I have a nodejs app that runs periodically on my Mac. I noted the following and thought it curious.
2014-07-22 8:37:34.000 AM kernel: process node caught causing excessive wakeups. Observed wakeups rate (per sec): 205; Maximum permitted wakeups rate (per sec): 150; Observation period: 300 seconds; Task lifetime number of wakeups: 48883 2014-07-22 8:37:34.060 AM ReportCrash: Invoking spindump for pid=32764 wakeups_rate=205 duration=220 because of excessive wakeups 2014-07-22 8:37:37.511 AM spindump: Saved wakeups_resource.spin report for node version ??? (???) to /Library/Logs/DiagnosticReports/node_2014-07-22-083737_MartinCleaversMBP.wakeups_resource.spin
It doesn't seem to affect the operation of the machine and the app seems to work fine.