I recently installed Disqus plugin for WordPress; however, I have been receiving this message “unable to connect to the disqus api servers.” By looking into the source code, it looks like curl is the problem! more specifically the _dsq_curl_urlopen() function, but I did not investigate this error further. As fortunately, we can easily switch to the alternative function _dsq_fsockopen_urlopen().
This should help reduce disk IO by telling the system not to update inode access times. more here
vi /etc/fstab #add noatime to the options of the / file system ex: /dev/mapper/vg_centos6-lv_root / ext4 defaults,noatime 1 1
– remount file system
mount -o remount / #check cat /proc/mounts | grep noatime