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Alexander_Dyubkin's avatar
Alexander_Dyubkin
Copper Contributor
Mar 04, 2024

Worktables FROM Cache Ratio

Hello. For some reason, one of my MS SQL 2019 runs shows that the "Worktable Ratio from Cache" is around "62%". I checked that no parameters were changed. My programmer says they don't change anything. Since I have no experience as a DBA, I would welcome any hint of what I might be research next.

In sys.dm_os_performance_counters i see 

Worktables From Cache Ratio 4964
Worktables From Cache Base 8002

I assumed there was not enough memory, but Buffer cache hit ratio is around 100%

Buffer cache hit ratio 14529
Buffer cache hit ratio base 14529

  • olafhelper's avatar
    olafhelper
    Bronze Contributor
    And what exactly is the problem here? Do you have any performance or other issues?
    • Alexander_Dyubkin's avatar
      Alexander_Dyubkin
      Copper Contributor

      olafhelper 

      No. There are no problems with performance, it just suddenly dropped from 92% to 62% after a reboot and does not rise. On other servers, this value also drops when rebooting, but gradually returns to normal. I'm afraid this is some kind of symptom.

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