Average Size of Writes for daily use in OSX?

Discussion in 'macOS' started by walk1010, Apr 12, 2011.

  1. walk1010 macrumors newbie

    Apr 12, 2011
    Hi, I just got an SSD, so I've been monitoring my writes as reported by the Activity Monitor. So far I had 10GB of writes yesterday. This probably was because I installed office which is huge. Today I had my computer on for 6 hours, just surfing the web and watching youtube videos and I'm currently at 1GB. Also I did all the standard optimizations for SSDS like noatime etc and I have 0 swaps used because I have 8gb or ram, so my numbers should be smaller. What are you guys experiencing?
  2. maflynn Moderator


    Staff Member

    May 3, 2009
    I don't think any of us are monitoring our writes. I think you're being a little to anal worrying about your SSD, its rating is so high regarding write cycles that you really shouldn't worry about it. You'll be upgrading long before you reach the that threshold.
  3. msjones macrumors 6502


    Oct 18, 2007
    Nottinghamshire, UK
    I have uptime of 5 days 17 hours with a write of 10.06GB and a read of 19.23GB at time of writing.

    I agree with maflynn, I wouldnt worry about it :)
  4. Weaselboy Moderator


    Staff Member

    Jan 23, 2005
  5. walk1010 thread starter macrumors newbie

    Apr 12, 2011
    Haha, ya you guys are probably right. It's my first SSD though (costly!) and I want to take care of it until TRIM officially comes out, and then I can rest easy and let OS X take care of the rest. :D
  6. darknite38 macrumors regular

    Nov 18, 2010
    Yep, no reason to worry about your ssd.
    The calculations in that website that the previous poster linked said that you would have to have sustained read/write times of over 51 years to use up your ssd. There is nothing to worry about at all.
  7. iThinkergoiMac macrumors 68030

    Jan 20, 2010
    There's an application you can download to enable TRIM in 10.6. But you seem to be confused as to what TRIM does... whether or not your SSD has TRIM, the number of writes it can sustain is the same.
  8. walk1010, Apr 13, 2011
    Last edited: Apr 13, 2011

    walk1010 thread starter macrumors newbie

    Apr 12, 2011
    Yeah, you're completely right, I'm mixing up two different problems ><. My reasoning was less writes means less stuff to delete later on (which would need TRIMing). Also, I've enabled the TRIM hack, but I've been getting a lot of beachballs as a result. lol I've decided to just not worry about it anymore. I just read a review from Anandtech where he says that he writes about 7GB/day without TRIM and doesn't experience significant degradation. That was with the previous Sandforce controller and I have the new one, so I should theoretically have less to worry about... :confused: As far as concern about pure number of writes, I guess I shouldn't change my computing habits to suit the drive to this extreme! I should just enjoy my drive :p. Here's the article if anyone's interested. Thanks for the responses everyone.

  9. atticus18244fsa macrumors 6502


    Jul 11, 2008
    Waterloo, ON
    I have current uptime of 4 days 6 hours with 35.5GB read and 55GB write. And thats just from typical average use. Hope that helps you.

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