Hi all!
Working on Oracle v8i/9i on Unix Sun Solaris v8.0.
I am experiencing excessive paging & Swapping.Would like to know the cause.
I guess:could be due to inappropriate setting of Unix Kernel Parameters...
Please correct me if I am wrong!
Thanks&Regards,
Amit. (5 Replies)
Hi Guys: Would like to know how to check system swapping and paging and some theory on how they function. I am an oracle dba and my environment is 8171 on AIX 433. We have a 1GB of RAM on the box and I am educating myself to see how much more SGA can be accommodated on the box and what are the... (2 Replies)
Hello!
Why does my SuSE GNU/Linux machine swap?
I have a Gig of ram, currently 14MBs of free RAM, 724MB - buffers and caches...
That is 685MB of cached RAM, then kernel really should'nt have to swap, It should release cached memory in my thinkin...
It has only swaped 3MB's but still,... (3 Replies)
can anybody explain me the concepts
virtual memory mangement, swapping and paging?
although i roughly know what they are , i need
more solid distinction between them, and also i want to figure out
the relations between them?
do you have any well-defined definitons for this concepts? (2 Replies)
Hi,
I am attempting to replace several similar words with another word in vi. Here is what I have written for the script:
3dTcat -prefix SuperBrik_4WAY_HRF ../JULY10_2007A/results2TENT/stats.JULY10_2007A+tlrc ../JULY10_2007G/results2TENT/stats.JULY10_2007G+tlrc... (1 Reply)
I have some text:
<date>some_date</date>
<text>some_text</text>
<name>some_name<name>
and I want to transform it to smthng like that:
some_name on some_date: some_text
I've tried sed:
sed 's/<text>\(.*\)<\/text>
<name>\(.*\)<\/name>/\2 - \1/'
but it says unterminated... (13 Replies)
Hallo Team,
This is the command that i am running :
grep ",Call Forward Not Reachable" *2013*
this is the output that i am getting (i did a head -10 but the files can be more than 1000)
... (8 Replies)
Hi Guys
I am using SPARC-T4 (chipid 0, clock 2998 MHz), SunOS 5.10 Generic_150400-38 sun4v.
How do I see if the server was doing some swapping like yesterday?
I had a java application error with java.lang.OutOfMemoryError, now I want to check if the server was not doing some swapping at... (4 Replies)
Hi there,
I have a text that I'm trying to format into something more readable. However, I'm stuck in the last step. I've searched and tried things over the internet with no avail.
OS: Mac
After parsing the original text that I won't put here, I managed to get something like this, but this... (8 Replies)
Discussion started by: Kibou
8 Replies
LEARN ABOUT OPENSOLARIS
kstat
kstat(9S) Data Structures for Drivers kstat(9S)NAME
kstat - kernel statistics structure
SYNOPSIS
#include <sys/types.h>
#include <sys/kstat.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI)
DESCRIPTION
Each kernel statistic (kstat) exported by device drivers consists of a header section and a data section. The kstat structure is the header
portion of the statistic.
A driver receives a pointer to a kstat structure from a successful call to kstat_create(9F). Drivers should never allocate a kstat struc-
ture in any other manner.
After allocation, the driver should perform any further initialization needed before calling kstat_install(9F) to actually export the
kstat.
STRUCTURE MEMBERS
void *ks_data; /* kstat type-specif. data */
ulong_t ks_ndata; /* # of type-specif. data
records */
ulong_t ks_data_size; /* total size of kstat data
section */
int (*ks_update)(struct kstat *, int);
void *ks_private; /* arbitrary provider-private
data */
void *ks_lock; /* protects kstat's data */
The members of the kstat structure available to examine or set by a driver are as follows:
ks_data Points to the data portion of the kstat. Either allocated by kstat_create(9F) for the drivers use, or by the driver if it
is using virtual kstats.
ks_ndata The number of data records in this kstat. Set by the ks_update(9E) routine.
ks_data_size The amount of data pointed to by ks_data. Set by the ks_update(9E) routine.
ks_update Pointer to a routine that dynamically updates kstat. This is useful for drivers where the underlying device keeps cheap
hardware statistics, but where extraction is expensive. Instead of constantly keeping the kstat data section up to date,
the driver can supply a ks_update(9E) function that updates the kstat data section on demand. To take advantage of this
feature, set the ks_update field before calling kstat_install(9F).
ks_private Is a private field for the driver's use. Often used in ks_update(9E).
ks_lock Is a pointer to a mutex that protects this kstat. kstat data sections are optionally protected by the per-kstat ks_lock.
If ks_lock is non-NULL, kstat clients (such as /dev/kstat) will acquire this lock for all of their operations on that
kstat. It is up to the kstat provider to decide whether guaranteeing consistent data to kstat clients is sufficiently
important to justify the locking cost. Note, however, that most statistic updates already occur under one of the
provider's mutexes. If the provider sets ks_lock to point to that mutex, then kstat data locking is free. ks_lock is
really of type (kmutex_t*) and is declared as (void*) in the kstat header. That way, users do not have to be exposed to
all of the kernel's lock-related data structures.
SEE ALSO kstat_create(9F)
Writing Device Drivers
SunOS 5.11 4 Apr 1994 kstat(9S)