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d3mon187's avatar
d3mon187
Copper Contributor
May 28, 2019

Slow Server 2019 Disk Performance

I recently built a cluster of new to me Dell R620s, which run HyperV with various services.  I noticed right away that these servers were running slower than our old servers, with poor mysql performa...
storage
windows server
haidongh's avatar
haidongh
Icon for Microsoft rankMicrosoft
Jun 03, 2022

RudiHansen 

 

Please try this 

Setting the "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\MaxLazyWritePages" to HEX value of 2000  in Windows 2019

TheStev0's avatar
TheStev0
Copper Contributor
Mar 06, 2023

haidongh can you provide any documentation on this registry value and why you think it might be needed on Win2019 vs 2016?

  • Tiago_Meireles's avatar
    Tiago_Meireles
    Icon for Microsoft rankMicrosoft
    Aug 22, 2023
    Seems like a change on how Windows 2019 handles lazy write pages. Check if setting the HEX value to 2000 instead of the default will improve the performance.
    • Jake8623's avatar
      Jake8623
      Copper Contributor
      Jan 23, 2024
      i have the same problem and adding that value to server 2022 didnt fix. server 2019 22 and vnext all are much slower.

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