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[dm-devel] performance considerations with IO schedulers and DM multipathing



Hi,
 
Is there any advantage to one specific IO scheduler (below) that may improve IO performance / throughput when running with a round-robin failover policy? Has anyone done testing with this ... and willing to share results?
 
thanks,
Paul
 
  • Completely Fair Queuing—elevator=cfq (default)
  • Deadline—elevator=deadline
  • NOOP—elevator=noop
  • Anticipatory—elevator=as
  •  


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