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Wednesday, March 11 • 4:20pm - 5:10pm
Optimizing Ceph Performance For All-Flash Architectures - Viyayendra Shamanna, SanDisk

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Ceph is a massively scalable, open source, software-defined distributed storage stack, which uniquely provides object, block and file access interfaces in one unified system. Most of the current Ceph deployments use SSDs for Ceph journal and hard drives as Ceph data store. But when the hard disk backend was replaced by an all-SSD infrastructure, multiple CPU bottlenecks in Ceph code were exposed. Major improvements were done to the Ceph OSD code to eliminate these bottlenecks. Some of the notable changes were removing a single dispatch queue bottleneck, a new sharded worker thread pool for efficient request processing, improved lock granularity, sharded file descriptor cache etc which resulted in performance improvements of 6X for block reads and 5X for object reads.


Vijayendra Shamanna (“Viju”)

Vijayendra Shamanna (“Viju”) is a Senior Manager with the Emerging Storage Solutions software team at SanDisk, Bangalore. SanDisk is a global leader in flash storage solutions from edge devices to cloud and enterprise data centers. Viju has over 18 years of experience as Senior... Read More →

Wednesday March 11, 2015 4:20pm - 5:10pm PDT
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