Yosemite SSD slowdown

[Chopinke]

Hi,

It seems Yosemite introduced a quite high SSD slowdown. I have 840 Samsung Pro, read speed is 300MB/s, write is 40MB/S (!). It was just fine in Mavericks... I enabled trim after disabling kext signing, the result is the same with BlackMagic.

Anybody experienced the same issue?

Thanks!

 

[Pyrone89]

Same here with a Samsung 830 Pro on an 2011 iMac