03-22-2005
=)
It is the same as the load average when you run a 'uptime'
Do a man page on uptime:
'run queue over the last 1, 5 and 15 minutes.'
Performance is subjective...
You talking about throughout or latency or response time or bottleneck or etc..... They are all performance..
If you are looking for a magic number, I supposed for UltraSPARC II, Adrian cockroft from SUN mentioned preferably less than 4~5 runnable jobs per CPUs, (So you see, it depends on the quality and quantity of CPUs you have)
to avoid spending too much time in context-switching.
This load average is the same as the 'r' you get from vmstat. Some people call this CPU queue length.
If you are asking about this to solve a performance problem, you need a baseline to compare.
E.g.
I have a Oracle DataMart and Warehouse of 6 CPUs (UltraSPARC III), often hover around 40 jobs. No user complain.
I also have another performance sensitive Oracle OLTP DB with 6 CPUs (UltraSPARC III). Once the queue hits 20, user complain.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I need a script which uses prstat command to check the performance . if a load averages crosses some threshold means I should receive the mail. this script should always run in back ground.
Kindly help me on this. (1 Reply)
Discussion started by: jayaramanit
1 Replies
2. Solaris
Hi All,
Operating System and Version: SunOS,Solaris 10 sparc(64 bit)
RDBMS Version: 10.2.0.4.0
But the prstat logs of my system shows:-
NPROC USERNAME SWAP RSS MEMORY TIME CPU
83 cemsbin 5204M 3604M 22% 53:46:00 6.7%
2 adm 244M 240M 1.5% 15:13:53 3.5%
77 oracle 17G 10G 65% 4:24:47... (0 Replies)
Discussion started by: dipashre
0 Replies
3. Solaris
Good Evening everyone,
I am confused about prstat O/P as it shows memory values which are different from actual value.Below is the O/P of prstat command and swap commands.
NPROC USERNAME SIZE RSS MEMORY TIME CPU
48 root 2113M 1590M 1.2% 45:09.39 32%
31 daemon ... (7 Replies)
Discussion started by: vvpotugunta
7 Replies
4. Shell Programming and Scripting
Hi,
Is there any way by which the unit of size and rss will be only GB while I am running the prstat command? (2 Replies)
Discussion started by: King Nothing
2 Replies
5. Shell Programming and Scripting
hi all,
am writing a ksh script on solaris 9 to get the number of threads taken by a process. am using the prstat -p command to do this.
output i get is :
:"/export/home/user" > prstat -p 25528 | cut -f2 -d/
NLWP
203
Total: 1 processes, 203 lwps, load averages: 2.58, 3.24, 3.62... (2 Replies)
Discussion started by: cesarNZ
2 Replies
6. 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
7. Shell Programming and Scripting
hi all,
have a ksh script where i am doing a prstat -m -u osuser 1 1 >> $FILE_NAME but for some reason it only writes 15 lines wheres when i run the same command manually from command prompt it prints out 60 lines.
why is it not writing the full 60 lines to the file ??
ta. (1 Reply)
Discussion started by: cesarNZ
1 Replies
8. Shell Programming and Scripting
Hi,
I know how to figure out the list of PID from my application name :
ptree `pgrep MyApp` | awk '{print $1}'
But I dont know how to pipe it for prstat -p <pidlist>
ptree `pgrep MyApp` | awk '{print $1}' | prstat -p ???
I would like to monitor every ptree PID from my application. ... (4 Replies)
Discussion started by: RickTrader
4 Replies
9. Shell Programming and Scripting
trying to have prstat into a file on a Solaris machine.
Would like to have the prstat run from a cron every 30 min.
print 300 lines+ date.
Date is not printed, only the prstat, and ksh does not end, it stays running...
#!/bin/ksh
# ----------------------------------------------------
#... (4 Replies)
Discussion started by: pointer
4 Replies
10. Solaris
On Solaris 8, when I try to run prstat 30 5 as a background process, the command exits 1-2 seconds after it's initiated instead of the 30 seconds I specified.
It runs fine in interactive mode.
Is there a workaround to this I could use? (Upgrading the package is not an option)
A link to... (1 Reply)
Discussion started by: Devyn
1 Replies
LEARN ABOUT MOJAVE
topsysproc
topsysproc(1m) USER COMMANDS topsysproc(1m)
NAME
topsysproc - top syscalls by process name. Uses DTrace.
SYNOPSIS
topsysproc [-Cs] [interval [count]]
DESCRIPTION
This program continually prints a report of the number of system calls by process name, and refreshes the display every 1 second or as
specified at the command line. Similar data can be fetched with "prstat -m".
Since this uses DTrace, only users with root privileges can run this command.
OPTIONS
-C don't clear the screen
-s print per second values
EXAMPLES
Default output, 1 second updates,
# topsysproc
Print every 5 seconds,
# topsysproc 5
Print a scrolling output,
# topsysproc -C
FIELDS
load avg
load averages, see uptime(1)
syscalls
total syscalls in this interval
syscalls/s
syscalls per second
PROCESS
process name
COUNT total syscalls in this interval
COUNT/s
syscalls per second
NOTES
There may be several PIDs with the same process name.
DOCUMENTATION
See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
bose descriptions explaining the output.
EXIT
topsysproc will run until Ctrl-C is hit.
AUTHOR
Brendan Gregg [Sydney, Australia]
SEE ALSO
dtrace(1M), prstat(1M)
version 0.90 Jun 13, 2005 topsysproc(1m)