On Sunday April 12 2009, Christian Vest Hansen wrote: > On Sun, Apr 12, 2009 at 5:57 PM, Robert Fischer > > <robert.fisc...@smokejumperit.com> wrote: > > Is the max number of stack frames stored somewhere? > > I don't *think* it is possible to say for sure what the number is. > Going from memory, the stack area of the memory used by the JVM has > an upper bound in bytes controlled by -Xss, and this area is shared > among all threads, and different stack frames may take up a different > amount of memory.
The value given for -Xss (or its default) establishes a per-thread limit, not JVM-wide shared limit. For all threads to share stack space, the stack would have to be a linked structure, not a contiguous region. As you say, each stack frame's size is not fixed, but depends on the arguments and local variables declared by the method invoked. So the conclusion—that it is not possible to state or compute a number of stack frames available—is true. Incidentally, I can't think of a reason, offhand, that a linked stack could not be used in a JVM implementation, but my knowledge of the JVM spec and pertinent implementation techniques is minimal. Randall Schulz --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "JVM Languages" group. To post to this group, send email to jvm-languages@googlegroups.com To unsubscribe from this group, send email to jvm-languages+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/jvm-languages?hl=en -~----------~----~----~----~------~----~------~--~---
