Good to know. Thanks! -----Original Message----- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Mark Post Sent: Friday, February 20, 2015 2:40 PM To: LINUX-390@VM.MARIST.EDU Subject: Re: IFL vs Non-IFL processor
>>> On 2/20/2015 at 03:00 PM, Linker Harley - hlinke >>> <harley.lin...@acxiom.com> wrote: > I doubt that they expose the difference between an IFL and a GP > (General > Purpose) engine as an IFL, basically, is a GP engine loaded with > different microcode (to prevent the engine from being able to run > z/OS). It is a full speed engine where a GP engine can be slowed > down, via microcode, to reduce software licensing costs in a z/OS environment. Turns out they do. Mike O'Reilly was right about hyptop. It appears the information is available in /sys/kernel/debug/s390_hypfs/diag_204 but it's all binary information. If you don't want to use hyptop, you'd need to read the source code for hyptop to parse the information yourself. Sounds like a reasonable enhancement request for IBM to add that information to the output of /proc/cpuinfo or the lscpu command. Mark Post ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ *************************************************************************** The information contained in this communication is confidential, is intended only for the use of the recipient named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please resend this communication to the sender and delete the original message or any copy of it from your computer system. Thank You. **************************************************************************** ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
