Results 1 to 9 of 9

Thread: Second Core

  1. #1
    Second Core

    Member Since
    Jul 24, 2007
    Posts
    12
    Second Core
    Hi,

    If you check my previous posts I asked about the dual core processor.

    Well, since then I have done many sessions of hard work on all sorts of programs and sometimes the mac justs grinds to a standstill.
    During these I checked to see if it was using both cores and I have never seen it running both.
    Is it possible to have deactivated it somehow?
    Thanks

  2. #2
    Second Core
    Derek McNelly's Avatar
    Member Since
    Feb 04, 2008
    Location
    Center Line, Michigan
    Posts
    1,587
    Specs:
    MacBook Pro 15" - 2.3 GHz Quad i7- 8GB RAM - 750GB Hybrid HD - OS X 10.8
    Okay, nevermind. I just read up on it and the gist of what the dual core does is it splits up the processes evenly between the two cores.

    The overall performance is somewhere around 1.6 times the listed clock speed, so a 2GHz Dual Core runs like a 3.2 GHz single core.

    One of the reasons for the multiple cores is because it's getting harder to fit all the transistors onto a chip, and as such, it's easier to just make multiple cores that work together on a single die.

    The best way to keep your Mac running fast is to add more RAM if you can, and if you can't, look and see what processes are running in the background and try and kill some of them.
    MacBook Pro 2.3 GHz Quad i7 - 8GB RAM - 750GB HHD - OS X 10.8
    MacBook 2.0 GHz Core 2 Duo - 4 GB RAM - 320 GB HDD - OS X 10.6

    MoTM February 2009

  3. #3
    Second Core
    dtravis7's Avatar
    Member Since
    Jan 04, 2005
    Location
    Modesto, Ca.
    Posts
    28,480
    Specs:
    iMac late 2007 10.11.b4, iMac 2008 10.10.5, Macbook2007 10.7.5, Mac Mini 10.7.5, iPhone 3GS Note 8!!
    What are you using to view the activity of CPU cores?

    Activity Monitor in Utilities and the CPU tab will show you both cores and how much they are being used. On my Core Duo Mini both are always in use when I am doing work.

  4. #4
    Second Core
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,209
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    Don't believe I've ever seen only a single CPU in use in Activity Monitor.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  5. #5
    Second Core
    Derek McNelly's Avatar
    Member Since
    Feb 04, 2008
    Location
    Center Line, Michigan
    Posts
    1,587
    Specs:
    MacBook Pro 15" - 2.3 GHz Quad i7- 8GB RAM - 750GB Hybrid HD - OS X 10.8


    So, the two graphs highlighted in red each represent a core?
    MacBook Pro 2.3 GHz Quad i7 - 8GB RAM - 750GB HHD - OS X 10.8
    MacBook 2.0 GHz Core 2 Duo - 4 GB RAM - 320 GB HDD - OS X 10.6

    MoTM February 2009

  6. #6
    Second Core
    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,209
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '11 1.8 i7 4GB 10.10; 21" iMac '13 2.9 i5 8GB 10.10; 5s & 5c
    Yes, and you can get the same on the dock icon which represents CPU history or have the dock icon set to CPU usage to show the current use only.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  7. #7
    Second Core
    theonegod's Avatar
    Member Since
    Nov 02, 2006
    Posts
    476
    Specs:
    24" 2.8ghz IMAC, MB Pro
    You can deactivate a single core in power management. Otherwise no.

  8. #8
    Second Core
    bryphotoguy's Avatar
    Member Since
    Feb 02, 2007
    Location
    Chicago, IL
    Posts
    3,978
    Specs:
    Quad 2.8GHz Mac Pro, Edge iPhone
    When I was at the Apple store last Saturday, they had a little video about the C2D processor. The cores run independently. As for deactivating a core, I've never heard of such a thing, so I can't comment.

    January 2008 Member of the Month

  9. #9
    Second Core

    Member Since
    Jul 24, 2007
    Posts
    12
    Thanks guys, just checked activity monitor and there are 2 graphs working so it must be happening!

    Thinking of ordering 4GB ram from macsales, that should speed things up!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 4
    Last Post: 12-15-2011, 05:14 PM
  2. Dual Core or Quad Core for Music software, Pro Tools, Logic etc
    By sam1234 in forum Music, Audio, and Podcasting
    Replies: 3
    Last Post: 03-30-2011, 07:26 PM
  3. 2 Dual core intel xeon vs quad core. Whats the difference??
    By johnnycruze in forum Apple Desktops
    Replies: 3
    Last Post: 03-23-2010, 04:41 PM
  4. Replies: 7
    Last Post: 10-03-2009, 02:22 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •