APFS issue? Huge disk speed drop in 10.3 vs 10.2.1 (Antutu - iPhone SE)

Discussion in 'iOS 10' started by dikrek, Mar 29, 2017.

  1. dikrek macrumors newbie

    dikrek

    Joined:
    May 4, 2011
    #1
    Hello all,

    See attached a picture of the I/O performance in 10.3 vs 10.2.1

    So in 10.2.1 the SE I/O speed was getting 13348, and in 10.3 it's 5875??

    That's a huge drop in I/O performance.

    Can anyone else run Antutu and confirm?

    Thx

    D
     

    Attached Files:

  2. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #2
    System might still be be indexing (or whatever the iOS equivalent is). Try a hard reset and re-run?

    Also was that previous score benched on your phone or was it a different device?
     
  3. NT1440 macrumors G4

    NT1440

    Joined:
    May 18, 2008
    Location:
    Hartford, CT
    #3
    Perhaps that benchmark app needs to be updated due to conflicts with APFS and the way it reads to the app itself?
     
  4. dikrek thread starter macrumors newbie

    dikrek

    Joined:
    May 4, 2011
    #4
    I tested it at various times, before and after reset, before and after reindexing.

    The previous score was the reference benchmark in the app but I had tested it and I got a similar number (just didn't save the result since it was almost identical).
    --- Post Merged, Mar 29, 2017 ---
    Possibly - then there's the slower 3D scores to think about too (look at the bottom of the pic)
     
  5. keysofanxiety macrumors 604

    keysofanxiety

    Joined:
    Nov 23, 2011
    #5
    Is the reference benchmark of an iPhone the same storage size? Flash chips work in parallel so the bigger the storage, the faster the speeds.

    Granted, you ran the app before and it gave similar results. But I'm just thinking maybe the app needs updating, or possibly the new APFS is skewing the scores?

    With regards to real-world usage, have you noticed any slowdowns or does the system run a little quicker?

    Would appreciate any insight you can provide -- you've got my curiosity. :)
     
  6. NT1440 macrumors G4

    NT1440

    Joined:
    May 18, 2008
    Location:
    Hartford, CT
    #6
    To be honest I think it's a bit foolish to expect accurate results from a benchmarking app after an iOS .X update, let alone an entirely new filesystem before the app itself receives any updates.

    As the poster above asked, have you seen any performance degradation or are we looking at numbers for numbers sake? If it's the latter, wait for the app to be updated before taking the results seriously.
     
  7. dikrek thread starter macrumors newbie

    dikrek

    Joined:
    May 4, 2011
    #7
    Real world usage seems fluid - no issues I can see, but then again the SE has an excess of speed so maybe I'm just not hitting the bottleneck.

    So it could be that

    1. There IS a degradation, and I simply don't feel the degradation since I don't do something that stresses the IO apart from the benchmark (I have the 64GB SE, even at the reduced speed it's faster in IO than many other models) OR
    2. The benchmark needs to be updated as many of you said
    Now, I do storage for a living, and if the Antutu benchmark follows the API rules, it should NOT have to be rewritten. If anything, the results show that doing the exact same system calls, in a 64-bit app, that's current as of 10.2.1, the new OS is half the speed for I/O.

    D
     
  8. NT1440 macrumors G4

    NT1440

    Joined:
    May 18, 2008
    Location:
    Hartford, CT
    #8
    I sincerely doubt that APFS has caused I/O speed to actually drop, in fact from the WWDC demos (admittedly on a mac, but I can't imagine such a drastic deviation to iOS) performs many function at a breathtakingly faster speed.

    Perhaps there is a bug in 10.3 itself (not related to APFS) that is causing the issue? I guess we'll have to see but this one is kind of hard to figure out without being able to peek under the hood you know?
     
  9. dikrek thread starter macrumors newbie

    dikrek

    Joined:
    May 4, 2011
    #9
    It could be due to many things - even advanced filesystems often are slower in specific things than old-fashioned ones, but the overall benefit is greater.

    For example, Antutu might be testing a specific IO pattern that's not friendly to APFS. Totally possible and I've seen this happen many times in my career in storage.
     
  10. Kalloud, Mar 29, 2017
    Last edited: Mar 29, 2017

    Kalloud macrumors regular

    Joined:
    Oct 23, 2016
    #10
    There definitely is a significant ux I/O performance and 3D performance drop on my iPhone 6s after the iOS 10.3 update .
    What about you guys using other iPhone models because the 6s and the SE have basically the same soc?
     

    Attached Files:

  11. Ladybug macrumors 65816

    Ladybug

    Joined:
    Apr 13, 2006
    #11
    I haven't updated my 6s to 10.3 yet. I think I will hold off for awhile longer and see how this shakes out. Please keep us updated. Thanks
     
  12. miragebg macrumors 6502a

    Joined:
    Mar 23, 2009
    #12
    I still keep my 6S on 10.2 and will wait to see how this goes...
    Do you think that 10.2 is still faster than 10.3, despite synthetic benchmarks..?
     
  13. dikrek thread starter macrumors newbie

    dikrek

    Joined:
    May 4, 2011
    #13
    10.3 feels fast and in synthetic benchmarks the CPU stuff scores faster. Even Geekbench improved a bit on my SE.

    I was just wondering about the IO speeds reported by AnTuTu mostly.
     
  14. cswifx Suspended

    cswifx

    Joined:
    Dec 15, 2016
    #14
    Regardless of I/O benchmarks, my SE feels a lot faster on 10.3. It might be the Antutu app.
     
  15. dikrek thread starter macrumors newbie

    dikrek

    Joined:
    May 4, 2011
    #15
    I ran passmark and the disk score was 43123, the reference was 52552, so that's a relatively small difference.

    Reference:

    http://www.iphonebenchmark.net/diskmark_chart.html

    They benchmark itself is from 2012 so not exactly new code. The disk part of it gets done in a second.
    --- Post Merged, Mar 30, 2017 ---
    Also ran 3Dmark slingshot extreme and got 2011, the SE is supposed to get 1952, so it was a bit faster than normal.
     
  16. Everbarve macrumors newbie

    Joined:
    Apr 3, 2017
    #16
    My experience with Antutu Benchmark under iOS 10.3 is that the score deviation from 10.2.1 is minimal with old hardware (iPhone 6, iPad Air 2) and around 6% lower with the new hardware (iPhone 6s, iPad Pro), e.g. my iPad Pro 9.7 dropped from approx. 174000 under 10.2.1 to 163000 under iOS 10.3; iPhone 6s dropped from 143000 to 134000
     
  17. iScholtz macrumors newbie

    iScholtz

    Joined:
    Feb 11, 2016
    #17
    same here, also on a SE. And with beta 5 (at least, may have been since a beta before 5) the 3D Garden test results are also down.
    --- Post Merged, Apr 30, 2017 ---
    [​IMG]
     

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