10 More Discussions You Might Find Interesting
1. AIX
Hi,
We have 2 lpars on p6 blade. One of the lpar is having 3 core cpu with 5gb memory running sybase as database. An EOD process takes 25 min. to complete.
Now we have an lpar on P7 server with entitled cpu capacity of 2 with 16 Gb memory and sybase as database. The EOD process which takes... (17 Replies)
Discussion started by: vjm
17 Replies
2. UNIX for Dummies Questions & Answers
hi I am having a performance issue with the following requirement
i have to create a permutation and combination on a set of three files
such that each record in each file is picked and the output is redirected in
a specific format but it is taking around 70 odd hours to prepare a
combination... (7 Replies)
Discussion started by: mad_man12
7 Replies
3. AIX
Hi Guys,
This is the situation I am in. Provide your views and input where should I start?
I have one P7 test server and a p520 production server. the job is taking pretty long on the P7 test server when compared to the P5 production server. below is the full detail.
Informix... (5 Replies)
Discussion started by: ithinksgreen
5 Replies
4. Shell Programming and Scripting
Hi All,
I have the following script which I use in Nagios to check the health of the applications, the problem with it is that the curl part ($TOTAL) does not return anything after running for 2-3 hrs, even though from command line the script runs fine but not from Nagios.
There are 17... (1 Reply)
Discussion started by: jacki
1 Replies
5. AIX
Gurus, i have process that runs 5 times a day.
it runs normally (takes about 1 hour) to complete in 3 runs
but it is takes about ( 3 hrs to complete) two times
So i need to figure out why it takes significanlty high time during
those 2 runs.
The process is a shell script that connect to... (2 Replies)
Discussion started by: mad_man12
2 Replies
6. UNIX for Advanced & Expert Users
In my C program i am using very large file(approx 400MB) to read parts of it frequently. But due to large file the performance of the program goes down very badly. It shows very high I/O usage and I/O wait time.
My question is, What are the ways to optimize or tune I/O on linux or how i can get... (10 Replies)
Discussion started by: mavens
10 Replies
7. AIX
Hi All,
I am getting a performance issue in expect5.43.0 library on IBM AIX 5.3. When I have used exp_fexpectv call for pattern matching with the expect string, the execution latency of the call is approximately 200 ms. In that way, I am able to complete only 4 or 5 transactions per... (2 Replies)
Discussion started by: ravindra_maddal
2 Replies
8. Shell Programming and Scripting
I want to read a file.
is it good to use File I/O or shell script??
which one is the best option? (1 Reply)
Discussion started by: vishwaraj
1 Replies
9. UNIX for Advanced & Expert Users
Hi,
on a linux server I have the following :
vmstat 2 10
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
0 4 0 675236 39836 206060 1617660 3 3 3 6 8 7 1 1 ... (1 Reply)
Discussion started by: big123456
1 Replies
10. AIX
We have a AIX v5.3 on a p5 system with a poor performing Ingres database.
We added one CPU to the system to see if this would help. Now there are two CPU's.
with sar and topas -P I see good results: CPU usage around 30%
with topas I only see good results in the process output screen, the... (1 Reply)
Discussion started by: rein
1 Replies
PMC(1) BSD General Commands Manual PMC(1)
NAME
pmc -- performance-monitoring counter interface for command execution
SYNOPSIS
pmc -h
pmc -C
pmc -c event command [options ...]
DESCRIPTION
pmc is a means of using a processor's performance-monitoring counter (PMC) facility to measure various aspects of a program's execution. It
is meant to be used in a fashion similar to time(1).
The arguments are as follows:
-h Display a list of performance counter events available on the system.
-C Cancel any performance counters that are currently running.
-c event
Count the event specified by event while running the command.
DIAGNOSTICS
PMC support is not compiled into the kernel Performance-monitoring counter support has not been compiled into the kernel. It may be
included using the PERFCTRS option. See options(4) for details.
PMC counters are not supported by CPU Performance-monitoring counters are not available for the CPU.
SEE ALSO
time(1), options(4)
HISTORY
The pmc command first appeared in NetBSD 1.6.
AUTHORS
The pmc command was written by Frank van der Linden <fvdl@wasabisystems.com>. The kernel support for reading performance counters on the
i386 architecture was written by
Jason R. Thorpe <thorpej@zembu.com>.
BUGS
The pmc command currently only supports performance-monitoring counters on the i386 architecture.
BSD
October 24, 2000 BSD
