TMF Introduction (G06.26+)

Application Performance
HP NonStop TMF Introduction—522414-002
4-6
Performance Versus Transaction Rate
With a high transaction rate, more records typically are written with every physical
access. Because TMF can sustain a high transaction rate, the benefits of TMF
protection increase as the transaction rate increases.
Figure 4-4. Throughput Comparison Depending on Transaction Rate
Low Transaction Rate
(Few per cycle)
Legend
Time for an I/O cycle —
read, update, write
High Transaction Rate
(Thousands per cycle)
Represents I/O for a transaction,
assuming all are similar
Transactions Transactions
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