08-14-2008
Are you running vxfs on any of your disks? If so what version?
There is a version of vxfs that overwrites a memory address that is used by kstat for reporting the vmstat PI values.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have MATLAB INSTALLED IN MY SUN MACHINE >>
WHENEVER I USE IT THE CPU USAGE SHOWS ABT 90%
Seeing the vmstat shows that system calls and context switch counters reach a very high value .
What are these counters ( Man pages do not give much info on that) ....
The only thing i can make out that... (1 Reply)
Discussion started by: DPAI
1 Replies
2. UNIX for Dummies Questions & Answers
Hi,
In the unix command, "vmstat" we get information on Page memory.
what does the "mf" - "minor fault" is?
Regards,
Anent (3 Replies)
Discussion started by: anent
3 Replies
3. UNIX for Dummies Questions & Answers
When I exeute vmstat (e.g. vmstat 30 2),
in some machines I get some wierd result as the first line.
like: -117% or 208% for CPU idle percentage.
But the second line is alright.
Could someone explain this please.
Thanks !
Chaadana (4 Replies)
Discussion started by: chaandana
4 Replies
4. UNIX for Advanced & Expert Users
Hi,
what does mean the free colomne in out put of vmstat ? is it free espace of physical memory or of swap space on hard disk ?
Thank you (4 Replies)
Discussion started by: big123456
4 Replies
5. UNIX for Dummies Questions & Answers
Hi
I wanted to collect data by using vmstat -I 60 >xxxx.txt & using my own account
It was stopped by it self after 2 hours try again same result
We want to collect day date by succession how to collect data using vmstat for day
Thank you (2 Replies)
Discussion started by: Syed_45
2 Replies
6. UNIX for Advanced & Expert Users
what is the relation between the output of vmstat
(cpu/us, cpu/sy, cpu/id) and output of uptime command?
it is said that
"one can think of load average as a percentage of system
utilization during the respective time period"
i have load average values obtained from uptime command
they are... (2 Replies)
Discussion started by: gfhgfnhhn
2 Replies
7. 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
8. Linux
Hi everyone,
I need to see some VM manager performance/behavior information on some Linux boxes regarding pages scanned/activation of the paging algorithm in order to get an idea if a given server needs more memory and is actually paging. In Aix servers, by using the vmstat cmd you... (1 Reply)
Discussion started by: jcpetela
1 Replies
9. Shell Programming and Scripting
Hi
I need to write a script to display VMSTAT every 5 seconds and I just need the memory columns - swap free re and just the numbers and the headers arent required.
For example
bash-3.00$ vmstat 5| awk '{print $4" "$5" "$6}'
disk faults cpu ------ This header isnt required
swap... (3 Replies)
Discussion started by: kapilk
3 Replies
10. Linux
I m checking idle time using vmstat, below are the results
var=$(ssh wmtmgr@$hostname vmstat | tail -1 | awk '{print $15}')
89
and now im subtracting 89 with 100 & im getting expected results
expr 100 - $var
11
Now How can I get the result 11 in one line code? (4 Replies)
Discussion started by: sam@sam
4 Replies
LEARN ABOUT SUNOS
ks_update
ks_update(9E) Driver Entry Points ks_update(9E)
NAME
ks_update - dynamically update kstats
SYNOPSIS
#include <sys/types.h>
#include <sys/kstat.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
int prefix_ks_update(kstat_t *ksp, int rw);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI)
PARAMETERS
ksp Pointer to a kstat(9S) structure.
rw Read/Write flag. Possible values are
KSTAT_READ Update kstat structure statistics from the driver.
KSTAT_WRITE Update driver statistics from the kstat structure.
DESCRIPTION
The kstat mechanism allows for an optional ks_update() function to update kstat data. This is useful for drivers where the underlying
device keeps cheap hardware statistics, but extraction is expensive. Instead of constantly keeping the kstat data section up to date, the
driver can supply a ks_update() function which updates the kstat's data section on demand. To take advantage of this feature, set the
ks_update field before calling kstat_install(9F).
The ks_update() function must have the following structure:
static int
xx_kstat_update(kstat_t *ksp, int rw)
{
if (rw == KSTAT_WRITE) {
/* update the native stats from ksp->ks_data */
/* return EACCES if you don't support this */
} else {
/* update ksp->ks_data from the native stats */
}
return(0);
}
In general, the ks_update() routine may need to refer to provider-private data; for example, it may need a pointer to the provider's raw
statistics. The ks_private field is available for this purpose. Its use is entirely at the provider's discretion.
No kstat locking should be done inside the ks_update() routine. The caller will already be holding the kstat's ks_lock (to ensure consis-
tent data) and will prevent the kstat from being removed.
RETURN VALUES
ks_update() should return
0 For success.
EACCES If KSTAT_WRITE is not allowed.
EIO For any other error.
SEE ALSO
kstat_create(9F), kstat_install(9F), kstat(9S)
Writing Device Drivers
SunOS 5.10 27 May 1994 ks_update(9E)