Linux on 390 Port <[email protected]> írta 2005.11.07 15:09:38 időpontban:
> Don't let the compile times scare you. It is long established that the > zSeres processors are not the fastest on the market, far from it. What > you gain by running on zSeries is extremely fast internal communications > with Hipersockets and Virtual Switch, high I/O bandwidth (FICON and SCSI > disk support) and the economies of scale of being able to run multiple > middleware machines with only the license cost of the zSeries CPUs. > Running java programs is always cpu intensive.. 1 x86 CPU is _much_ faster than an IFL (on our z800), so to migrate 10 x86 to 1 IFL is not the best idea if you have heavy cpu loads. I have never seen that extremly fast i/o: an x86 can do that also with a storage server.., so if you don't have thousands of users with thousands of opened files x86 will be faster (the same goes to HiperSockets: it's nice, goes with memory speed, but at the end you need a cpu to do something with the sent/arrived data :) I think zSeries may be faster in concurrent operations. You won't have any problems if you see 60-70% "system" load in top program. And of course we cannot forget the zero-downtime.. István ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
