Yosemite SSD slowdown

Discussion in 'OS X Yosemite (10.10)' started by Chopinke, Oct 21, 2014.

  1. Chopinke, Oct 21, 2014
    Last edited: Oct 21, 2014

    Chopinke macrumors newbie

    Oct 21, 2014

    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?

  2. Pyrone89 macrumors member

    Oct 18, 2014
    Same here with a Samsung 830 Pro on an 2011 iMac

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