On Mon, 8 Feb 2010 09:09:20 +0100, R.S. <[email protected]> wrote:
>Timothy Sipples pisze: >[...] >> Also, I'm quite sure that there's presently no cycle steering or other >> clock speed tricks to adjust power consumption dynamically, at least on the >> z cores. Considering the role mainframes play (running at high utilization >> rates), this design philosophy, to optimize for continuous operations, >> makes a lot of sense. > >Wrong. Cycle steering is present when REALLY needed. That means when >temperature grows up. It was discussed on the forum. Of course it covers >all the CPs. > Yes. And you see message IWM063I when it happens. Al Sherkow has a nice little write up about it. http://www.sherkow.com/updates/20081014cooling.html Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - ZFUS G-ITO mailto:[email protected] z/OS Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
