craig wrote: > > I know every process in FreeBSD have 4G(3G user) space. But the > sum of n(n<4096?) processes seems to have n*4G virtual memory. > Is it possible? The physical max memory for i386 is 4G. Can I > just make a swap file more than 4G such like 6G, 8G or more? Yes. Each process runs in a completely seperate virtual address space. > I guess the sum of n processes's virtual memory can not be more > than 4G ,so the sum of physical memory and swap space cannot be > over 4G also.Can you confirm my view? A single process can not have more than 3G (default) of virtual memory, whether that memory is currently in swap, or has been moved to physical RAM, instead. > Another problem, is there any tool for instrumentation for > FreeBSD kernel? man systat man vmstat man top man netstat man sysctl -- Terry To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message