But Siege says the following (so may not be enough) "We've had people ask about configurations like -c1000 -d1. A single pre-forking apache server cannot handl

But Siege says the following (so may not be enough) "We've had people ask about configurations like -c1000 -d1. A single pre-forking apache server cannot handle such load without modification. It has a hardcoded limit of 256."