On 08/14/2014 10:52 AM, Elmar Pruesse wrote: > There is a big difference between IO/s and MB/s. Sequential writes can > easily reach 100MB/s with current HDD. For random IO, 3 MB/s is not > unusual. Use "iostat -x 1" to observe your disks. 150 IO/s for desktop > drives is quite normal. Thx for the tip on iostat, didn't know that one
> If, while you are working with darktable, the right-most column of > iostat output says "100%", then darktable is indeed limited by disk > speed. The most simple fix might be to get a SSD for /home. I noticed that after boot %util is 100% for a while due to running processes (such as Crashplan starting up) and I've noticed there were kernel tasks related to btrfs itself consuming most IO bandwidth. I've done some config changes to fstab and defragged the metadata and right now IO seems normal (aka less than 1%). I'm going to keep iostat running in another window & see if I can track down what exactly is hogging my IO ------------------------------------------------------------------------------ _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
