M
mfurgal
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No. The CPUs do not know or care which memory is being tested. If it’s memory from DB1 or DB2. An atomic test and set is being performed, which forces all the CPUs to surrender their cache line to make sure no other CPU is doing an atomic test and set on the same piece of memory. The machine and CPU have no awareness that the memory the test and set is being performed on is for a specific database or shared memory region. You can read about it here: Cache coherence - Wikipedia Or google cache coherence problem and see many articles written on the subject. Mike -- Mike Furgal Director – Database and Pro2 Services PROGRESS 617-803-2870 mfurgal@progress.com
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