The ntpd (network time protocol) daemon is run on each of the 4 wapps to keep the clocks synchronized with our time servers. ... on 15apr05 an ntpd clock jump was documented for the wapps. on 19apr05 ntpd was disabled and the local clock drift on the wapps was measured while the cpu was exercised. ... To further investigate the ntp clock jumps , the ntp log file for the 4 wapps from 2003 thru march 2006 was scanned and the ntpd clock resets were examined. ... Each wapp is plotted in a different color. ...