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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>Chapter 22. Queue Statistics Tapset</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1"><link rel="start" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="up" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="prev" href="re409.html" title="function::warn"><link rel="next" href="re410.html" title="function::qs_done"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 22. Queue Statistics Tapset</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re409.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="re410.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="queue_stats.stp"></a>Chapter 22. Queue Statistics Tapset</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="refentrytitle"><a href="re410.html"><span>function::qs_done</span></a></span><span class="refpurpose"> -
Function to record finishing request
</span></dt><dt><span class="refentrytitle"><a href="re411.html"><span>function::qs_run</span></a></span><span class="refpurpose"> -
Function to record being moved from wait queue to being serviced
</span></dt><dt><span class="refentrytitle"><a href="re412.html"><span>function::qs_wait</span></a></span><span class="refpurpose"> -
Function to record enqueue requests
</span></dt><dt><span class="refentrytitle"><a href="re413.html"><span>function::qsq_blocked</span></a></span><span class="refpurpose"> -
Returns the time reqest was on the wait queue
</span></dt><dt><span class="refentrytitle"><a href="re414.html"><span>function::qsq_print</span></a></span><span class="refpurpose"> -
Prints a line of statistics for the given queue
</span></dt><dt><span class="refentrytitle"><a href="re415.html"><span>function::qsq_service_time</span></a></span><span class="refpurpose"> -
Amount of time per request service
</span></dt><dt><span class="refentrytitle"><a href="re416.html"><span>function::qsq_start</span></a></span><span class="refpurpose"> -
Function to reset the stats for a queue
</span></dt><dt><span class="refentrytitle"><a href="re417.html"><span>function::qsq_throughput</span></a></span><span class="refpurpose"> -
Number of requests served per unit time
</span></dt><dt><span class="refentrytitle"><a href="re418.html"><span>function::qsq_utilization</span></a></span><span class="refpurpose"> -
Fraction of time that any request was being serviced
</span></dt><dt><span class="refentrytitle"><a href="re419.html"><span>function::qsq_wait_queue_length</span></a></span><span class="refpurpose"> -
length of wait queue
</span></dt><dt><span class="refentrytitle"><a href="re420.html"><span>function::qsq_wait_time</span></a></span><span class="refpurpose"> -
Amount of time in queue + service per request
</span></dt></dl></div><p>
This family of functions is used to track performance of queuing systems.
</p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re409.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="re410.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>function::warn</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>function::qs_done</span></td></tr></table></div></body></html>