Am 11.06.2014 13:01, schrieb thegeezer: > yeah this is very very odd. > firstly there should not be such discrepancy between hdparm -t and dd if= > secondly you would imagine that the first dd would be cached and so > would be faster the second time round > please check for the turbo boost disable, i'll have a closer look at the > cgroups
no turbo boost found. only a powermanagement menu ... I disabled it again. It was disabled per default, other options are "efficient" and "custom" ... so I understand it as "performant" when it is disabled. "custom" brings several options then, I had tried the performant options already without success. Right now I get around 18-20 MB/s for the /dev/null test.
