I just got a chance to start playing with the capped memory resource controls in build 56. At first blush, this looks to be *very* good stuff. My initial testing included some very basic single process memory hog tests and multiple process mmap(..., MAP_SHARED,...) tests. In each case, the limits kicked in as I expected, and prstat -Z running from the global zone gave what appeared to be accurate information. Great job!
One of the effects of setting capped-memory resource control for swap is that the size of /tmp is also limited. Unlike when a tmpfs size limit is set with the size=... mount option, "df /tmp" does not display a value that is reflective of the limits that are put in place. Similarly, vmstat and "swap -l" running inside the zone give no indication that there is a cap smaller than the system-wide limits. Am I missing something here? I do see that some of the values I am looking for are available through kstat (thank you!). Is there some more user-friendly tool (already or coming) to use inside the zone? Oh, and the question that everyone at work will ask when I tell them about this - when will it find its way into Solaris? :) Mike -- Mike Gerdts http://mgerdts.blogspot.com/ _______________________________________________ zones-discuss mailing list zones-discuss@opensolaris.org
