On 9 February 2011 01:36, Caldarale, Charles R <chuck.caldar...@unisys.com>wrote:
> The JVM always reserves the maximum heap size as virtual space, but does > not allocate more of the heap than the current limit; the limit will be > adjusted up or down within the -Xms : -Xmx range as load dictates. The > unused virtual space is not available for any other use. > > Chuck, d'you happen to know how the virtual space reservation impacts swap space requirements (if at all)? Although somewhat less unpleasant than buying RAM, 200 * 0.5Gbytes is still a lot of disk to allocate for swap if you expect it's never going to be used. I therefore assume there's not a direct mapping of reserved virtual space to reserved space in the swap file. - Peter
