Re: new power7+ models, # of threads

[Nathan Andelin <nandelin@xxxxxxxxx>]

The OP was speaking of CPU threads (hardware), not application threads (software). But I suppose both support concurrent parallel processing. Use WRKACTJOB to see the number of threads a Job is running. Most IBM i Jobs are single threaded. The HTTP Server and most JVM jobs are notable exceptions. However, the real point is that IBM i manages workloads with thousands of Jobs and with thousands of application threads, and increases throughput by dispatching application threads to CPU threads intelligently and efficiently. It's arguably the best system on the planet for managing complex workloads.

-Nathan





----- Original Message -----
From: Matt Olson <Matt.Olson@xxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Cc: 
Sent: Wednesday, February 6, 2013 9:11 AM
Subject: RE: new power7+ models, # of threads

Isn't this entirely dependent on whether or not the software you are using is even taking advantage of multi-threading?  Not all software does, and good luck finding out if it is.  It's easy to see if a process / software is using multiple cores in other environments, I have no clue how you would on the i.

I think the real question you should be asking, is: "Does software x,y,z utilize multiple cores/threads".