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Top Forums UNIX for Dummies Questions & Answers Relationship (or difference) between AIX and AS/400 Post 302069909 by sprellari on Thursday 30th of March 2006 04:50:22 AM
Old 03-30-2006
AS/400 is an operating system, just as AIX is an operating system. AIX is intended for pSeries machines (now known as System P5) and AS/400 for iSeries (known now as System I5).

Both iSeries and pSeries machines run on Power processors, where Power5+ is the lastest one. Power6 is sceduled for release on Q2 or Q2 2007.

It is rather pointless to try to find out what processor AIX is running on, for it only runs on Power processor. If you want to know exactly what kind of Power processor it is, that is its generation, speed and so on you can type "lsattr -El proc[number]" where number is the processor number in the machine, starting with first number as 0.
 

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__PPC_YIELD(3)						     Linux Programmer'sManual						    __PPC_YIELD(3)

NAME
__ppc_yield, __ppc_mdoio, __ppc_mdoom - Hint the processor to release shared resources SYNOPSIS
#include <sys/platform/ppc.h> void __ppc_yield(void); void __ppc_mdoio(void); void __ppc_mdoom(void); DESCRIPTION
These functions provide hints about the usage of resources that are shared with other processors on the Power architecture. They can be used, for example, if a program waiting on a lock intends to divert the shared resources to be used by other processors. __ppc_yield() provides a hint that performance will probably be improved if shared resources dedicated to the executing processor are released for use by other processors. __ppc_mdoio() provides a hint that performance will probably be improved if shared resources dedicated to the executing processor are released until all outstanding storage accesses to caching-inhibited storage have been completed. __ppc_mdoom() provides a hint that performance will probably be improved if shared resources dedicated to the executing processor are released until all outstanding storage accesses to cacheable storage for which the data is not in the cache have been completed. VERSIONS
These functions first appeared in glibc in version 2.18. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +------------------------------+---------------+---------+ |Interface | Attribute | Value | +------------------------------+---------------+---------+ |__ppc_yield(), __ppc_mdoio(), | Thread safety | MT-Safe | |__ppc_mdoom() | | | +------------------------------+---------------+---------+ CONFORMING TO
These functions are nonstandard GNU extensions. SEE ALSO
__ppc_set_ppr_med(3) Power ISA, Book II - Section 3.2 ("or" architecture) GNU C Library 2017-09-15 __PPC_YIELD(3)

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