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How much space is in a Solaris /tmp filesystem?

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linux-howto

http://serverfault.com – On Solaris, the /tmp filesystem is a filesystem of type "tmpfs". It's implemented in the kernel by allocated space from the virtual memory pool. That means allocation interacts with the available RAM on the machine and the swap space available. If I have a large-memory machine (lots of RAM) with a smaller sized moderate swap partition, will the size of my /tmp space be limited by the memory, or by the swap space, or by the sum of both of them? The number shown by "df -h /tmp" doesn't seem to reflect the free RAM, only the swap space. (HowTos)