Troubleshooting WebLogic Server 12c - Oracle WebLogic Server 12c Advanced Administration - page 190

The pattern shown in the following screenshot is an example of where the SAR tool displays
a very high load in the host prod01 between 08:50 A.M. and 10:50 A.M..
Checking the verbose GC log during the period reveals that the heap usage was a possible
cause of the problem.
A verbose output pattern at 8:07 AM with a regular load in the host is shown as follows:
[memory ][Wed Nov 14 08:07:23 2012][YC#812] 14913.268-14913.541: YC
7444470KB->6687193KB (8388608KB), 0.273 s, sum of pauses 272.307 ms,
longest pause 272.307 ms.
[memory ][Wed Nov 14 08:07:48 2012][YC#813] 14937.672-14938.002: YC
7581758KB->6861173KB (8388608KB), 0.330 s, sum of pauses 329.867 ms,
longest pause 329.867 ms.
[memory ][Wed Nov 14 08:08:17 2012][YC#814] 14967.114-14967.327: YC
7793098KB->7028158KB (8388608KB), 0.213 s, sum of pauses 212.877 ms,
longest pause 212.877 ms.
[memory ][Wed Nov 14 08:08:40 2012][YC#815] 14990.600-14990.720: YC
7956848KB->7183819KB (8388608KB), 0.120 s, sum of pauses 119.871 ms,
longest pause 119.871 ms.
[memory ][Wed Nov 14 08:09:07 2012][YC#816] 15017.601-15017.891: YC
8068774KB->7316184KB (8388608KB), 0.289 s, sum of pauses 289.172 ms,
longest pause 289.172 ms.
[memory ][Wed Nov 14 08:09:34 2012][YC#817] 15044.272-15044.531: YC
8198322KB->8276054KB (8388608KB), 0.259 s, sum of pauses 258.391 ms,
longest pause 258.391 ms.
[memory ][Wed Nov 14 08:09:37 2012][OC#55] 15044.531-15047.620: OC
8276054KB->6057336KB (8388608KB), 3.089 s, sum of pauses 2966.710 ms,
longest pause 2966.710 ms.