Mark, I wanted to run multiple Linux/390 LPARs but with tthis problem I ended up giving this Linux/390 lpar the whole IFL. I also ran the following command to test how long does it takes to compile sendmail on my Linux/390 Lpar as compared to Intel, the command is : "time sh Build" from Intel it takes about 1 min and from Linux/390 it took about 3min. I also tried to increase my storage to 1024 and gave it the expanded storage of 512 but that didn't make a different. When it started rejecting connections the CPU load was very high, about 10. My Lpar is connected via an escon channel to the 2216 which is shared among 4 other system. I dont thing that will be the case because the other lpar performs OK.
Please assist moloko > -----Original Message----- > From: Post, Mark K [SMTP:[EMAIL PROTECTED]] > Sent: 20 March 2002 04:07 > To: [EMAIL PROTECTED] > Subject: Re: Bogomips S390(IFL) / Intel > > Other people have pointed out the absolute uselessness of BogoMIPS for > anything and how they are _not_ generic across platforms, so I won't dwell > on that. What I don't understand is why you are doing anything other than > dedicating that IFL to your Linux/390 LPAR. Are you running multiple > Linux/390 LPARs on that one processor? If so, you're probably asking for > trouble. During the period of time the server was rejecting connections, > what was your CPU load? High? Low? It may or may not be a lack of > processor power, but unless you have some data you're never going to know > one way or the other. What kind of network connection does this LPAR use? > Are there any/many other systems on the same subnet? What kind of collision > rate are you seeing? And on, and on, and on. If you don't have any > measurements, there's no possible way to tell if your system will be able to > handle a real life load or not. > > Mark Post > > -----Original Message----- > From: Moloko Monyepao [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, March 19, 2002 4:25 AM > To: [EMAIL PROTECTED] > Subject: Bogomips S390(IFL) / Intel > > > I RedHat 7.2 (Server Installation). I am currentely testing sendmail > (Comparing the load handling between Linux on Intel and Linux on S390. I am > using an IBM z37 machine with one IFL and I gave my Linux LPar 80Pwt > (processor weighting on the IFL) > When the sever gets too busy start rejecting messages. Just for outbount > mail and I also want to test for both Inbound/Outbound. What could be the > problem here. I will send any further information if it is needed. The > following is what I got from my mail administrator. > > This is the BogoMips rating for the various machines: > > Mainframe: 326.04 BogoMIPS (Mainframe) > Maggie (mail-spool, 500Mhz): 996.14 (Intel) 500meg (processor) > > Higher is better, BogoMIPS should also be generic across platforms. > > The mainframe is running very high load and is getting behind with > mail. Due to the high load, it starts to block connections which is no > good at all (might need to move it back). At this stage I am only > running outbound mail through the box, which is not really where the > load comes from. The real load comes from inbound mail (300-400 > concurrent connections). I don't think this is going to work, unless you > can get MUCH faster processors. At least in the range of 2Ghz+ as in > Intel architecture. > > Please assist > Moloko
