Introduction to HP-UX Kernel Tuning - OpenMPE

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swapmem_on • <strong>HP</strong>-<strong>UX</strong> normally needs 1:1 RAM:swap •swapmem_on creates an overallocation policy, typically 75% of RAM • Can be used in both low RAM and high RAM systems 24
swapmem_on RAM 1 Gb SWAP 500 meg swapmem_on=0 Unusable for processes In this example, only 500 megs is usable for processes since Virtual Memory is only 500 megs. 25
Page 1 and 2: Introduction to HP-UX Kernel Tuning
Page 3 and 4: Vocabulary • Kernel file −/stan
Page 5 and 6: Filesystem Parameters • nfile, nf
Page 7 and 8: nflocks - max file locks • Maximu
Page 9 and 10: ncdnode • In-core cache of unique
Page 11 and 12: maxfiles, maxfiles_lim • Single p
Page 13 and 14: default_disk_ir - immediate reporti
Page 15 and 16: Process Parameters • nproc, maxup
Page 17 and 18: maxdsiz - data segment • Maximum
Page 19 and 20: maxtsiz - text size • Unchanging
Page 21 and 22: Virtual Memory (swap) • maxswapch
Page 23: nswapdev, nswapfs • nswapdev - ma
Page 27 and 28: swapmem_on RAM 1 Gb SWAP 500 meg sw
Page 29 and 30: Some last tips • Web help: http:

Introduction to HP-UX Kernel Tuning - OpenMPE

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