function xhprof_generate_image_by_dot($dot_script, $type) { $descriptorspec = array( // stdin is a pipe that the child will read from 0 => array("pipe", "r"), // stdout is a pipe that the child will write to 1 => array("pipe", "w"), // stderr is a pipe that the child will write to //2 => array("pipe", "w"), 2 => array("file","/home/work/tmp/error-output.txt", "w") ); //$cmd = " dot -T".$type; $cmd = " /home/work/graphviz/bin/dot -T".$type; //$process = proc_open($cmd, $descriptorspec, $pipes, "/tmp", array()); $process = proc_open($cmd, $descriptorspec, $pipes, "/home/work/tmp", array()); if (is_resource($process)) { fwrite($pipes[0], $dot_script); fclose($pipes[0]); $output = stream_get_contents($pipes[1]); /* $err = stream_get_contents($pipes[2]); if (!empty($err)) { print "failed to execute cmd: \"$cmd\". stderr: `$err'\n"; exit; } */ ....................... .......................
xhprof hang
服务器装上xhprof后 能得到数据 总是无法显示出图 也装了graphviz 后来将数据打出来保存为 test.dot(digraph call_graph {xxx} 的那一坨) ,然后cat test.dot | dot -Tpng > test.png ,发现生成了图片,但是报fontconfig的错误。 改xhprof_lib/utils/callgraph_utils.php 中的管道配置,将错误刷到文件去,然后sexy的图图就出来了。
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转载自ggsonic.iteye.com/blog/1329743
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