skattoju4 opened a new pull request #3282: [WIP DO NOT MERGE] Fix slow vm 
creation when large sf snapshot count
URL: https://github.com/apache/cloudstack/pull/3282
 
 
   ## Description
   Slow VM creation times are experienced when using solid fire managed 
storage. It is suspected that this is caused by calls to getUsedBytes in the 
solid fire storage driver. Storage used by snapshots is not being computed 
efficiently resulting in a large number of DB queries.
   
   The short term fix is to only filter and compute size of snapshots that are 
in state "BackedUp"
   
   Steps to reproduce
   
   Attempt to create a VM in a Cloudstack instance that has a large number of 
snapshots
   Expected behaviour:
   VM creation should happen in a less than a few minutes
   
   Actual behaviour:
   VM creation takes around 5 minutes even with small images
   
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   ## Types of changes
   <!--- What types of changes does your code introduce? Put an `x` in all the 
boxes that apply: -->
   - [ ] Breaking change (fix or feature that would cause existing 
functionality to change)
   - [ ] New feature (non-breaking change which adds functionality)
   - [x] Bug fix (non-breaking change which fixes an issue)
   - [ ] Enhancement (improves an existing feature and functionality)
   - [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
   
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   ## How Has This Been Tested?
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