I've seen people posting about experiencing big delays in flushing to disk, even when they have an SSD. I thought to take a moment and post the solution to these issues that I have found to work 100% for me. (Specifically, this is for when you have an SSD as the drive you are writing to as the target for uTorrent) As the write speed of your SSD is greater than the speed of your download, you don't use cache at all. Go into Advanced Settings and change the value of "diskio.all_writes_sync" to true, as shown below. Next, change "diskio.coalesce_writes" to false. Fragmentation is not an issue on the SSD. Lastly, go to the Disk Cache dialog and disable (uncheck) disk write caching, as shown below, then select OK. Exit and restart uTorrent in order to ensure the new settings are in effect, and you should be all set. These settings will cause uTorrent to immediately write data to the SSD, with no flushing delays.
