focal (8) vzubc.8.gz

NAME

       vzubc - show User Beancounters in a human-readable format

SYNOPSIS

       vzubc [option ...] [CTID ...]

DESCRIPTION

       This utility aims to show current values for User Beancounter in a human-readable format. Values that are
       in pages are converted into bytes, then long values are converted into kilo-, mega- gigabytes  etc.   For
       held  and  maxheld, it shows how close the values are to the barrier and to the limit. Zero and unlimited
       values are shown as -.

       One or several CTIDs can be specified to limit the output to the  given  containers.  Each  CTID  can  be
       either  a  name  or  a numeric ID. Note that names can only be used if there is a container on the system
       with that name (vzlist -o ctid name command is used for  name  to  ID  conversion).   Unknown  CTIDs  are
       ignored.

       The  utility  can  also be used from inside the container, in this case it only shows the values for that
       container (and it doesn't make sense to specify CTID argument).

OPTIONS

       -w, --watch
              Watch mode: run itself under watch(1), redisplaying the output every 2 seconds (by default)  until
              interrupted by Ctrl-C.

       -wd    Make  watch(1) highlight the differences between current and previous output. Corresponds to watch
              -d option.

       -wt    Instruct watch(1) to not show its title (interval, command, and current time at  the  top  of  the
              display, as well as the following blank line). Corresponds to watch -t option.

       -wn time
              Refresh interval for watch(1), in seconds (corresponds to watch -n time).

       -q, --quiet
              Quiet  mode.  In  this  mode, vzubc only shows beancounters with fails and those with held/maxheld
              values close to limits.  -v, --verbose Verbose mode. In this mode, vzubc also  shows  beancounters
              with barrier set to unlimited (those are hidden by default).

       -qh ratio
              Quiet threshold for held to limit ratio. Default is 0.5 (50%).

       -qm ratio
              Quiet threshold for maxheld to limit ratio. Default is 0.8 (80%).

       -r, --relative
              Relative  mode: for fail counters, instead of showing the absolute value, calculate the difference
              from the previous run. This mode is denoted by a + sign before the FAIL column header.

       -rd dir
              Set a directory for saving fail counters to dir (default is /tmp/vzubc.store).

       -rc    Clear all saved fail counter data.

       -i, --incremental
              Incremental mode. Shows an additional column with a difference in held  value  from  the  previous
              run.  This option also affects quiet mode: all lines with changed held values are shown. Held data
              is saved to the same directory as fail counter data.

       -id dir
              A synonym for -rd.

       -ic    Clear all saved held data.

       -c, --color
              Enable color highlighting. Not compatible with --watch. Same thresholds as for quiet mode are used
              to highlight "more important" lines, plus the lines with non-zero fail counters are highlighted.

       -f | --file filename
              Read User Beancounters from filename. By default this is /proc/bc/resources or, if that one is not
              available, /proc/user_beancounters. Use - to read from standard input.

EXAMPLES

       vzubc 101 web dns
              Show all beancounters for CTID 101 and for CTs named web and dns.

       vzubc -w -wd -wn 10 101
              Display beancounters for CT 101 every  10  seconds,  highlighting  the  changes.   Interrupt  with
              Control-C.

       vzubc -q -c
              Show  beancounters  with  held or maxheld close to limits, plus those with non-zero fail counters,
              with colors.

       vzubc -q -qh 0.8 -qm 1
              Show beancounters with held value equal to or more than 80% of a limit, and/or with maxheld  value
              equal or more than a limit, plus those with non-zero fail counters.

       vzubc -w -q -r
              Display  beancounters  with  held  and  maxheld  close  to limits, plus those with increasing fail
              counters.

       vzubc -r -q -qh 2 -qm 2
              Only show beancounters with increased (since the last run) fail counters.

       vzubc -rc -ic
              Show all beancounters, and clear all saved data for relative  and  incremental  mode  (i.e.  saved
              values for fail counter and held).

FILES

       /proc/bc/resources
       /proc/user_beancounters
       /tmp/vzubc.store/ubc.*

EXIT STATUS

       Returns 0 upon successful execution, 1 otherwise.

SEE ALSO

       watch(1), vzlist(8), vzmemcheck(8), vzcfgvalidate(8), http://wiki.openvz.org/UBC.

LICENSE

       Copyright (C) 2011, Parallels, Inc. Licensed under GNU GPL.