266IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
If this sequence of events is widespread, it is known as thrashing and is normally indicative of
insufficient RAM for the present workload. Thrashing is extremely detrimental to system
performance, as the CPU and I/O loads that can be generated in such a situation can quickly
outweigh the load imposed by system's real work. In extreme cases, the system may actually
do no useful work, spending all its resources on moving pages to and from memory.
8.2.3 Understanding and tuning the daemons
A daemon is comparable to a service in Windows 2000. Daemons provide different services. ...
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