10-26-2010
on oracle 10 you can also run the usefull AWR report which can almost automagically generate an HTML report at a chosen time windows and will show you many use infos about the load of your system (memory consumtion, heavy sql statement, lock, latch, ...)
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello,
The last line of prstat shows load average.
I am unable to figure out what actually it is.
I have read the man pages and also googled, all for no use.
Can somebody help me, as to what should be the avg. load of the system for best performance and how is this load of prstat calculated. (6 Replies)
Discussion started by: vibhor_agarwali
6 Replies
2. Post Here to Contact Site Administrators and Moderators
Could RSS-support mod be installed for this forum? (3 Replies)
Discussion started by: eugrus
3 Replies
3. Solaris
I have a question about the accuracy of prstat.
I did a 'prstat -t' and it shows 99% of my memory is occupied by oracle.
NPROC USERNAME SIZE RSS MEMORY TIME CPU
194 oracle 343G 340G 99% 86:17.24 56%
However, 'top' shows I still have 7762meg of memory free.
Memory: 16G real, 7762M... (4 Replies)
Discussion started by: zen03
4 Replies
4. Solaris
hi all,
was trying to figure out how busy my app was by looking at the performance of the app server. did a 'prstat -s rss' command to find the app servers using most memory.
Found a command 'prstat -m' which is meant to show more details on each pid but the output of this command... (1 Reply)
Discussion started by: cesarNZ
1 Replies
5. Solaris
Hi Guys,
I have observed the Oracle (DB USER) is utilizing 100% of the memory in the prstat -a output. I am bit confused is it normal and if not how to bring it down? ABout the machine it is a SunOS 5.10 Generic_125100-10 sun4v sparc SUNW,Sun-Fire-T200.
Please see below output of prstat -a... (12 Replies)
Discussion started by: Asteroid
12 Replies
6. Solaris
Hi Export,
i execute 'top' command to show the free memory in Solaris host, but the read is much lower than the RSS value shown in prstat command. Which one can reflect the real status and it is possible the difference caused by any patch of OS?
Top command (only 883 memory is free)... (3 Replies)
Discussion started by: eiga
3 Replies
7. Solaris
Hi,
I have some question about memory in Solaris.
How it's possible that prstat -a show me that some process using 230M RSS and when I'm using pmap -x show me that this same process using only 90M RSS ? (0 Replies)
Discussion started by: deivo
0 Replies
8. Solaris
Hi,
someone please explain me what's the difference b/w rss and swap in PRSTAT.
i'm getting output like below,
NPROC USERNAME SWAP RSS MEMORY TIME CPU
70 weblogic 48G 46G 73% 449:17:03 0.4%
swap always remains... (11 Replies)
Discussion started by: sunnys7143
11 Replies
9. Solaris
Hi,
When I sum the RSS number in the ps command for a specific user and compare it with the RSS values of the prstat command of the same user - there is a big difference.
Server details: Solaris 10 5/09 s10s_u7wos_08 SPARC
prstat output:
NPROC USERNAME SWAP RSS MEMORY TIME ... (2 Replies)
Discussion started by: amitlib
2 Replies
LEARN ABOUT CENTOS
powertop
POWERTOP(8) powertop manual POWERTOP(8)
NAME
powertop - a power consumption and power management diagnosis tool.
SYNOPSIS
powertop [ options ]
DESCRIPTION
powertop is a program that helps to diagnose various issues with power consumption and power management. It also has an interactive mode
allowing one to experiment with various power management settings. When invoking powertop without arguments powertop starts in interactive
mode.
OPTIONS
--calibrate
runs powertop in calibration mode. When running on battery, powertop can track power consumption as well as system activity. When
there are enough measurements, powertop can start to report power estimates. One can get more accurate estimates by using this
option to enable a calibration cycle. This will cycle through various display levels and USB device activities and workloads.
--csv[=FILENAME]
generate a CSV report. If a filename is not specified then the default name "powertop.csv" is used. The CSV report can be used for
reporting and data analysis.
--debug
run in "debug" mode.
--extech=devnode
use the Extech Power Analyzer for measurements. This allows one to specify the serial device node of the serial to USB adaptor con-
necting to the Extech Power Analyzer, for example /dev/ttyUSB0.
--help
show the help message.
--html[=FILENAME]
generate an HTML report. If a filename is not specified then the default name "powertop.html" is used. The HTML report can be sent
to others to help diagnose power issues.
--iteration[=iterations]
number of times to run each test.
--workload[=workload]
file to execute for workload.
--quiet
supress stderr output.
--time[=seconds]
generate a report for a specified number of seconds.
--version
print version information and exit.
BUGS
Send bug reports to <powertop@lists.01.org>
SEE ALSO
The program is more fully described at https://01.org/powertop
AUTHOR
powertop was written by Arjan van de Ven <arjan@linux.intel.com>, and is currently maintained by Chris E Ferron <chris.e.fer-
ron@linux.intel.com>.
Linux June 1, 2012 POWERTOP(8)