On 12/14/2017 1:13 PM, Peter Hunkeler wrote:
The APAR decribes that marking frames as freemained frames avoids signaling all processors, which does not scale well with the large number of processors in z13 and newer machines. It probably avoids updating the TLBs.
It avoids the issuance of IPTE (an expensive instruction when many CPs are present) for each frame...
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