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
