Bryce McKinlay writes: > Dalibor Topic wrote: > > >> I think the solution here is to pass the system class > >> loader. This should always be correct for these bootstrap > >> classes. It doesn't solve the performance issues for cases where > >> a security manager is present, since a check will be performed > >> by the getSystemClassLoader call - however its better than what > >> we had before and certainly better than my incorrect patch ;-) > > > > Ah, the curse of getting microoptimizations right ;) > > I don't really consider this to be a micro-optimization. In libgcj > it causes pretty severe performance problems. You could argue that > this is because libgcj's calling-classloader check is too slow, and > you'd be right, but I would imagine that in most VMs, stack-walking > checks are relatively slow.
I agree with that: the more you optimize the VM, the greater the relative cost to walk the stack chain. Andrew. _______________________________________________ Classpath mailing list [EMAIL PROTECTED] http://lists.gnu.org/mailman/listinfo/classpath
