> My guess (and that's all it is) is that you have eliminated much of the > context-switching overhead that two instances would have compared to one.
Ah I see. I guess i can look at that with mpstat and look at things like thread migrations etc. Important because if we install more CPU's i guess that may mitigate the context switching overhead. Or maybe we can gain performance by tying zones to one or two cpu's. > What is this cpu (type and speed) compared to the others? If it's a > slower or less-capable (no numeric coprocessor, etc) cpu, the same load > would be a high percentage of its capability. Opteron 254 vs 252. So 0.2ghz less but afaik no other difference. Not enough of a difference to account for the additional cpu. so this box uses 80% cpu vs 30% on the other one for the same load. the only other diff in the box is that the better one is a Sun M2 X4100 rather than just a plain X4100 - the only difference between those seem to be DDR2. > > Many thanks to any input to my Friday weird-ness! > > Dan > > > > > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > ________________________________________________ Message sent using UebiMiau 2.7.10 --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
