To see today's cpu-activity so far (supposed that atop is logging
in the background):
pcp-atopsar
To see the memory occupation for June 5, 2018 between 10:00 and
12:30 (supposed that pmlogger has been logging daily in the
background on host acme.com):
pcp-atopsar -m -r $PCP_LOG_DIR/pmlogger/acme.com/20180605 -b
10:00 -e 12:30
or
pcp-atopsar -m -r 20180605 -b 10:00 -e 12:30
or, suppose it is June 8, 2018 at this moment
pcp-atopsar -m -r yyy -b 10:00 -e 12:30
Write a logfile with atop to record the system behaviour for 30
minutes (30 samples of one minute) and produce all available
reports afterwards:
pcp-atop -w /tmp/atoplog 60 30
pcp-atopsar -A -r /tmp/atoplog
To watch TCP activity evolve for ten minutes (10 samples with
sixty seconds interval):
pcp-atopsar -t 60 10
To watch the header-lines ('_' as last character) of all reports
with only the detail-lines showing critical resource consumption
(marker '*' or '+' as last character):
pcp-atopsar -AM | grep '[_*+]$'
