12-23-2013
You are experiencing some paging (see po column and observe swap and free)... the fix (usually) is more memory. When you have low cpu utilization and people are complaining, this is often times the cause.
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1. UNIX for Advanced & Expert Users
i have 2 question about vmstat
1)
pin (pagein) output of vmstat is always zero for our system
what is the meaning of this?
(pout significantly changes depending on the running processes)
2)
sometimes react output
of vmstat is given in K like 44K
sometimes it is given without any unit... (1 Reply)
Discussion started by: gfhgfnhhn
1 Replies
2. UNIX for Dummies Questions & Answers
Hello all
This is a sample vmstat output ...
$ vmstat 2 2
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr hx hx hx hx in sy cs us sy id
1 0 0 23105784 7810488 323 767 1742 5 5 0 0 0 0 0 0 683 780 457 43 ... (9 Replies)
Discussion started by: luft
9 Replies
3. Shell Programming and Scripting
I need to capture the vmstat output of a server every 5 minutes, in a text filename with the name in the format vmoutput. yesterday's date.txt. I need to get the vmstat o/p for the whole day with 5 minutes interval and send it (preferably ftp) to my local desktop folder.
eg: vmstat 300... (1 Reply)
Discussion started by: yuvanash
1 Replies
4. UNIX for Advanced & Expert Users
Hello,
I'm seeing this problem with vmstat, where the first line of output always has the same CPU statistics. For example:
neked@nekedmachine:~$ date && vmstat
Fri Jul 24 06:57:08 EDT 2009
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b swpd ... (0 Replies)
Discussion started by: neked
0 Replies
5. AIX
Hello everybody, When i run Nmon the output is really incomprehensible
vmstat 5
System configuration: lcpu=16 mem=24576MB ent=4.00
kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------------------... (3 Replies)
Discussion started by: Vit0_Corleone
3 Replies
6. Solaris
Hi all.
I need some assistance with my vmstat output.
We have several oracle db's running on our solaris machine:
SunOS rcworaprd 5.9 Generic_112233-07 sun4u sparc SUNW,Sun-Fire-480R
Recently I bumped up our main Oracle database to use 6 GB instead of 4 GB as vmstat output was showing... (1 Reply)
Discussion started by: jamie_collins
1 Replies
7. AIX
Hi AIX Expert,
the fr (page freed/page replacement) and sr (pages scanned by page-replacement algorithm) values from the vmstat output (see below please) are very high. I usually see this high value during the oracle database backup. In addition, the page scan/page steal/ page faults values... (7 Replies)
Discussion started by: Beginer0705
7 Replies
8. Solaris
Hi,
I am porting a piece of code from Solaris to Linux. Code uses VMSTAT command.
On Solaris machine VMSTAT output is following:
uname -a:
SunOS rgsm01 5.9 Generic_118558-03 sun4u sparc SUNW,Sun-Fire-V440
vmstat:
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr m1 m2... (3 Replies)
Discussion started by: Basant Mishra
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9. UNIX for Dummies Questions & Answers
Hi,
I have old SCO O/S. System keeps crashing. I made lot of changes to kernel but so for nothing helped. I wrote a script which takes netstat -an output every one minute. I saw some thing right before the system crashed. Not sure if this means anything..
uname -a
SCO_SV djx2 3.2... (2 Replies)
Discussion started by: samnyc
2 Replies
10. Solaris
Hi,
Recently from the vmstat output in the image attached, the first line of the cpu idle column shows a value of 15. Although the subsequent values show higher than 90, is there a reason why the first value is so low?
Is this a problem?
Thanks. (4 Replies)
Discussion started by: anaigini45
4 Replies
FREE(1) Linux User's Manual FREE(1)
NAME
free - Display amount of free and used memory in the system
SYNOPSIS
free [-b|-k|-m|-g] [-c count] [-l] [-o] [-t] [-s delay] [-V]
DESCRIPTION
free displays the total amount of free and used physical and swap memory in the system, as well as the buffers used by the kernel. The
shared memory column should be ignored; it is obsolete.
OPTIONS
-b Display the amount of memory in bytes.
-c count
Display the result count times. Requires the -s option.
-g Display the amount of memory in gigabytes.
-k Display the amount of memory in kilobytes. This is the default.
-l Show detailed low and high memory statistics.
-m Display the amount of memory in megabytes.
-o Display the output in old format, the only difference being this option will disable the display of the "buffer adjusted" line.
-s Continuously display the result delay seconds apart. You may actually specify any floating point number for delay, usleep(3) is used
for microsecond resolution delay times.
-t Display a line showing the column totals.
-V Display version information.
FILES
/proc/meminfo memory information
AUTHORS
Written by Brian Edmonds.
Send bug reports to <albert@users.sf.net>
SEE ALSO
ps(1), slabtop(1), top(1), vmstat(8).
Cohesive Systems 5 Oct 2009 FREE(1)