EPISODE · Jun 22, 2017 · 59 MIN
#48: Optimizing Every Operation in a Writeoptimized File System
from Storage Developer Conference · host Rob Johnson, Research Assistant Professor, Stony Brook University
BetrFS is a new file system that outperforms conventional file systems by orders of magnitude on several fundamental operations, such as random writes, recursive directory traversals, and metadata updates, while matching them on other operations, such as sequential I/O, file and directory renames, and deletions. BetrFS overcomes the classic trade-off between random-write performance and sequential-scan performance by using new "write-optimized" data structures. This talk explains how BetrFS's design overcomes multiple file-system design trade-offs and how it exploits the performance strengths of write-optimized data structures.
What this episode covers
BetrFS is a new file system that outperforms conventional file systems by orders of magnitude on several fundamental operations, such as random writes, recursive directory traversals, and metadata updates, while matching them on other operations, such as sequential I/O, file and directory renames, and deletions. BetrFS overcomes the classic trade-off between random-write performance and sequential-scan performance by using new "write-optimized" data structures. This talk explains how BetrFS's design overcomes multiple file-system design trade-offs and how it exploits the performance strengths of write-optimized data structures.
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#48: Optimizing Every Operation in a Writeoptimized File System
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