8 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hi,
I have a code that will show one day ahead, how to make it show two days ahead
p-dev1-db-tst:/$ day=$(TZ=IST-24 date +%d)
p-dev1-db-tst:/$ echo $day
17
p-dev1-db-tst:/$
Regards, Adam (5 Replies)
Discussion started by: answer
5 Replies
2. AIX
Hello!
I have a LPAR with 51GB RAM
topas shows 21% of memory for client pages (~11Gb)
svmon -G show 2906772 client pages in use (~11Gb)
but then i try to investigate per process client memory usage
svmon -P -O filtertype=client
and summarize inuse column, i get only 347880 pages... (1 Reply)
Discussion started by: sys
1 Replies
3. AIX
Hi,
I have a bit of a NFS problem on AiX 6.1 : When I set the mount to cio and dio - needed for a database app - Everything slows down. The following is copying 700mb, top one is a normal mount bottom one is a mount with the cio/dio option enabled :
# ./a.sh
Wed Jan 11 11:41:24 GMT 2012... (5 Replies)
Discussion started by: AJCG1976
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4. Red Hat
Hi Friends,
Please help me to understand, how to enable async disk IO and Direct disk IO in ext3 filesystem on rhel5.
Regards,
Arumon (0 Replies)
Discussion started by: arumon
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5. AIX
Hi all,
Can anyone define the difference between jfs and jfs2 filesystem as well as usage of jfs log files....
Thanks.... (7 Replies)
Discussion started by: sumathi.k
7 Replies
6. Shell Programming and Scripting
I would like to search a router config file for "ip address $ip", once found, I want to grab the line just before that contains "interface $interfacetype"
basically saying, 10.3.127.9 is assigned to "Loopback1" given the below as an example.
interface Loopback1
ip address 10.3.127.9... (1 Reply)
Discussion started by: popeye
1 Replies
7. AIX
hi all,
can sumbody give me a link which gives the basic layout of JFS, JFS2 and the veritas file system.
and i also want to know about the data structures used in this filsystem
thanx in advance (0 Replies)
Discussion started by: anwerreyaz
0 Replies
8. HP-UX
One cool thing about unix is that it predicts disk blocks that you may need and tries to have them in core before you need them. Over the years, various unix vendors tried various algorithms to improve performance. HP has patented their latest algorithm...
Multi-threaded Read Ahead Prediction... (0 Replies)
Discussion started by: Perderabo
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VM_PAGE_GRAB(9) BSD Kernel Developer's Manual VM_PAGE_GRAB(9)
NAME
vm_page_grab -- returns a page from an object
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/vm_page.h>
vm_page_t
vm_page_grab(vm_object_t object, vm_pindex_t pindex, int allocflags);
DESCRIPTION
The vm_page_grab() function returns the page at pindex from the given object. If the page exists and is busy, vm_page_grab() will sleep
while waiting for it. If the page does not exist, it is allocated. The function sleeps until the allocation request can be satisfied.
The function requires the object to be locked on entry, and returns with the object locked. If the vm_page_grab() function sleeps for any
reason, the object lock is temporary dropped.
The vm_page_grab() supports all of the flags supported by vm_page_alloc(9). In addition, vm_page_grab() supports the following flags:
VM_ALLOC_IGN_SBUSY When waiting for the busy state of the existing page to drain, only test for exclusive busy; ignore the shared busy
counter.
RETURN VALUES
The vm_page_grab() always returns the page.
SEE ALSO
vm_page_alloc(9)
AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.
BSD
August 23, 2013 BSD