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Full Discussion: Copy on Write page faults
Operating Systems HP-UX Copy on Write page faults Post 18704 by Perderabo on Tuesday 2nd of April 2002 07:56:22 AM
Old 04-02-2002
This is going to take a little legwork, but I can get you pointed in the right direction.

That line:
extern struct vmmeter cnt, rate, sum;
is the key. You will need to look at those structures to see how they're used. I see all three when I run "nm /stand/vmunix".

To read them, you need to run nlist() on vmunix to get the address. Then open /dev/kmem and lseek() to the address that you got from nlist(). And finally just read() the structure.

It might be useful to look at the source code for some versions of vmstat. This thread lists some locations that have source code.
 

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ARP(8C) 																   ARP(8C)

NAME
arp - address resolution display and control SYNOPSIS
arp hostname arp -a [ vmunix ] [ kmem ] arp -d hostname arp -s hostname ether_addr [ temp ] [ pub ] [ trail ] arp -f filename DESCRIPTION
The arp program displays and modifies the Internet-to-Ethernet address translation tables used by the address resolution protocol (arp(4p)). With no flags, the program displays the current ARP entry for hostname. The host may be specified by name or by number, using Internet dot notation. With the -a flag, the program displays all of the current ARP entries by reading the table from the file kmem (default /dev/kmem) based on the kernel file vmunix (default /vmunix). With the -d flag, a super-user may delete an entry for the host called hostname. The -s flag is given to create an ARP entry for the host called hostname with the Ethernet address ether_addr. The Ethernet address is given as six hex bytes separated by colons. The entry will be permanent unless the word temp is given in the command. If the word pub is given, the entry will be "published"; i.e., this system will act as an ARP server, responding to requests for hostname even though the host address is not its own. The word trail indicates that trailer encapsulations may be sent to this host. The -f flag causes the file filename to be read and multiple entries to be set in the ARP tables. Entries in the file should be of the form hostname ether_addr [ temp ] [ pub ] [ trail ] with argument meanings as given above. SEE ALSO
inet(3N), arp(4P), ifconfig(8C) 4.3 Berkeley Distribution May 20, 1986 ARP(8C)
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