phperf/percentiller

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流式化集群化统计数据收集器。

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详细信息

github.com/phperf/percentiller

源代码

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v1.0 2015-09-16 09:40 UTC

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Unknown License b769f38f48e1b89821ebce2bbcc97843d1a42207

This package is auto-updated.

Last update: 2024-09-18 00:48:17 UTC

README

Build Status Scrutinizer Code Quality

Percentiller 是一个用于捕获和分析数据分布的 PHP 类。轻量级，对 CPU 和内存消耗低。通过数据分桶近似百分位数。

安装

composer install phperf/percentiller

用法

$stats = new \Phperf\Percentiller();

// approximation level, more buckets - higher distribution definition for more CPU and memory
$stats->maxBuckets = 10;

// capture values and meta for 5 items with lowest values
$stats->captureBottomItems = 5;

// capture values and meta for 3 items with highest values
$stats->captureTopItems = 3;

.......

// somewhere in data streamer/iterator, replace $event with your data element
$stats->add($event->getResponseTime(), $event->getQueryInfo());

.......

// statistics retrieval

// 95% events had response time not greater than:
$stats->bottomPercentile(0.95);

// 10% events took longer or equal to:
$stats->topPercentile(0.1);

// get information on slowest events
$stats->getTopMetas();

// get information on slowest events
$stats->getBottomMetas();

// iterate through distribution
foreach ($stats->buckets as $bucket) {
    print_r($bucket);
    /*
    Array
    (
        [0] => 41.558                       // minival value
        [1] => 50.95                        // maximal value
        [2] => 137                          // count
        [3] => Array                        // sample meta
            (
                [somedata] => somevalue
            )

    )
    */
}