07-31-2008
How to find the memory in HP-Unix?
Hi,
I have a HP-Unix server, version B.11.23. Can someone tell me how to find out the physical memory & virtual memory (swap) in my server? & what is Page fault? & is there any limitation for page fault?
Thank you. Your help is appreciated.
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LEARN ABOUT DEBIAN
vm_fault_prefault
VM_FAULT_PREFAULT(9) BSD Kernel Developer's Manual VM_FAULT_PREFAULT(9)
NAME
vm_fault_prefault -- cluster page faults into a process's address space
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/pmap.h>
void
vm_fault_prefault(pmap_t pmap, vm_offset_t addra, vm_map_entry_t entry);
DESCRIPTION
The vm_fault_prefault() function provides a means of clustering pagefaults into a process's address space. It operates upon the physical map
pmap. The entry argument specifies the entry to be prefaulted; the addra argument specifies the beginning of the mapping in the process's
virtual address space.
It is typically called by vm_fault() after the first page fault. It benefits the execve(2) system call by eliminating repetitive calls to
vm_fault(), which would otherwise be made to bring the process's executable pages into physical memory.
IMPLEMENTATION NOTES
This is a machine-independent function which calls the machine-dependent pmap_is_prefaultable(9) helper function to determine if a page may
be prefaulted into physical memory.
SEE ALSO
execve(2), pmap_is_prefaultable(9)
AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>.
BSD
July 21, 2003 BSD