himanshug commented on issue #7932: CompressionUtils performance improvement ask
URL: 
https://github.com/apache/incubator-druid/issues/7932#issuecomment-505318978
 
 
   what was the version where same zipping operation was taking 1 second ?
   
   If you use "local" deep storage then I "guess" it could be due to explicit 
"fsync" that was enabled sometime last year and could be really responsible for 
this time. but that was done to fix corruption issues.

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