Windows 11 only has 45% of random write speed in Nvme SSD

Anonymous
2021-10-17T03:51:05+00:00

As you see above, the other performance is about the same, but in RND 4K Q32 T16 the speed has dropped significantly. I know that because the two software versions are different and the condition of the computer is different, it is normal for the performance to fluctuate, but this performance also dropped too much, and the performance remained stable low after many tests at different times.

Windows for home | Windows 11 | Performance and system failures

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  1. Anonymous
    2021-12-10T02:36:44+00:00

    although my pc is unsupported, (threadripper 1950x), i must say i am having this exact same issue on my system. otherwise, its been smooth sailing all the way.

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  2. Anonymous
    2021-12-08T19:44:45+00:00

    Hi I already updated to the 4B2QGXA7 firmware and have retested. This did not solve the issue for me. Random Write IOPS are still stuck on 290k IOPS, where as before Windows 11 was installed on this drive it was running 800k IOPS on Random Write.

    I also noticed Samsung has released new firmware for the 970 EVO Plus. However, my Samsung Magician is not yet showing me the option to update that drive.

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  3. Anonymous
    2021-12-08T02:18:56+00:00

    Try updating the 980 Pro's firmware to 4B2QGXA7, released a few days ago. This fixed it for me.

    If Magician fails to install the firmware, configure it to load at startup (and then reboot). The firmware updater apparently uses a kernel driver that often fails unless it's loaded at boot time.

    Unsurprisingly, Win11's revamped I/O subsystem and particularly for NVMe devices (for Direct Storage) seems to require changes in some third-party drivers.

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  4. Anonymous
    2021-12-07T17:43:57+00:00

    A few days ago they were faster.

    I don´t know if this is interesting for someone....

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  5. Anonymous
    2021-12-02T00:53:46+00:00

    I have validated that VBS is not running by checking Device security --> Core isolation --> Memory integrity == Off

    Also checking msinfo32 (System Information) Virtualisation-based security == Not enabled

    Image

    I also tried setting the following Registry key:

    Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard

    EnableVirtualizationBasedSecurity == 0

    Image

    That also did not make a difference.

    So far it appears the dirve only opperates at full Random write IOPS when it is not the primary drive running Windows 11.

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