Resolved Slow Mid-2013 Air

Discussion in 'MacBook Air' started by LovelyPenguin, Jun 22, 2015.

  1. LovelyPenguin macrumors newbie

    Joined:
    Sep 15, 2013
    #1
    Hi all,

    I own a Mid-2013 Air with i5, 8GB RAM, 128 SSD.

    It's been almost 2 years with it. Recently, it's become somewhat slow. Usually, I have two Firefox browsers - one in private mode - with around 10 tabs open, Spotify client, one or two documents - Words or PDF, several Finder windows, Calender app, Reminders app, and sometimes Windows on VMware. Even though I use VMware, I believe 8GB RAM should be enough.

    I feel like it is more likely to be slow when (1) VMware is open, (2) after sleep. When I reboot, with the same set of programs concurrently open, it's not as slow.

    Any thoughts?
    Thanks!
     
  2. motrek macrumors 68020

    Joined:
    Sep 14, 2012
    #2
    Can you run Activity Monitor and look at the CPU and memory tabs in particular and see if you have any unexpected processes using CPU time or if you're experiencing memory pressure (yellow in the memory pressure graph)?
     
  3. LovelyPenguin thread starter macrumors newbie

    Joined:
    Sep 15, 2013
    #3
    Hi,

    I often check Activity Monitor, and all the top processes that consume CPU and memory are what I'm running. There is no other unexpected apps running. Also, the memory pressure rarely stretches beyond the half-point.

    I have no idea as to where these occasional lags come from...

    Thanks.
     
  4. LovelyPenguin thread starter macrumors newbie

    Joined:
    Sep 15, 2013
    #4
    It seems Firefox is the problem. I refreshed it, and now it's much better. My problem seems to have been solved, at least temporarily. Thanks!
     
  5. JBat macrumors regular

    JBat

    Joined:
    Apr 6, 2007
    Location:
    Washington
    #5
    Firefox is as big a memory hog as Chrome is, maybe bigger. It makes my machine run hot by taxing the CPU.
     
  6. LovelyPenguin thread starter macrumors newbie

    Joined:
    Sep 15, 2013
    #6
    May I ask what browser you're using then?
    When I'm running Firefox, I don't see a high level of memory pressure, at least in Activity Monitor. Wonder if it's in fact sucking all the memory.
     
  7. niji macrumors 6502a

    niji

    Joined:
    Feb 9, 2003
    Location:
    tokyo
    #7
    hi

    my wife's macbook air 2013 is the core i7. we are not noticing any lag using either 10.10.3 or 10.10.4.

    the mid-2013 spec models differ as below:

    Processor Intel Core i5 or Core i7 (4250U, 4650U) ("Haswell")
    Processor Speed 1.3 GHz (Core i5) or 1.7 GHz (Core i7)
    Cache 3 MB (1.3 GHz) 4 MB (1.7 GHz) shared L3

    the rule of thumb that i have used during the last few years when buying laptop macs is:
    if you only need it to last for 2 to 3 years, then buy the slower processor but still max out on memory
    if you want it to last 4 to 5 years, then max out on both processor and memory.
     
  8. dollystereo macrumors 6502a

    dollystereo

    Joined:
    Oct 6, 2004
    Location:
    France
    #8
    The speed difference between the i5 and i7 in the U-series processors is almost negligible.
     
  9. LovelyPenguin thread starter macrumors newbie

    Joined:
    Sep 15, 2013
    #9

    Hi, thanks for your reply. I recently noticed that indeed the occasional lags are due to sudden peaks of CPU usage. I thought the both CPUs wouldn't give a difference in speed, but it in fact does.

    I thought, 8g memory with ssd would just do the job. My mistake.
    Next time I buy a laptop, I will keep in mind that unlike others say, CPU could matter.
     
  10. LovelyPenguin thread starter macrumors newbie

    Joined:
    Sep 15, 2013
    #10
    Hi, thanks for the reply.

    Many argue that two CPUs don't give much of a difference, but I wish I had a i7 now, at least to see if the lags I come across quite often would also happen.
     
  11. motrek macrumors 68020

    Joined:
    Sep 14, 2012
    #11
    I don't know what you mean by "two CPUs."

    Do you think the i7 has two chips, or processors, or CPU cores, whereas the i5 only has one?

    Because that's not right. The i5s and i7s in MacBook Airs are both single-chip, dual-core processors.

    In fact they are really almost literally identical except for some clock speed differences.

    The i7 will be some small percentage faster, around 20%. So if you are noticing lags, then those lags would only be 20% shorter. So the lags will only be 20% less annoying and not 100% less annoying.
     
  12. LovelyPenguin thread starter macrumors newbie

    Joined:
    Sep 15, 2013
    #12

    Hi, sorry for the confusion. I meant there is a difference between the two CPU models - i5 and i7. And it seems the i7 would also give a lag, but it would be shorter.

    Anyway, I'm okay with this machine, and will stick to it. Just wanted to know some other folks are having similar issues. :)
     
  13. dollystereo macrumors 6502a

    dollystereo

    Joined:
    Oct 6, 2004
    Location:
    France
    #13
    Your lag is surely related to software, not hardware.
     
  14. dollystereo macrumors 6502a

    dollystereo

    Joined:
    Oct 6, 2004
    Location:
    France
    #14
    I have a 2011 MBP with 8GB ram with no lag at all. Bad battery, very hot, but no lag.
     
  15. SSD-GUY macrumors 6502a

    Joined:
    Sep 20, 2012
    Location:
    London, UK
    #15
    It's software related, not hardware. I wipe my Mac's every year, and install everything fresh. It takes about a day, but it's worth it for the rest of the year.
     
  16. iKnowMr.Jobs macrumors regular

    iKnowMr.Jobs

    Joined:
    Oct 17, 2010
    #16
    Virtual Machines definitely slow down the computer, since it has to juggle resources for two operating systems at the same time. I have a 2012 Air with 8gb ram to (computationally, about the same as the 2013, just not as power efficient). I think the main problem is Yosemite not being fully baked. I've been running the Public Beta of 10.11 and my Air just flies in a way it hasn't since Mavericks was on it.
     
  17. ckWTB macrumors member

    ckWTB

    Joined:
    Aug 24, 2014
    Location:
    Portland, OR
    #17

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