DOC HOME SITE MAP MAN PAGES GNU INFO SEARCH PRINT BOOK
 
Tunable parameters

Kernel memory allocator (KMA) parameters

Parameter Dflt Min Max
KMA_PAGEOUT_POOL 0x1000 0 0x100000
KMAGBTIME 30 5 2400


KMA_PAGEOUT_POOL
Controls the size of a chunk of memory that is dedicated for use by the kernel memory allocator while executing in the pageout LWP. It is the number of bytes reserved for the pageout daemon (including overhead). The purpose is to allow pageout operations that might otherwise be blocked waiting for memory to proceed, thereby avoiding deadlock. This value should only be increased if a system hang is observed, and analysis of the kernel's behavior (for example using kdb or crash) shows that a pageout deadlock was responsible.

KMAGBTIME
Specifies how much time, in seconds, there is between successive attempts by the kernel memory allocator to give back unused memory (for possible use by processes or filesystems). Increasing this value increases the kernel allocator's requirement for memory. Decreasing it increases the CPU usage of the giveback attempts.

Next topic: Networking parameters
Previous topic: Kernel debugger (KDB) parameters

© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 22 April 2004