Hans du Plooy wrote:
Guys,
I think we're missing the point here. Mounted sync or no sync, writing to a USB flash drive in SUSE 10.0 takes forever. Without sync it just *appears* faster but you still wait the same amount of time for it to finish up. According to the Konq. copy progress thingy, writing to my USB flash drive happens at 30-40kb/s. This is a USB2 device on a USB2 controller. This is slower than even USB 1.1 used to be.
In SUSE 9.3 writing to a USB flash drive, again, sync or no sync, was a lot quicker.
The weird thing is, if I put a normal IDE drive in an external USB enclosure, and plug that in, I can write at 26mb/s while it is mounted sync.
So why is it different for flash drives? What broke between 9.3 and 10.0?
I have found there's in immense difference betweeing sync and no sync. Without sync, it's usable. With sync, it's not. Last night, I was getting 5 - 6 MB/s. that's 40 - 48 Mb/s on USB 2. With sync, I was generally getting under 20 KB/s and a lot of "stalled" messages. Use the mount command, to ensure it's really mounted without sync.