Does slow startup time affect system performance?

Discussion in 'macOS' started by Apple!Fre@k, Nov 20, 2009.

  1. Apple!Fre@k macrumors 6502a

    Jun 25, 2006
    Just upgraded to a 27" quad-core iMac yesterday and I noticed the startup time is much slower than it should be once I migrated all of my files from my old 24" iMac over. I usually keep my system up for months at a time, so startup time isn't an issue, but the question is: Does a slow startup time indicate that once I'm up and running, the system could be much quicker, too, or is that slow issue solely restricted to just the startup time?

    I ask because I'm in debate over whether to spend the better part of a day it would take to do a fresh install and copy my files over from an external HDD, as opposed to the "cloning" I did by connecting a Firewire cable between my old and new iMac to let it do its thing.

    Anyone know if my seeing slow startup times means that once I'm logged in, my system could be much faster, or is that slowness solely restricted to starting up?
  2. Weaselboy Moderator


    Staff Member

    Jan 23, 2005

    Try going to this screen in System Prefs and make sure you have the Macintosh HD selected as your boot drive. Then restart.

    Some users who migrated (including me) found Migrations Assistant did not carry this selection over.

    If you do not have a selection made in this screen, the system checks both the network and local drives for a bootable volume, and this takes time.

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