RE: CephFs performance data

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Ben,
Thanks for the first cut data on CephFS , it was really helpful.
Do you mind to send out the slides ?
Also, continuing the discussion on 4K SW throughput is ~1GB/S , if you are running test with direct IO, client Linux system can't coalesce the writes and I didn't see much coalescing at the OSD servers as well. Unless CephFS has some coalescing logic it will be good if we can find out how we are getting this bigger throughput for 4K. Let me know if I am missing something..

Thanks & Regards
Somnath
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