0]
410  -  Is    0:00.06 dhclient: cpsw0 [priv] (dhclient)
448  -  Is    0:00.07 dhclient: cpsw0 (dhclient)
449  -  Is    0:00.01 /sbin/devd
634  -  Is    0:00.04 /usr/sbin/sshd
638  -  Is    0:00.55 /usr/sbin/cron -s
682  -  Is    0:00.64 sshd: wynkoop [priv] (sshd)
685  -  S     0:00.29 sshd: wynkoop at pts/0 (sshd)
678 u0  Is+   0:00.19 /usr/libexec/getty std.9600 ttyu0
686  0  Ss    0:00.74 -csh (csh)
831  0  R+    0:00.16 ps ax
wynkoop at beaglebone:~ % 

-Brett

-- 

wynkoop at wynn.com               http://prd4.wynn.com/wynkoop/pgp-keys.txt
917-642-6925
718-717-5435

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and bear arms is, as a last resort, to protect themselves against 
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