At 23:39 09-05-02, Jim Elliott wrote: >I can't think of any reason to run 31-bit apps on the 64-bit kernel, and >the vendor products (such as DB2 and WAS) are not supported in that >environment. There may be some technical advantages, but I will leave a >response on that to others.
Look at it from the other side. If you application does not need to have more than 2 GB of stuff around, what would be the advantage to use a 64 bit version of that application. As I understand the 64 bit version will be larger because all kind of things double in size and thus the cost of running your application would be higher. A 64-bit kernel would allow multiple 31 bit applications in the same large 64 bit Linux image, instead of running a lot of smaller ones. But if the ISVs do no support this mode it will be less attractive. I don't think it will be trivial to run a large number of virtual machines each with > 2GB of virtual storage on a VM system, so for Linux on VM my main interest is 31 bit kernels anyway. Rob
