---In [email protected], <fabianch@...> wrote :
 
 ...
 
> The setting we are playing with are:
 > 
> On firebird.conf
 > 
> FileSystemCacheThreshold = 0
> FileSystemCacheSize = 17179869184 (this is 16 GB - the server has 32 GB 
> ram.)

  Does you ever read comments describing this setting ? I can do it for you : 

    "measured in % of total physical RAM". 

 
I.e. any value not in range [0..100] is wrong by definition. Read firebird.log, 
it should contain 
error message:

    "Incorrect FileSystemCacheSize setting %d. Using default (30 percent)."

If you really want to limit file system cache by 50% of avalable RAM - set 
FileSystemCacheSize 
value to 50 (and restart Firebird), no need to calc in bytes...

Regards,
Vlad

  

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