46 lines
2.7 KiB
HTML
46 lines
2.7 KiB
HTML
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<meta name="DC.Title" content="Activity levels of storage pools" />
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<meta name="abstract" content="The activity level of a storage pool refers to the number of active threads within that storage pool." />
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<title>Activity levels of storage pools</title>
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<body id="rzahwact-actco"><a name="rzahwact-actco"><!-- --></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">Activity levels of storage pools</h1>
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<div><p>The activity level of a storage pool refers to the number of active
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threads within that storage pool.</p>
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<div class="section"><p>A single job with 500 threads takes up the same
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number of activity level slots as 500 jobs with a single thread. If the activity
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level is too low for the number of threads and jobs that are active, your
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threads are paged out of main storage and marked as ineligible for a short
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time. This can drastically affect the performance of your application. </p>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahwpcoco.htm" title="There are several performance considerations for multithreaded jobs on i5/OS.">Performance considerations in multithreaded applications</a></div>
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