swapmon(1) General Commands Manual swapmon(1) NAME swapmon -- monitor swapusage, add swapspace as needed SYNOPSIS swapmon [start|stop|-F] add/remove swapspace automatically as needed DESCRIPTION swapmon will check the current swapusage and if more than SWAP_HIGH percent of swapspace is in use it will create a new swapfile with a size of size of SWAP_STEP percent of the current swapspace and activate it. If less than SWAP_LOW percent of swapspace is in use it will deactivate a previously added swapspace file and remove it. If called with start it will fork into the background and run as a daemon. It will check and then sleep for DELAY seconds before checking again. Mes- sages about the operation will be piped to LOGGER. The pid of the daemon will be written to PIDFILE. If called with stop it stop a previously forked swapmon daemon. If called with -F it will run as a daemon but not detach from the terminal. Messages will still be piped to LOGGGER and not to the terminal by default. You may specify "/bin/cat" as LOGGER to get the messages on the terminal. Default values: SWAP_HIGH 75 SWAP_LOW 45 SWAP_STEP 100-SWAP_HIGH (=25) SM_HOME "/usr/.swap/" DELAY 30 LOGGER /usr/bin/logger PIDFILE /var/run/swapmon.pid swapmon can be called via cron(5). In that case you would receive messages about the swapspace being adjusted via e-mail. To use it that way add a crontab entry to the root crontab similar to this: * * * * * /usr/local/sbin/swapmon FILES /usr/local/etc/swapmonrc optional configuration file for overwriting the defaults above $SM_HOME The "homedirectory" of swapmon. In here the swap- files as well as a lockfile and the swapfile list will be created. SEE ALSO swapctl(8), mdconfig(8), truncate(8), logger(1), crontab(5) FreeBSD Wed Jul 20 2010 swapmon(1)
NAME | SYNOPSIS | DESCRIPTION | FILES | SEE ALSO
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