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Ankit Bhardwaj

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titleconferencedate
PeeR: First-Class Scheduling for Latency-Critical eBPF Applications20th USENIX Symposium on Operating Systems Design and Implementation (OSDI '26)2026-07-13
PeeR makes eBPF programs preemptible and schedulable by inserting a lightweight two-cycle budget check at each helper call, saving interrupted state into a…
Talk on
Checkmate: Zero Performance Overhead Model Checkpointing via Network Gradient ReplicationNSDI '262026-05-04
Claims a system that achieves per-iteration checkpointing with zero GPU overhead by multicasting gradients off the training path and applying them on a…
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Unleashing The Potential of Datacenter SSDs by Taming Performance VariabilityNSDI '262026-05-04
Sandook is a rack-scale block storage system with a logically centralized controller plus lightweight clients and SSD agents that implements log-structured…
Talk
NrOS: Effective Replication and Sharing in an Operating System15th USENIX Symposium on Operating Systems Design and Implementation (OSDI '21)2021-07-14
NrOS implements a sequential kernel per NUMA node and keeps a replica per node, synchronizing replicas with an operation log with combiner batching so cores…
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Adaptive Placement for In-memory Storage FunctionsUSENIX ATC '202020-07-15
A system implements a server-internal cost model that observes user-defined functions and dynamically chooses client or storage execution for each invocation…
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On the Impact of Isolation Costs on Locality-aware Cloud SchedulingHotCloud '202020-07-13
Argues that embedding functions into storage saves data movement but pays nontrivial isolation overheads, so a scheduler must profile data movement and network…
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