Windows 11 users complained about the slow write speed of NVMe SSD drives. Although Microsoft engineers admitted this problem three months ago, the problem still exists.
NVMe (Non-Volatile Memory Express) is a storage protocol that uses PCIe (PCI Express) to connect to the CPU. The bandwidth is more than twice that of the SATA interface, and it supports multiple I/O queues.
The issue is Report on Reddit At least three months ago, before the official release of Windows 11 in October, some users stated that in the 4K 64-thread write test, the ability to write 64 4K files in parallel was measured. Window 10 reported 1,600MB/s but Windows 11 only Can manage 91MB/s. “I am a member of the Microsoft File System team and I am investigating this issue,” said the first comment.
Another user reported a more serious problem using the popular CrystalMark benchmark tool, “4K IOPS dropped by 7 times.”
It is challenging to find the exact cause of the performance degradation.A few days ago, a user Report Using Samsung EVO 980 Pro random write performance drops by 60%, but there is no problem installing EVO 970 Plus on the same PC.
Another user with 980 Pro statement “I can confirm that this issue obviously only occurs on the main drive running Windows 11,” added: “I regret upgrading to Windows 11.”
Some users have found that VBS (Virtualization-based security, description here) Improve the problem-this should not be interpreted as a recommendation to do so.
Some people reported improvements after upgrading the EVO firmware, while others said there was no difference. This may be a problem of waiting for the driver to be updated.
By the way, we have been running Windows 11 since its release, and on the bright side, it is very stable. Fillet And the refreshed look looks good, and most applications run equally well on Windows 10.
In other words, it is still difficult to find new features worth upgrading beyond the possibility. Android support If relevant. On the downside, the poor taskbar and start menu are still annoying, as is the improved right-click menu in Explorer (although there is a registry hacker that can remove them). ®
