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<h1 class="nopad">Table of Contents</h1>
<div style="margin-left: 1em;" class="toc-section">
<a href="#toc0">Overview</a>
<div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.profile/*enable-profiling*">*enable-profiling*</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.profile/print-summary">print-summary</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.profile/prof">prof</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.profile/profile">profile</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.profile/summarize">summarize</a>
</div><div style="margin-left: 1em;" class="toc-entry">
<a href="#clojure.contrib.profile/with-profile-data">with-profile-data</a>
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<br />
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<div id="content-tag"><h1 id="overview">API for <span id="namespace-name">profile</span>
- <span id="header-project">clojure-contrib</span> <span id="header-version">next</span> (<span id="header-status">in development</span>)
</h1>
<span id="author-line">by <span id="author-name">Stuart Sierra</span><br /></span>
<br />Usage:
<pre>
(ns your-namespace
(:require <span id="long-name">clojure.contrib.profile</span>))
</pre><pre>
</pre><h2>Overview</h2>
<pre id="namespace-docstr">Simple code profiling & timing measurement.
Wrap any section of code in the prof macro, giving it a name, like this:
(defn my-function [x y]
(let [sum (prof :addition (+ x y))
product (prof :multiplication (* x y))]
[sum product]))
The run your code in the profile macro, like this:
(profile (dotimes [i 10000] (my-function 3 4)))
Which prints a report for each named section of code:
Name mean min max count sum
addition 265 0 37000 10000 2655000
multiplication 274 0 53000 10000 2747000
Times are measured in nanoseconds, to the maximum precision available
under the JVM. See the function documentation for more details.</pre>
<br />
<h2>Public Variables and Functions</h2>
<div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.profile/*enable-profiling*">*enable-profiling*</h2>
<span id="var-type">var</span><br />
<pre id="var-usage"></pre>
<pre id="var-docstr">Set this to false before loading/compiling to omit
profiling code.</pre>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.profile/print-summary">print-summary</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (print-summary profile-summary)
</pre>
<pre id="var-docstr">Prints a table of the results returned by summarize.</pre>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.profile/prof">prof</h2>
<span id="var-type">macro</span><br />
<pre id="var-usage">Usage: (prof name & body)
</pre>
<pre id="var-docstr">If *enable-profiling* is true, wraps body in profiling code.
Returns the result of body. Profile timings will be stored in
*profile-data* using name, which must be a keyword, as the key.
Timings are measured with System/nanoTime.</pre>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.profile/profile">profile</h2>
<span id="var-type">macro</span><br />
<pre id="var-usage">Usage: (profile & body)
</pre>
<pre id="var-docstr">Runs body with profiling enabled, then prints a summary of
results. Returns nil.</pre>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.profile/summarize">summarize</h2>
<span id="var-type">function</span><br />
<pre id="var-usage">Usage: (summarize profile-data)
</pre>
<pre id="var-docstr">Takes the raw data returned by with-profile-data and returns a map
from names to summary statistics. Each value in the map will look
like:
{:mean ..., :min ..., :max ..., :count ..., :sum ...}
:mean, :min, and :max are how long the profiled section took to run,
in nanoseconds. :count is the total number of times the profiled
section was executed. :sum is the total amount of time spent in the
profiled section, in nanoseconds.</pre>
</div><div id="var-entry">
<br />
<hr />
<h2 id="clojure.contrib.profile/with-profile-data">with-profile-data</h2>
<span id="var-type">macro</span><br />
<pre id="var-usage">Usage: (with-profile-data & body)
</pre>
<pre id="var-docstr">Executes body with *profile-data* bound to an atom of a new map.
Returns the raw profile data as a map. Keys in the map are profile
names (keywords), and values are lists of elapsed time, in
nanoseconds.</pre>
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