XHProf是一个分层PHP性能分析工具,它报告函数级别的请求次数和各种指标,包括阻塞时间,CPU时间和内存使用情况,现在我们来聊聊XHProf在开发环境中如何测试php性能.
以百分之一的概率产生测试数据,尽量不影响正式环境效率,代码如下:
class XHProf {
// private $XHProfPath = ‘xhprof/’;
private $XHProfPath = ‘/usr/local/apache/htdocs/xhprof/’;
private $applicationName = ‘sias_application’;
private $sampleSize = 100;
private static $enabled = false;
public function XHProf_Start() {
if (mt_rand(1, $this->sampleSize) == 1) {
include_once $this->XHProfPath . ‘xhprof_lib/utils/xhprof_lib.php’;
include_once $this->XHProfPath . ‘xhprof_lib/utils/xhprof_runs.php’;
xhprof_enable(XHPROF_FLAGS_NO_BUILTINS + XHPROF_FLAGS_CPU + XHPROF_FLAGS_MEMORY);
}
测试效果:
Overall Summary
Total Incl. Wall Time (microsec): 48,162 microsecs
Total Incl. CPU (microsecs): 32,994 microsecs
Total Incl. MemUse (bytes): 2,773,464 bytes
Total Incl. PeakMemUse (bytes): 2,867,664 bytes
Number of Function Calls: 749
从以下测试结果看出,耗时最多的居然是连接数据库,所以我们来尽量优化数据库.
由 dawei
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