Hi! This WinTel/Mainframe-article is a price/performance-only-comparison. Even with a transcendental tuning it would be hard to beat WinTel in such a kind of benchmark.
But did you notice, that the mainframe-costs are the same for 1 server and for 96 servers...? :) (I dont have the time to collect the costs for 96 WinTels and its buildup/administration at this point) By the way, it`s cheaper to take a chainsaw instead of a WinTel to fell a tree. Why is no chainsaw manufacturer starting an ad campaign with this fact? It everytime depends ... IO-Performance: Every fairy/rumor contains a bit of truth. On page 12 Figure 3 you can see, that the real process-cpu-usage is near 10 percent. rest is "system cpu". I noticed that on several linux systems in our environment. We had an SAP application server in test. Equipped with 6 processors and 8-12 G of RAM we were nearly equivalent to our runnning AIX-Servers. z/linux performance was lower, response time was higher, but both were tolerable. problems, of course: costs. You could sell it as "capacity on demand" for annual accounting runs. This require however a very special pricing from IBM for beeing competitive. But I noticed a weird "system-cpu-consuming" on high load on this machine. I startet xosview for visualizing processores and noticed, that beside this high "cpu in system mode" sometimes 1 or 2 cpu where 100% used completly for systems, durations about 20 secs. It seems, that linux and the software running on it is not yet really optimized for the z-platform. processors are waiting together with the processes for i/o, ressources etc.(?).. Structure of z/OS seems to be better with its JES and those initiators. Processes are completly swapped out when waiting for Ressources What about the Kernel 2.6? I heard about a better scheduling... regards Frank Schwede -----Urspr�ngliche Nachricht----- Von: Ceruti, Gerard G [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 7. Januar 2004 14:15 An: [EMAIL PROTECTED] Betreff: MS url Hi People Is anyone aware of rebuttals to the doco on http://www.microsoft.com/mscorp/facts/default.asp ? Regards Gerard Ceruti ____________________________________________________________________________ ______________________________________________________ For information about the Standard Bank group visit our web site <www.standardbank.co.za> ____________________________________________________________________________ ______________________________________________________ Disclaimer and confidentiality note Everything in this e-mail and any attachments relating to the official business of Standard Bank Group Limited is proprietary to the group. It is confidential, legally privileged and protected by law. Standard Bank does not own and endorse any other content. Views and opinions are those of the sender unless clearly stated as being that of the group. The person addressed in the e-mail is the sole authorised recipient. Please notify the sender immediately if it has unintentionally reached you and do not read, disclose or use the content in any way. Standard Bank can not assure that the integrity of this communication has been maintained nor that it is free of errors, virus, interception or interference. ____________________________________________________________________________ _______________________________________________________
