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| <html><head><title>Python: module telemetry.value.histogram_util</title> |
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| <font color="#ffffff" face="helvetica, arial"> <br><big><big><strong><a href="telemetry.html"><font color="#ffffff">telemetry</font></a>.<a href="telemetry.value.html"><font color="#ffffff">value</font></a>.histogram_util</strong></big></big></font></td |
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| ><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="../telemetry/value/histogram_util.py">telemetry/value/histogram_util.py</a></font></td></tr></table> |
| <p><tt>This is a helper module to get and manipulate histogram data.<br> |
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| The histogram data is the same data as is visible from "chrome://histograms".<br> |
| More information can be found at: chromium/src/base/metrics/histogram.h</tt></p> |
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| <font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr> |
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| <tr><td bgcolor="#aa55cc"><tt> </tt></td><td> </td> |
| <td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="collections.html">collections</a><br> |
| </td><td width="25%" valign=top><a href="telemetry.core.exceptions.html">telemetry.core.exceptions</a><br> |
| </td><td width="25%" valign=top><a href="json.html">json</a><br> |
| </td><td width="25%" valign=top><a href="logging.html">logging</a><br> |
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| <font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr> |
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| <tr><td bgcolor="#eeaa77"><tt> </tt></td><td> </td> |
| <td width="100%"><dl><dt><a name="-AddHistograms"><strong>AddHistograms</strong></a>(histogram_jsons)</dt><dd><tt>Adds histograms together. Used for aggregating data.<br> |
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| The parameter is a list of json serializations and the returned result is a<br> |
| json serialization too.<br> |
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| Note that the histograms to be added together are typically from different<br> |
| processes.</tt></dd></dl> |
| <dl><dt><a name="-CustomizeBrowserOptions"><strong>CustomizeBrowserOptions</strong></a>(options)</dt><dd><tt>Allows histogram collection.</tt></dd></dl> |
| <dl><dt><a name="-GetHistogram"><strong>GetHistogram</strong></a>(histogram_type, histogram_name, tab)</dt><dd><tt>Get a json serialization of a histogram.</tt></dd></dl> |
| <dl><dt><a name="-GetHistogramBucketsFromJson"><strong>GetHistogramBucketsFromJson</strong></a>(histogram_json)</dt></dl> |
| <dl><dt><a name="-GetHistogramBucketsFromRawValue"><strong>GetHistogramBucketsFromRawValue</strong></a>(raw_value)</dt></dl> |
| <dl><dt><a name="-GetHistogramCount"><strong>GetHistogramCount</strong></a>(histogram_type, histogram_name, tab)</dt><dd><tt>Get the count of events for the given histograms.</tt></dd></dl> |
| <dl><dt><a name="-GetHistogramSum"><strong>GetHistogramSum</strong></a>(histogram_type, histogram_name, tab)</dt><dd><tt>Get the sum of events for the given histograms.</tt></dd></dl> |
| <dl><dt><a name="-SubtractHistogram"><strong>SubtractHistogram</strong></a>(histogram_json, start_histogram_json)</dt><dd><tt>Subtracts a previous histogram from a histogram.<br> |
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| Both parameters and the returned result are json serializations.</tt></dd></dl> |
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| <font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr> |
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| <tr><td bgcolor="#55aa55"><tt> </tt></td><td> </td> |
| <td width="100%"><strong>BROWSER_HISTOGRAM</strong> = 'browser_histogram'<br> |
| <strong>RENDERER_HISTOGRAM</strong> = 'renderer_histogram'</td></tr></table> |
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