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Learn more about LinuxCon + ContainerCon + CloudOpen China, happening June 19-20. 

Customize your schedule by experience level and/or presentation language: Refer to the “Filter by Type” list on the right to find a session based on topic and/or experience level. Presentation Language - Sessions are categorized as [C] Chinese, [C,E] Chinese with English Slides or [E] English at the end of each talk title.
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Monday, June 19 • 11:00 - 11:30
Evolving Ext4 for Shingled Disks [E] - Theodore Ts'o, Google

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Drive-Managed Shingled Magentic Recording (SMR) disks offer a higher capacity alternative to traditional disk drives. However, non-sequential workloads can show bi-modal behaviour. After a short period of high performance they enter a continuous period of low performance. We were able to make a small change (600 LOC) to ext4 that significantly improves the throughput in both modes, resulting in 2-13x improvements on metadata-heavy workloads, and 1.7-4.9x improvements on a file server benchmark. The changes also resulted in performance improvements on conventional disk drives.

Speakers
TT

Theodore Ts'o

Staff Programmer, Google
Theodore Ts'o is the first North American Linux Kernel Developer, and started working with Linux in September, 1991. He previously served as CTO for the Linux Foundation, and is currently employed at | Google. Theodore is a Debian Developer, and is the maintainer of the ext4 fil... Read More →


Monday June 19, 2017 11:00 - 11:30
Room 307A
  • Presentation Language English
  • Experience Level Any

Attendees (32)