Another quantifier of the issue can be seen using hdparm. On a fresh start, hdparm reports:
/dev/sda: Timing cached reads: 1740 MB in 2.00 seconds = 870.57 MB/sec Timing buffered disk reads: 64 MB in 3.04 seconds = 21.03 MB/sec After triggering the issue: /dev/sda1: Timing cached reads: 538 MB in 2.00 seconds = 269.10 MB/sec Timing buffered disk reads: 64 MB in 3.08 seconds = 20.79 MB/sec -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1189645 Title: TLP causing lag under desktop environments To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1189645/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
