Transfer pauses without monitor

Posts: 2 · bmcneil3851 1 Jun 2014, 01:19

Hi
On OSX 10.9.3 and FFS 6.5 (Build May 1 2014 - Unicode x64) I'm trying to sync 6GB of data. its pumping along at 115MB/s which is fantastic. Problem is if i turn of my monitor the transfer pauses. if i leave disk activity monitor open before turning off monitor, then leave monitor off for 10min, turn it back on i see the transfer resume.
this is on a Mac mini. rather then turning the monitor off I've also tried unplugging the HDMI (and then turning monitor off) but same result.
any ideas? i don't want to leave my monitor on for 6-7hours...

Posts: 2 · bmcneil3851 1 Jun 2014, 09:57

Found a workaround but not a fix.
set the power saving feature to turn the monitor off after 1 minute. wait for it to do that, then turn monitor off properly.

Posts: 7281 · Zenju 1 Jun 2014, 10:42

This seems to be the new OS X Mavericks feature "App Nap". I'll find a way to disable it during synchronization.

Posts: 7281 · Zenju 10 Aug 2014, 23:32

Found a workaround but not a fix.
set the power saving feature to turn the monitor off after 1 minute. wait for it to do that, then turn monitor off properly.bmcneil3851

I made a few tests: the "App Nap" feature is disabled while FFS is syncing, so it must be something else that is slowing the disk when the monitor is turned off.

Is it possible that you are dealing with the following problem?
http://www.flynsarmy.com/2013/12/how-to-stop-osx-10-9-mavericks-from-sleeping-when-display-turns-off/