Defrag SSD

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  1. f14tomcat's Avatar
    Posts : 54,299
    Multi-boot Windows 10 - RTM, RP, Beta, and Insider
       #21

    swarfega said:
    There was a huge thread on here some years ago about this which I can't find atm.
    Nick, this one? From 3 years ago?

    Why is Windows defragging my SSD?
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  2. swarfega's Avatar
    Posts : 7,194
    Windows 10 Pro 64-bit
       #22

    Yea thats the one!
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  3. cytherian's Avatar
    Posts : 327
    Windows 10 v. 20H2, Build 19042.867
       #23

    f14tomcat said:
    Yes, quite normal. Surprised it didn't take just a few seconds. Trim/Retrim are quick operations.
    Thanks! I had about 15 tabs open on 2 browsers, so my GUID cache was pretty taxed. I didn't explicitly time it but it may have been even less than 30 seconds (I said less than 1 minute just to pad for error).

    Given the very short execution time, I'm presuming this doesn't incur much wear at all to the SSD?
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  4. NavyLCDR's Avatar
    Posts : 15,659
    Windows 10 Pro
       #24

    cytherian said:
    Given the very short execution time, I'm presuming this doesn't incur much wear at all to the SSD?
    Trim reduces wear on the SSD because it increases the number of cells available for wear leveling.
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  5. kado897's Avatar
    Posts : 40,907
    Windows 10 Home 64bit v20H2 and insider builds
       #25

    W10 Tweaker said:
    There are only limited tasks I trust Windows to successfully complete, retrim & defrag would be two of them. I verified this performance on a daily basis for months after installing an SSD. Now, I don't worry about it.


    Attachment 327723

    C: & L: are partitions on an NVMe.
    D: & F: are partitions on a HDD.
    I wouldn't trust it. The scheduling of trim was broken for a long time last year. It ran every time defrag was run rather than every 28 days.
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  6. Posts : 1,423
    Windows 10 Home 2004 19041.804
       #26

    kado897 said:
    I wouldn't trust it. The scheduling of trim was broken for a long time last year. It ran every time defrag was run rather than every 28 days.
    What OS? I'm using 1909 & 2004 and haven't noticed anything irregular.
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  7. kado897's Avatar
    Posts : 40,907
    Windows 10 Home 64bit v20H2 and insider builds
       #27

    W10 Tweaker said:
    What OS? I'm using 1909 & 2004 and haven't noticed anything irregular.
    Think it was the insider version of 2004 before release.
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  8. f14tomcat's Avatar
    Posts : 54,299
    Multi-boot Windows 10 - RTM, RP, Beta, and Insider
       #28

    cytherian said:
    Thanks! I had about 15 tabs open on 2 browsers, so my GUID cache was pretty taxed. I didn't explicitly time it but it may have been even less than 30 seconds (I said less than 1 minute just to pad for error).

    Given the very short execution time, I'm presuming this doesn't incur much wear at all to the SSD?
    The actual Trim operation's wear and tear on the SSD is minuscule. All it's doing is erasing a pool of marked-unused cells in the controller. It does this to eliminate the need for the cell to be erased prior to write by the app and controller. Makes writing much faster. Obviously more complicated than that, but that's the gist.
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  9. f14tomcat's Avatar
    Posts : 54,299
    Multi-boot Windows 10 - RTM, RP, Beta, and Insider
       #29

    W10 Tweaker said:
    What OS? I'm using 1909 & 2004 and haven't noticed anything irregular.
    My 2 cents worth. Keith is right, it's still busted and not worth trying to understand and trust. Just turn it off and do it your self on a sensible schedule. HDDs, unless they are hard ridden and put away wet, can go for a long time. SSDs, weekly is kinda standard.
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  10. Cerawy's Avatar
    Posts : 872
    Windows 10 Home 64 bit
       #30

    As others have said, windows 10 defragmentation is optimized for solid state drives. However, defragging your ssd the old fashioned way is bad if you do it too many times, as it causes the ssd to wear down with time.
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