The following command produces reports at 5-second sampling intervals. A report will be issued five times, once after each sample.
user1machine% rcapstat 5 5 |
id project nproc vm rss cap at avgat pg avgpg 376565 user1 57 209M 46M 10M 440M 220M 5528K 2764K 376565 user1 57 209M 44M 10M 394M 131M 4912K 1637K 376565 user1 56 207M 43M 10M 440M 147M 6048K 2016K 376565 user1 56 207M 42M 10M 522M 174M 4368K 1456K 376565 user1 56 207M 44M 10M 482M 161M 3376K 1125K |
In this example, the project user1 has an RSS in excess of its physical memory cap. The nonzero values in the pg column indicate that rcapd is consistently paging out memory as it attempts to meet the cap by lowering the physical memory utilization of the project's processes. However, rcapd is unsuccessful, as indicated by the varying rss values that do not show a corresponding decrease. This means that the application's resident memory is being actively used, forcing rcapd to affect the working set. Under this condition, the system will continue to experience high page fault rates, and associated I/O, until the working set size is reduced, the cap is raised, or the application changes its memory access pattern.