Windows 10: Windows 10 Memory Compression

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  1. Posts : 20,870
    64-bit Windows 10 Pro build 16199
       20 Aug 2015 #1

    Windows 10 Memory Compression


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  2.    20 Aug 2015 #2

    Thanks, that is a good read.
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  3.    20 Aug 2015 #3

    That;s interesting. I have come to love yet hate some of the new hidden items in win10
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  4.    20 Aug 2015 #4

    69matrix69 said: View Post
    That;s interesting. I have come to love yet hate some of the new hidden items in win10

    Welcome to the forum.
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  5. Posts : 92
    64-bit 10240 10 Pro
       20 Aug 2015 #5

    Yes indeed thanks, a very interesting read. I hope it makes it to the RTM soon.
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  6.    21 Aug 2015 #6

    . . .no big deal, along with no problems. . .
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  7. Posts : 30
    Windows 7 Professional 64bit
       21 Aug 2015 #7

    Will this help Firefox to startup faster and be more performing on the web too?
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  8.    21 Aug 2015 #8

    "In summary, Memory compression allows Windows 10 to make better use of available memory on all systems by reducing physical memory utilization, resulting in fewer pagefile IO operations and a reduced reliance on disk. Furthermore, it improves the speed of writing to and reading from disk when MM determines paging must be enacted. In sum, we expect users to experience improved overall responsiveness and usability on all devices running Windows 10."

    The universal "no free lunch" principal implies that there must be a trade-off here. I'm assuming that memory compression is going to add to CPU load ( ? ) Also I would think that the benefit of memory compression would be seen mostly on systems with less installed ram.

    Now that this feature is available in the latest insider build I'm looking forward to third party reviews.
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  9.    21 Aug 2015 #9

    Each store manages fragmentation by compacting itself when necessary to ensure a good compression ratio. In practice, compressed memory takes up about 40% of the uncompressed size, and as a result on a typical device running a typical workload, Windows 10 writes pages out to disk only 50% as often as previous versions of the OS did. This will reduce the amount of time spent waiting for IO on all devices, but it will also improve the expected lifespan of systems featuring flash-based hard drives.
    Isn't the average lifespan of flash based hard drives already something like 87 years?

    Can we safely assume that if one has a lot of RAM (16GB or more) that this memory compression really isn't going to mean much to them?
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  10. Posts : 30
    Windows 7 Professional 64bit
       21 Aug 2015 #10

    I find their statement a bit ambiguous since it doesn't explicitly mention Windows 10 Preview.
    They've introduced it to Windows 10, what else could it be except for Windows 10 or Windows 10 Preview?

    Memory Manager Improvements:


    In Windows 10, we have added a new concept in the Memory Manager called a compression store, which is an in-memory collection of compressed pages...
    Announcing Windows 10 Insider Preview Build 10525 | Blogging Windows
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