立即学习“PHP免费学习笔记（深入）”；
<spanMicrosoft YaHei';">1. wget http:<span>//</span><span>pecl.php.net/get/xhprof-0.9.3.tgz </span>
2. tar zxf xhprof-0.9.3.<span>tgz
</span>3. cd xhprof-0.9.3/<span>extension
</span>4. /usr/bin/<span>phpize
(php版本安装后生成的phpize文件，可根据phpinfo查看，所以php版本不同，生成的phpize也不同，此步骤主要生成configure文件)
</span>5. ./configure –with-php-c/bin/php-<span>config
(php</span>-<span>config的路径，也是php安装后生成的文件)
</span>6.<span> make
</span>7.<span> sudo make install
(会自动将生成的扩展文件拷贝到扩展目录中</span>/usr/lib64/php/<span>modules)
当然具体的php文件的目录，每个人不尽相同，可根据phpinfo查询</span></span>
<spanMicrosoft YaHei';"><span>1</span><span>根据phpinfo找到 extension_dir的目录 </span><span>2</span> （/etc/php.d/xhprof.<span>ini） </span><span>3</span><span>4</span><span>添加一下内容： </span><span>5</span><span>6</span> extension=xhprof.<span>so </span><span>7</span> xhprof.output_dir=/tmp/xhprof <span>//</span><span>xhprof的分析日志</span></span>
<spanMicrosoft YaHei';"><span>1</span> sudo /etc/init.d/<span>http restart </span><span>2</span><span>3</span> 查看phpinfo是否安装成功</span>
<spanMicrosoft YaHei';"><span> 1</span><span>开头： </span><span> 2</span> xhprof_enable(); <span>//</span><span>开启监测 </span><span> 3</span><span>//xhprof_enable(XHPROF_FLAGS_NO_BUILTINS); 不记录内置的函数 </span><span> 4</span><span>//xhprof_enable(XHPROF_FLAGS_CPU + XHPROF_FLAGS_MEMORY); 同时分析CPU和Mem的开销 </span><span> 5</span><span> 6</span><span>//要测试的代码</span><span> 7</span> ... <span> 8</span> ... <span> 9</span> ... <span>10</span><span>11</span><span>结尾： </span><span>12</span><span>$xhprof_data</span> = xhprof_disable(); <span>//</span><span>停止监测，返回运行数据</span><span>13</span><span>$xhprof_root</span> = '/（xhprof的虚拟主机目录）/'<span>; </span><span>14</span><span>//</span><span>引入当初安装到xhprof虚拟主机目录中的文件</span><span>15</span><span>include_once</span><span>$xhprof_root</span>."xhprof_lib/utils/xhprof_lib.php"<span>; </span><span>16</span><span>include_once</span><span>$xhprof_root</span>."xhprof_lib/utils/xhprof_runs.php"<span>; </span><span>17</span><span>$xhprof_runs</span> = <span>new</span><span> XHProfRuns_Default(); </span><span>18</span><span>$run_id</span> = <span>$xhprof_runs</span>->save_run(<span>$xhprof_data</span>, "xhprof"<span>); </span><span>19</span><span>echo</span> '<a href="http://（xhprof的虚拟主机域名）/xhprof_html/index.php?run='.<span>$run_id</span>.'&source=xhprof" target="_blank">xhprof统计</a>'<span>; </span></span>
<spanMicrosoft YaHei';"><span>1</span> yum install -<span>y graphviz </span><span>2</span> yum install graphviz-gd</span>
<spanMicrosoft YaHei';"><span> 1</span><span>Function</span><span> Name 函数名 </span><span> 2</span><span> Calls 调用次数 </span><span> 3</span> Calls%<span> 调用百分比 </span><span> 4</span> Incl. Wall <span>Time</span><span> (microsec) 调用的包括子函数所有花费时间 以微秒算(一百万分之一秒) </span><span> 5</span> IWall%<span> 调用的包括子函数所有花费时间的百分比 </span><span> 6</span> Excl. Wall <span>Time</span> (microsec) 函数执行本身花费的时间，不包括子树执行时间,<span>以微秒算(一百万分之一秒) </span><span> 7</span> EWall%<span> 函数执行本身花费的时间的百分比，不包括子树执行时间 </span><span> 8</span> Incl. CPU(microsecs) 调用的包括子函数所有花费的cpu时间。减Incl.<span> Wall Time即为等待cpu的时间 </span><span> 9</span> 减Excl.<span> Wall Time即为等待cpu的时间 </span><span>10</span> ICpu% Incl.<span> CPU(microsecs)的百分比 </span><span>11</span> Excl. CPU(microsec) 函数执行本身花费的cpu时间，不包括子树执行时间,<span>以微秒算(一百万分之一秒)。 </span><span>12</span> ECPU% Excl.<span> CPU(microsec)的百分比 </span><span>13</span> Incl.<span>MemUse(bytes) 包括子函数执行使用的内存。 </span><span>14</span> IMemUse% Incl.<span>MemUse(bytes)的百分比 </span><span>15</span> Excl.MemUse(bytes) 函数执行本身内存,<span>以字节算 </span><span>16</span> EMemUse% Excl.<span>MemUse(bytes)的百分比 </span><span>17</span> Incl.PeakMemUse(bytes) Incl.<span>MemUse的峰值 </span><span>18</span> IPeakMemUse% Incl.<span>PeakMemUse(bytes) 的峰值百分比 </span><span>19</span> Excl.PeakMemUse(bytes) Excl.<span>MemUse的峰值 </span><span>20</span> EPeakMemUse% EMemUse% 峰值百分比</span>
<spanMicrosoft YaHei';"><span>1</span> http:<span>//</span><span>blog.csdn.net/maitiandaozi/article/details/8896293</span><span>2</span> http:<span>//</span><span>www.cnblogs.com/wangtao_20/archive/2011/03/16/1986508.html</span><span>3</span> http:<span>//</span><span>www.cnblogs.com/wangtao_20/archive/2013/09/13/3320497.html</span><span>4</span><span>5</span> http:<span>//</span><span>avnpc.com/pages/profiler-php-performance-online-by-xhprof</span><span>6</span> http:<span>//</span><span>www.ituring.com.cn/article/133062?utm_source=tuicool</span></span>
以上就介绍了php性能分析工具 - xhprof的安装使用，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。
