It is "Map-Reduce Framework/CPU time spent (ms)" (the shown name in all webpage or console) counter for every run?
Zhu, Guojun Modeling Sr Graduate 571-3824370 guojun_...@freddiemac.com Financial Engineering Freddie Mac Arun C Murthy <a...@hortonworks.com> 07/17/2012 01:39 PM Please respond to mapreduce-user@hadoop.apache.org To mapreduce-user@hadoop.apache.org cc Subject Re: What exactly does the "CPU time spent (ms)" measure? Zhu, Do you mean the 'slot millis' counter? Arun On Jul 17, 2012, at 6:13 AM, GUOJUN Zhu wrote: Sometimes there are big discrepency between this time and the real running time at the task level. It can be significantly less than the real running time; for some case, I observe that it is longer than the real running time. What exactly does this counter measure? Thanks. Zhu, Guojun Modeling Sr Graduate 571-3824370 guojun_...@freddiemac.com Financial Engineering Freddie Mac -- Arun C. Murthy Hortonworks Inc. http://hortonworks.com/
