87 lines
5.9 KiB
HTML
87 lines
5.9 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Performance information and QHST" />
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<meta name="abstract" content="Performance information is not displayed as text on message CPF1164. Because the message is in the QHST log, users can write application programs to retrieve this data." />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<title>Performance information and QHST</title>
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</head>
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<body id="rzaksperformanceinfoqhist"><a name="rzaksperformanceinfoqhist"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Performance information and QHST</h1>
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<div><p>Performance information is not displayed as text on message CPF1164.
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Because the message is in the QHST log, users can write application programs
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to retrieve this data. </p>
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<p>The performance information is passed as a variable length replacement
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text value. This means that the data is in a structure within the first entry
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being the length of the data. The size of the length field is not included
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in the length.</p>
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<p><strong>Time and Date:</strong> The first data fields in the structure are the times
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and dates that the job entered the system and when the first routing step
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for the job was started. The times are in the format 'hh:mm:ss'. The time
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separators in this example are colons. This separator is determined by the
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value specified in the Date and time (QTIMSEP) system value. The dates are
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in the format defined in the Date and time (QDATFMT) system value and the
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separators are in the Date and time (QDATSEP) system value. The time and date
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the job entered the system precede the job start time and date in the structure.
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The time and date the job entered the system are when the system becomes aware
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of a job to be initiated (a job structure is set aside for the job). For an
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interactive job, the job entry time is the time the password is recognized
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by the system. For a batch job, it is the time the Batch Job (<span class="cmdname">BCHJOB</span>)
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or Submit Job (<span class="cmdname">SBMJOB</span>) command is processed. For a monitor
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job, reader or writer, it is the time the corresponding start command is processed,
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and for autostart jobs it is during the start of the subsystem.</p>
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<p><strong>Total Response Time and Number of Transactions:</strong> Following the times
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and dates are the total response time and the number of transactions. The
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total response time is in seconds and contains the accumulated value of all
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the intervals the job was processing between pressing the Enter key at the
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workstation and when the next display is shown. This information is similar
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to that shown on the Work with Active Job (<span class="cmdname">WRKACTJOB</span>) display.
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This field is only meaningful for interactive jobs.</p>
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<p>It is also possible in the case of a system failure or abnormal job end
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that the last transaction will not be included in the total. The job end code
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in this case would be a 40 or greater. The transaction count is also only
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meaningful for interactive jobs other than the console job and is the number
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of response time intervals counted by the system during the job.</p>
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<div class="p"><strong>Number of Synchronous Auxiliary I/O Operations: </strong>The number of synchronous
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auxiliary I/O operations follows the number of transactions. For a job with
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multiple threads, this value includes only synchronous auxiliary I/O operations
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from the initial thread. This is the same as the AUXIO field that appears
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on the <span class="cmdname">WRKACTJOB</span> display except for the following difference:<ul><li>The <span class="cmdname">WRKACTJOB</span> display shows the value for the initial
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thread of the current routing step.</li>
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<li>The QHST message contains the cumulative total for the initial thread
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of each routing step in the job.</li>
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</ul>
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</div>
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<p>If the job ends with an end code of 70, this value may not contain the
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count for the final routing step. Additionally, if a job exists across an
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IPL (using a Transfer Batch Job (<span class="cmdname">TFRBCHJOB</span>)
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command) it is ended before becoming active following an IPL, the value is
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0.</p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaksqhistlog.htm" title="The history (QHST) log consists of a message queue and a physical file known as a log-version. Messages sent to the log message queue are written by the system to the current log-version physical file.">QHST History Log</a></div>
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</div>
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</div>
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</body>
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</html> |