16GB iPhone user with iOS 10.3 Apple File System (APFS)? Does the space free up?

Discussion in 'iOS 10' started by viettanium, Mar 13, 2017.

  1. viettanium macrumors regular

    Joined:
    Sep 3, 2010
    Location:
    Vietnam
    #1
    Any 16GB iPhone user has installed iOS 10.3 with new Apple File System? Please post your results?
     
  2. BLUEDOG314 macrumors regular

    BLUEDOG314

    Joined:
    Dec 12, 2015
    #2
    I have not tried the beta personally, but know people who have and have read reports from others that say space does free up. How much space that frees up seems to vary greatly. I have also read reports (and plan to try soon) that the latest beta for MacOS 10.12.4 can be tricked to boot from a converted APFS volume. There are a few things in either case that I have come to conclude myself however.

    First, APFS does not have a deduplication feature. This means that the resource intensive task of scanning the filesystem for identical files and deleting all but one and changing its metadata to account for the other deleted versions is not present in APFS. As such I am not entirely sure we can expect to see large space gains. As an extension of this, copying a file onto an APFS volume that already exists on that volume will take up additional space. To demonstrate this I formatted an external USB drive with APFS and placed a ~1 GB mkv file on it. I then copied that file to another directory on that external drive. As expected it copied instantly and did not take up any additional space. I then copied that same file onto my Mac's internal HFS+ drive, then from the internal drive again copied the file and pasted it back onto the external APFS volume. The transfer was not instant and took up additional space.

    Second, the amount of space that frees up can vary drastically and I have so far not been able to find out what determines this. I have heard some people say up to almost a GB is freed up on their phone, not including obviously the size of the update that gets deleted after it is run. On the other hand, the individual that was able to boot his 10.12.4 beta Mac from APFS after conversion reported under 300MB was freed in conversion.

    Check out this page: http://enterprisemac.bruienne.com/2017-02-27-apfs-boot-quickpost/
    Note the following from above link:
    44,887,089,152 bytes free (70%)
    Mon Feb 27 16:13:23 2017: Unmounting APFS volumes
    Mon Feb 27 16:13:23 2017: Flushing transactions
    44,887,089,152 bytes free (70%)
    267,874,304 bytes freed by conversion
    Mon Feb 27 16:13:24 2017: Done

    This shows from almost 20GB, 267MB were freed from the conversion.

    Long story short, I feel like we're still on a wait and see basis for what is going to happen. I'd love to see Apple implement a manual deduplication feature potentially triggered in disk utility for APFS if they aren't ready to have it we periodic and automatic due to resource usage and the fact that so many still use mechanical hard drives.
     
  3. saldin macrumors member

    Joined:
    Jul 30, 2012
    #3
    Just did it on my iPhone 6 16 GB. No change in free space. Also, I don't perceive any performance difference (snappiness) between 10.2.1 and 10.3 now...
     
  4. mpavilion macrumors 6502a

    Joined:
    Aug 4, 2014
    Location:
    SFV, CA, USA
    #4
    I swear my phone feels faster, but it may just be the power of suggestion (as I had read about a potential speed boost w/APFS).
     
  5. saldin macrumors member

    Joined:
    Jul 30, 2012
    #5
    I don't know what to say, but that's how I see it. I did perform the update using iTunes instead of OTA, but that shouldn't make a difference.
     
  6. mpavilion macrumors 6502a

    Joined:
    Aug 4, 2014
    Location:
    SFV, CA, USA
    #6
    I fully concede that I may be experiencing placebo effect!
     
  7. Jetro macrumors regular

    Jetro

    Joined:
    Jan 12, 2016
    #7
    You should have more space now. I gained 4gb's I think on my 6s but it's 64gb. It should apply the same to any storage model.
     
  8. miknos Suspended

    miknos

    Joined:
    Mar 14, 2008
    #8
    I gained considerable space. I had 800mb free. After update I have 2.6GB.

    Can't say why. Maybe the update cleans some temporary files, maybe deletes 32bit libraries...
     
  9. Cristim74 macrumors member

    Cristim74

    Joined:
    Aug 27, 2016
    #9
    Can't say anything about 16Gb devices. I have upgraded 32Gb and 128Gb iPhones and 64Gb and 128Gb iPads, and on all four I got back between 1.5 to 2.5Gb of free space.
     
  10. cola79 macrumors regular

    Joined:
    Sep 19, 2013
    #10
    On my SE 16gb i got round about 2 Gigs extra space after update.
     
  11. LatestOne macrumors member

    LatestOne

    Joined:
    Mar 16, 2016
    Location:
    India
    #11
    It's very nice considerable space to get. Don't know what it does??
     
  12. gobikerider macrumors 68000

    gobikerider

    Joined:
    Apr 15, 2016
    Location:
    United States
    #12
    Can confirm iPhone 7 and Air 2 are noticebly smoother
     
  13. LordQ Suspended

    LordQ

    Joined:
    Sep 22, 2012
  14. jr866gooner macrumors 65816

    jr866gooner

    Joined:
    Aug 24, 2013
    #14
    5S here and keeping an eye on performance. Will see over next few days
     
  15. gMac macrumors member

    Joined:
    Apr 1, 2003
    Location:
    Charleston, SC
    #15
    My iPhone SE picked up at least 5 gigs.
    iPad Air feels much quicker. I'd been thinking about a new iPad but no need if things stay this fast.
    I think I picked up 1-2 gigs on the iPad also, but I forgot to check before upgrading.
     
  16. jr866gooner macrumors 65816

    jr866gooner

    Joined:
    Aug 24, 2013
    #16
    I am hopeful it will make a difference. I've read they've shortened the animation giving the effect of speed increase!
     
  17. zorinlynx macrumors 601

    zorinlynx

    Joined:
    May 31, 2007
    Location:
    Florida, USA
    #17
    Updating tends to purge cached data which will free up a varying about of space. Usually that space will be used again by cache as you use your device.

    This has been the case for years.
     
  18. gMac macrumors member

    Joined:
    Apr 1, 2003
    Location:
    Charleston, SC
    #18
    Yeah, I guess my attitude is cautious optimism for now. This has been the biggest uptick in storage that I've ever noticed, though.
     
  19. Mlrollin91 macrumors G4

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #19
    I got 800MB back on my 64GB Air 2 and 1.5GB back on my 128GB 7Plus. This is a combination of increased capacity and available storage.
     
  20. smorrissey macrumors 6502a

    Joined:
    Mar 12, 2015
    #20
    Air 2 16GB i just gain an entire 1GB after performing a clean ios 10.3 installation and there's no way of getting rid of it... =(
     
  21. whohasaquestion macrumors 6502

    Joined:
    Sep 17, 2011
    #21
    16gb 6s+

    11.75gb to 12.08gb in capacity
    1.9gb to 3.3gb in free space

    Will see if this is just cache deletion in the next few weeks.
     
  22. miknos Suspended

    miknos

    Joined:
    Mar 14, 2008
    #22
    Don't say that! Timmy might be listening!
     
  23. whohasaquestion macrumors 6502

    Joined:
    Sep 17, 2011
    #23
    How do you have that many (6gb) free space on a 16gb iPhone model? How many apps do you have installed? I mean...my top 5 apps take 2.5gb of space by themselves.
     
  24. LordQ Suspended

    LordQ

    Joined:
    Sep 22, 2012
    #24
    I only have 5 apps: Adguard, Apple TV Remote, Uber, WhatsApp and Clue.
     
  25. whohasaquestion macrumors 6502

    Joined:
    Sep 17, 2011
    #25
    Update:
    After a month of usage, I've lost about half a gig of free space without installing any new app. So it's more like 1.9gb to 2.8gb in free space.
     

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