By reducing the intensity of search processes, Microsoft was able to achieve faster Windows 10 May 2020 Update (version 2004) on devices with hard drives.
Windows 10 computers can become slower over time. There are ways to improve the performance of the device yourself, but apparently, Microsoft became interested in this problem and decided to introduce improvements in the new Windows 10 May 2020 Update (version 2004).
In the Windows 10 October 2019 Update (version 1909), Microsoft made significant changes to the Cortana architecture and completely separated the voice assistant from the Windows search. The May 2020 Update will improve the disk space indexing tool to reduce disk load.
Microsoft claims that the search service (Windows Search) will now be able to better determine peak load times and optimize the performance of the indexing tool. This is confirmed by numerous tests in virtual machines and on real equipment with various configurations.
The Windows 10 May 2020 Update really works faster on computers equipped with hard disks (HDDs), which tend to be slower than solid state drives (SSDs).
Hard drives are physically larger than SSDs and exhibit lower read and write speeds. When you start a process that uses hard disk intensively, the computer will run slower. The Windows Search service puts a significant strain on the low subsystem, in particular the system drive.
Due to the decrease in the intensity of search processes, Microsoft was able to achieve a faster May 2020 Update on devices with hard drives.
Users of computers with SSDs are unlikely to notice any significant changes. This is due to the fact that SSDs can initially boast much lower latency compared to HDDs.
In some situations, indexing processes can still have a noticeable effect on the performance of PCs with SSDs, as well as increase the load on the processor and disk subsystem.
Windows 10 version 2004 will limit or completely stop indexing processes when you move files or when your disk is actively used.
The ability of Windows Search to adjust indexing activity will prevent such slowdowns on both SSDs and HDDs.
Work on Windows 10 May 2020 Update is almost complete. The release is due next month. Thus, if you encounter the problem of increased disk load, then next month you can finally get a fix.
File Indexing Enhancements
Microsoft continues to improve the logic of Windows search so that the system can automatically determine when to index and when to pause these processes to improve performance.
The basic idea is very simple: Windows 10 will not perform indexing while you are actively using the device.
Microsoft plans to update its Windows search optimization algorithm with the release of Windows 10 20H2 “Manganese” later this year.