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--- aix:virtual_cpu [2021/04/02 21:27]
manu
+++ aix:virtual_cpu [2021/04/02 21:32] (current)
manu
@@ Line 1: / Line 1: @@
 ====== Power Processor ======
-On IBM Power server, **a processor is a core**. A core is located on MCM (multichip module) which currently contain 8 cores. On Power server the performance of a server is (nb cores) x (perf/core), it's linear different from x86 cores.
+On IBM Power server, **a processor is a core**. A core is located on MCM (multichip module) which currently contain 8 cores... up to 20 cores. On Power server the performance of a server is (nb cores) x (perf/core), it's linear different from x86 cores.
 ===== Virtual Processor / Physical Processor ======
@@ Line 15: / Line 15: @@
 ** <color red>My recommandations:</color> **
-Use always shared processors and uncapped option with default value for LPAR (or adjust to the LPAR use), and 191 for VIOS.
+Use always shared processors and uncapped option with default value for LPAR (or adjust to the LPAR use), and 255 for VIOS (maximum priority, if VIOS are high loaded, all partitions will have performance issues).

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