Dumb graphing scripts that abuse Google Charts, your web browser, and your sense of good taste.

mem

Set the PID to the process you want to watch.

PID=38158; \
DATAPOINTS=400; \
WAITTIME=10; \
TITLE="Memory Usage"; \
LOGFILE=mem.log; \
open mem.html; \
(tail -n $DATAPOINTS $LOGFILE; \
 echo 'START'; \
 while [ 1 ] ; do \
    MEM=`ps -o rss= -p $PID`; \
    echo -e "`date`\t`date +%s`\t$MEM"; \
    sleep $WAITTIME; \
 done | tee -a $LOGFILE \
) | php mem.php $DATAPOINTS $TITLE