AIX 5.2 performance question Post: 302256900

Sponsored Content

Operating Systems AIX AIX 5.2 performance question Post 302256900 by jhall on Monday 10th of November 2008 10:27:06 PM

11-10-2008

Registered User

AIX 5.2 performance issues

Here is the oslevel. I cannot upgrade the system yet, because I have no method to get a mksysb first. There is no tape drive or NIM server.

Code:

# oslevel -r
5200-01

Here is the vmstat:

Code:

# vmstat -vs
            957359576 total address trans. faults
            631160014 page ins
            592457826 page outs
                68019 paging space page ins
               179862 paging space page outs
                    0 total reclaims
            409452040 zero filled pages faults
               363280 executable filled pages faults
           1472454509 pages examined by clock
                 1406 revolutions of the clock hand
            791718475 pages freed by the clock
              1983193 backtracks
                    0 lock misses
                 3736 free frame waits
                   18 extend XPT waits
             78271674 pending I/O waits
            265072204 start I/Os
            263643301 iodones
           3096117518 cpu context switches
           2316883440 device interrupts
                    0 software interrupts
                    0 traps
         569608905271 syscalls
              1048576 memory pages
               978110 lruable pages
                  123 free pages
                    1 memory pools
               115121 pinned pages
                 80.1 maxpin percentage
                 20.0 minperm percentage
                 80.0 maxperm percentage
                 87.7 numperm percentage
               858535 file pages
                  0.0 compressed percentage
                    0 compressed pages
                  0.0 numclient percentage
                 80.0 maxclient percentage
                  305 client pages
                    0 remote pageouts scheduled
                  284 pending disk I/Os blocked with no pbuf
                 2481 paging space I/Os blocked with no psbuf
             20770484 filesystem I/Os blocked with no fsbuf
                    0 client filesystem I/Os blocked with no fsbuf
                   73 external pager filesystem I/Os blocked with no fsbuf

This system is running a banking application that is written in cobol. The main process that takes up resources is "runcobol"

Right now, I don't have any option to reallocate the vg's and lv's. There are no external or SAN attached drives. The system uses only the internal disks and they are are all used. I would like to recommend the purchase of a small SAN device, but I need data to back that recommendation up.

I inherited this system and am working to correct all of the issues.

Thanks again!

jhall

View Public Profile for jhall

Find all posts by jhall

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

AIX performance

Hiya all, I am a newbie sysadmin to AIX, i have worked on HPUX for 3 years. I have started a new role with in an IBM house and because there is me and one other there are a couple of issues I cannot work out: We havehad a production server slowing down processing batch jbs over the past...

2. AIX

Performance testing on AIX

I'm doing performance testing for one application which works on AIX. But I don't know which performance parameters of memory need to be collected. Now, I just know very few: 1. page in 2. page out 3. fre They are all collected by "vmstat" command. I want to know, except for above...

3. AIX

Performance issue in AIX 5.3

Is there is any way to increase the CPU utilization of a Embedded SQL program in AIX 5.3 .. for performance purpose.

4. AIX

performance issue in 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...

5. AIX

AIX performance issue

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...

6. AIX

Need some help for AIX performance monitoring

Hello I am new user of AIX; I have only basic knowledge of the UNIX commands, and I want to create script that will monitor the performance and resources usage on AIX 6.1 machine. Basically I wan to start a loop that will grab, every 10 seconds, the CPU usage, the memory usage, the disk usage,...

7. AIX

Asynchronous I/O on AIX and DB performance

Hi, I would like to hear your thoughts about this. We are running our Data warehouse on DB2 DPF (partition environment) and I have notice that sometimes we hit the Asynchronous-I/O-Processes peak. DB2 relies heavily on Asynchronous I/O so I would believe this has an negative impact.We are...

8. AIX

AIX 5.3 performance problems

Hello, I encounter some performance issues on my AIX 5.3 server running in a LPAR on a P520. How do I investigate performance issues in AIX. Is there any kind of procedure that takes me to the steps to investigate my server and find the sub systems that is causing the issues? The performance...

9. AIX

Performance stats from AIX 6

Hi, I'm supposed to capture many performance stats on AIX 6 and stuck up with below: Priority queue Disk cache hit% Page out rate Swap out rate Memory queue I see vmstatis helpful for "page out" but not sure how to get the "rate". Could anyone please let me know how to get these...

10. AIX

IBM AIX I/O Performance Tuning

I have a IBM Power9 server coupled with a NVMe StorWize V7000 GEN3 storage, doing some benchmarks and noticing that single thread I/O (80% Read / 20% Write, common OLTP I/O profile) seems slow. ./xdisk -R0 -r80 -b 8k -M 1 -f /usr1/testing -t60 -OD -V BS Proc AIO read% IO Flag IO/s ...

LEARN ABOUT DEBIAN

bup-drecurse

bup-drecurse(1) 					      General Commands Manual						   bup-drecurse(1)

NAME

       bup-drecurse - recursively list files in your filesystem

SYNOPSIS

       bup drecurse [-x] [-q] [--exclude path] [--exclude-from filename] [--profile] <path>

DESCRIPTION

       bup drecurse traverses files in the filesystem in a way similar to find(1).  In most cases, you should use find(1) instead.

       This program is useful mainly for testing the file traversal algorithm used in bup-index(1).

       Note  that filenames are returned in reverse alphabetical order, as in bup-index(1).  This is important because you can't generate the hash
       of a parent directory until you have generated the hashes of all its children.  When listing files in reverse order, the  parent  directory
       will come after its children, making this easy.

OPTIONS

       -x, --xdev, --one-file-system
	      don't cross filesystem boundaries.

       -q, --quiet
	      don't print filenames as they are encountered.  Useful when testing performance of the traversal algorithms.

       --exclude=path
	      a path to exclude from the backup (can be used more than once)

       --exclude-from=filename
	      a file that contains exclude paths (can be used more than once)

       --profile
	      print profiling information upon completion.  Useful when testing performance of the traversal algorithms.

EXAMPLE

	      bup drecurse -x /

SEE ALSO

       bup-index(1)

BUP

       Part of the bup(1) suite.

AUTHORS

       Avery Pennarun <apenwarr@gmail.com>.

Bup unknown-															   bup-drecurse(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

AIX performance

Discussion started by: chlawren

2. AIX

Performance testing on AIX

Discussion started by: adasong

3. AIX

Performance issue in AIX 5.3

Discussion started by: Gyanendra Awast

4. AIX

performance issue in AIX

Discussion started by: mad_man12