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Euiseong Seo

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titleconferencedate
AWUPF Rediscovered: Atomic Writes to Unleash Pivotal Fault-Tolerance in SSDsFAST '252025-02-25
Claim: use the SSD NVMe AWUPF atomic-write unit (commonly 4KB AWUPF) to skip journaling for small Log‑RAID metadata updates, implemented in Poseidon OS by…
Talk
A Secure, Fast, and Resource-Efficient Serverless Platform with Function REWINDUSENIX ATC 20242024-07-10
REWIND claims to eliminate both memory and file persistence for warm containers while keeping latency near baseline by using kernel-level memory snapshots…
Talk on
We Ain't Afraid of No File Fragmentation: Causes and Prevention of Its Performance...22nd USENIX Conference on File and Storage Technologies (FAST '24)2024-02-27
Finds that fragmentation hurts SSD reads mainly through die-level collisions, not request splitting, because nonconsecutive die allocation from interleaved…
Talk
Z-Journal: Scalable Per-Core JournalingUSENIX ATC '212021-07-14
Z-Journal implements per-core journal stacks in the Linux kernel (replacing JBD2) and modifies ext4 to record a system-wide transaction order graph via…
Talk
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