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Eliminate the Confusion Eliminate the Confusion!.

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Presentation on theme: "Eliminate the Confusion Eliminate the Confusion!."— Presentation transcript:

1 Eliminate the Confusion Eliminate the Confusion!

2 Squeezing Bowling Ball down Garden Hose Optimize & Reduce Workload!

3 Different Approach Different Approach…

4 Interactive Response Time 69% - Interactive response time is usually OK, but random slowdowns occur. Can’t find cause – solution appears to be a $100,000 interactive feature card.

5 Daily GANTT Chart - Interactive

6 CPU (seconds) by Subsystem

7 Number of I/Os by Subsystem

8 Skipped Records by Job/User

9 Skipped Records by File/Fields

10 Long Running Batch Jobs 57% - CPU used less than 50%, but batch jobs take a long time & don’t use CPU efficiently. Have been told that a bigger system with more CPU is needed.

11 Daily GANTT Chart – Long Batch

12 Temporary Disk Space Jumps 48% - Disk space jumps from 70 to 90%, could be from temp space used by jobs but have not been able to prove which job is doing it.

13 Disk Navigator – Size of QTEMP by Job

14 Long Nightly Processing 44% - Night processing runs long, one CL program calls 100s of other programs and it takes 6 hrs to run.

15 Job Overview – One Process

16 Job Overview – Several Processes

17 Application Analyzer – By Program Function

18 Appli cation Analy zer – By OS/40 0 Functi on

19 Application Analyzer – Open/Close

20 Java & JDBC Killing System 43% - New web app uses Java & JDBC, when web lookup pages are hit, user waits 2 minutes. System was fine until new app went live.

21 QUSRWRK CPU Seconds

22 QUSRWRK Skipped Records

23 Waiting for Pick Slips 43% - Overall CPU is only 30% used, yet users wait 6 minutes for pick slips to print. When batched, it takes 45 minutes to start printing, which delays product shipping.

24 CPU 30% Used, Jobs in Queue

25 # of Jobs by Job and User

26 Jobs Waiting in Job Queues

27 Waiting 250 Minutes, Runs 1 Second

28 Job Logs Wasting Resources 40% - 500,000 pages of job logs generated every day, logs rarely used, wasting disk space, CPU & I/O.

29 # of Pages by Queue, Job & User

30 Job Description & End CodeJob Description & End Code

31 Mes sage Log ging

32 Job Runs 30,000 Times 38% - Our batch job runs 30,000 times per day, consumes 1 CPU second each time it runs. Ends up being 30% of CPU consumed, constantly spikes system all day.

33 CPU by Job Name

34 # Jobs by Job Name

35 HA Can’t Keep Up 30% - Journal receivers are 10 GB per day, HA can’t keep up.

36 Journal Analyze r

37 Q&A To receive MB Software’s FREE performance evaluation: 1. Register at http://www.mb-software.com 2. Download and install software on AS/400 3. Call (800) 713-5034 to schedule your free performance review session What To Expect: After allowing performance data to accumulate for one full business day, you will log into a secure area of MB Software’s Web site and have a conference call to discuss our findings and how you can gain performance improvements. It’s that easy! Questions & Answers


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