vim /usr/local/php-fpm/etc/php-fpm.d/www.conf//加入如下內容
request_slowlog_timeout = 1
slowlog = /usr/local/php-fpm/var/log/www-slow.log
測試：
/usr/local/php-fpm/sbin/php-fpm -t
/etc/init.d/php-fpm reload
ls ../../var/log/ //生成日誌
php-fpm.log www-slow.log
配置nginx的虛擬主機test.com.conf，把unix:/tmp/php-fcgi.sock改爲unix:/tmp/www.sock(可以不改sock)
重新加載nginx服務
vim /data/wwwroot/test.com/sleep.php//寫入如下內容
<?phpecho "test slow log";sleep(2);echo "done";?>
curl -x127.0.0.1:80 test.com/sleep.php
cat /usr/local/php-fpm/var/log/www-slow.log
[12-Dec-2017 17:45:14] [pool www] pid 58346
script_filename = /data/wwwroot/lsx.com/sleep.php
[0x00007f066c246fe0] sleep() /data/wwwroot/lsx.com/sleep.php:3