Install xhprof

cd xhprof/extension/
phpize
./configure 
makemake install

Then add

extension=xhprof.so

execution

php -m | grep xhprof

to /etc/php.ini according to the situation and you can see Output, indicating that the php extension is installed successfully, and then restart Apache or php-fpm

Run

You can directly run the example in the example directory in the file cloned from github

The output is as follows

Array
(    [main()] => Array        (            [ct] => 1            [wt] => 9        ))
---------------Assuming you have set up the http based UI for 
XHProf at some address, you can view run at 
http://<xhprof-ui-address>/index.php?run=592567308784c&source=xhprof_foo
---------------

Then copy the ?run=592567308784c&source=xhprof_foo

Visit

xhprof_html/index.php?run=592567308784c&source=xhprof_foo

You can see the output

Click View Full Callgraph in the middle to see the performance analysis picture

Error reporting

failed to execute cmd：" dot -Tpng". stderr：sh： dot：command not found。

//解决方案yum install graphviz

Adapt to changes

For example, if you want to test your own project, such as a framework Performance analysis.

Copy the two files under xhprof_lib/utils/

xhprof_lib.php and xhprof_runs.php to the same directory as the entry file, and then add

// start profiling
xhprof_enable();

// stop profiler
$xhprof_data = xhprof_disable();

// display raw xhprof data for the profiler run
print_r($xhprof_data);


include_once "xhprof_lib.php";
include_once "xhprof_runs.php";

// save raw data for this profiler run using default
// implementation of iXHProfRuns.
$xhprof_runs = new XHProfRuns_Default();

// save the run under a namespace "xhprof_foo"
$run_id = $xhprof_runs->save_run($xhprof_data, "xhprof_foo");

echo "---------------\n".
     "Assuming you have set up the http based UI for \n".
     "XHProf at some address, you can view run at \n".
     "http://<xhprof-ui-address>/index.php?run=$run_id&source=xhprof_foo\n".
     "---------------\n";

http://***/xhprof_html/index.php?run=*****&source=xhprof_foo

    Function Name：方法名称。

    Calls：方法被调用的次数。

    Calls%：方法调用次数在同级方法总数调用次数中所占的百分比。

    Incl.Wall Time(microsec)：方法执行花费的时间，包括子方法的执行时间。（单位：微秒）

    IWall%：方法执行花费的时间百分比。

    Excl. Wall Time(microsec)：方法本身执行花费的时间，不包括子方法的执行时间。（单位：微秒）

    EWall%：方法本身执行花费的时间百分比。

    Incl. CPU(microsecs)：方法执行花费的CPU时间，包括子方法的执行时间。（单位：微秒）

    ICpu%：方法执行花费的CPU时间百分比。

    Excl. CPU(microsec)：方法本身执行花费的CPU时间，不包括子方法的执行时间。（单位：微秒）

    ECPU%：方法本身执行花费的CPU时间百分比。

    Incl.MemUse(bytes)：方法执行占用的内存，包括子方法执行占用的内存。（单位：字节）

    IMemUse%：方法执行占用的内存百分比。

    Excl.MemUse(bytes)：方法本身执行占用的内存，不包括子方法执行占用的内存。（单位：字节）

    EMemUse%：方法本身执行占用的内存百分比。

    Incl.PeakMemUse(bytes)：Incl.MemUse峰值。（单位：字节）

    IPeakMemUse%：Incl.MemUse峰值百分比。

    Excl.PeakMemUse(bytes)：Excl.MemUse峰值。单位：（字节）

    EPeakMemUse%：Excl.MemUse峰值百分比。

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