On 2013-01-23 09:41, casper....@oracle.com wrote:
Yes and no: the system reserves a lot of additional memory (Solaris doesn't over-commits swap) and swap is needed to support those reservations. Also, some pages are dirtied early on and never touched again; those pages should not be kept in memory.
I believe, by the symptoms, that this is what happens often in particular to Java processes (app-servers and such) - I do regularly see these have large "VM" sizes and much (3x) smaller "RSS" sizes. One explanation I've seen is that JVM nominally depends on a number of shared libraries which are loaded to fulfill the runtime requirements, but aren't actively used and thus go out into swap quickly. I chose to trust that statement ;) //Jim _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
