HP-UX Encrypted Volume and File System Performance and Tuning

The conclusions drawn from this these tests are that for a benchmark that more closely approximates a
real application, EVFS can perform near to clear I/O for throughput performance, and that by using
JFS 5.0 and simple VxFS tunes, there is significant improvement in performance available at no cost.
The tuning variables and values are:
• read_ahead = 2 (default = 1)
o (fancy read ahead)
o (multi-thread and non-sequential patterns)
• read_nstream = 10 (default = 1)
o (increase the amount of read-ahead)
• write_nstream = 10 (default = 1)
o (increase the amount of write-behind)