Introduction to HP-UX Kernel Tuning - OpenMPE

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ninode - kernel inode cache • In-core cache of unique current and recent HFS inodes locations • Speeds reopens, multi-process file access • Keep small for typical databases, larger for development and NFS (HFS only) • ninode < nfile • Formula may be way <strong>to</strong>o large (vxfs) 8
ncdnode • In-core cache of unique current and recent CDROM inodes • Speeds reopens, multi-process file access • Generally very small (one user for CDROM) • Copy CD’s <strong>to</strong> hard disk for multi-user access 9
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: nflocks - max file locks • Maximu
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 and 24: nswapdev, nswapfs • nswapdev - ma
Page 25 and 26: swapmem_on RAM 1 Gb SWAP 500 meg sw
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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