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DTSTAMP:20240626T180034Z
LOCATION:3008\, 3rd Floor
DTSTART;TZID=America/Los_Angeles:20240627T144500
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UID:dac_DAC 2024_sess150_RESEARCH656@linklings.com
SUMMARY:Balloon-ZNS: Constructing High-Capacity and Low-Cost ZNS SSDs with
  Built-in Compression
DESCRIPTION:Research Manuscript\n\nYu Wang, Zibin Sun, and You Zhou (Huazh
 ong University of Science and Technology); Tao Lu (DapuStor Corporation); 
 and Changsheng Xie and Fei Wu (Huazhong University of Science and Technolo
 gy)\n\nThis paper proposes Balloon-ZNS that enables transparent compressio
 n in emerging storage devices ZNS SSDs to enhance cost efficiency. ZNS SSD
 s require data pages to be stored and aligned in logical zones and flash b
 locks, conflicting with the management of variable-length compressed pages
 . Motivated by an observation that compressibility locality widely exists 
 in data streams, Balloon-ZNS performs compressibility-adaptive, slot-align
 ed storage management to address the conflict. Evaluation with RocksDB sho
 ws Balloon-ZNS can reap more than 80% of the compression gain while achiev
 ing -7% to 14% higher throughput than a vanilla ZNS SSD, on average, when 
 data compressibility is not poor.\n\nTopic: Embedded Systems\n\nKeyword: E
 mbedded Memory and Storage Systems\n\nSession Chair: Filippo Carloni (Poli
 tecnico di Milano)
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