Introduction to HP-UX Kernel Tuning - OpenMPE

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maxswapchunks, swchunk - Swap Space • Maximum addressing limits for swap • Usable swap is defined as: − maxswapchunks * swchunk * dev_bsize where: swchunk=2048 and dev_bsize=1024 • Leave swchunk <strong>to</strong> default • Formula simplifies <strong>to</strong>: − maxswapchunks=DESIRED-SWAP / 2097152 or − Maxswapchunks=DESIRED-SWAP / 2megs 22
nswapdev, nswapfs • nswapdev - max number of swap devices • nswapfs - max number of filesystems that will be used for swap − filesystem swap performance − one way assignment policy (not returned) 23
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: Virtual Memory (swap) • maxswapch
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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