]> 2026-09-08T17:24:53+09:00 Lesson:xrp in kernel storage functions with ebpf 49cdd043 3000 ko Storage engines with short, data-dependent lookup chains on NVMe. Limits: Logic is constrained by eBPF verification and kernel-state interfaces; exact evaluation details were not extracted. XRP adds an eBPF hook in the NVMe driver and safely propagates selected kernel/application state to chained storage functions. S3ResearchAgent medium Venue: OSDI. Year: 2022. User-kernel crossings and repeated I/O round trips penalize pointer-chasing storage operations. Verification: official USENIX page and abstract; confidence=high. 2026-07-16T15:03:00Z 2461238.1270833 XRP: In-Kernel Storage Functions with eBPF. OSDI 2022. Verified in-kernel extensions can collapse dependent I/O round trips without moving a full database into the kernel. XRP: In-Kernel Storage Functions with eBPF workloads=BPF-KV and WiredTiger; baselines=conventional userspace I/O paths; metrics=throughput and latency; results=significant qualitative improvement; no exact number in official abstract Can application-specific storage logic execute safely in the kernel close to NVMe completion paths? lab Place bounded, verified continuation logic at the device completion point. Draft 2026-07-18T15:00:47Z 2461240.125544 2026-07-18T15:00:47Z 2461240.125544 xrp in kernel storage functions with ebpf 49cdd043 3000 ev_c76fa73fe8de46f8 2026-07-16T15:03:01Z 2461238.1270949 S3ResearchAgent XRP: In-Kernel Storage Functions with eBPF. OSDI 2022. paper Bibliographic paper record. not_recorded xrp in kernel storage functions with ebpf 49cdd043# 4a5b8489b4198830a3e06567c43f0197 3000 verified-content-v1-0133 2026-07-16T18:46:11Z 2461238.2820718 S3ResearchAgent Yuhong Zhong et al., "XRP: In-Kernel Storage Functions with eBPF", OSDI 2022. paper Verification: official USENIX page and abstract; confidence=high. Canonical title: XRP: In-Kernel Storage Functions with eBPF Question: Can application-specific storage logic execute safely in the kernel close to NVMe completion paths? Context: User-kernel crossings and repeated I/O round trips penalize pointer-chasing storage operations. Method: XRP adds an eBPF hook in the NVMe driver and safely propagates selected kernel/application state to chained storage functions. Evaluation: workloads=BPF-KV and WiredTiger; baselines=conventional userspace I/O paths; metrics=throughput and latency; results=significant qualitative improvement; no exact number in official abstract Interpretation: Verified in-kernel extensions can collapse dependent I/O round trips without moving a full database into the kernel. Reusable lesson: Place bounded, verified continuation logic at the device completion point. Applicability: Storage engines with short, data-dependent lookup chains on NVMe. Limits: Logic is constrained by eBPF verification and kernel-state interfaces; exact evaluation details were not extracted. not_recorded xrp in kernel storage functions with ebpf 49cdd043# 10260eb09245badde6b1e91929502bfa 3000 canonical-paper-v2-49cdd043 2026-07-18T05:43:07Z 2461239.7382755 S3ResearchAgent Yuhong Zhong et al., "XRP: In-Kernel Storage Functions with eBPF", OSDI 2022. paper Verification: official USENIX page and abstract; confidence=medium. Canonical title: XRP: In-Kernel Storage Functions with eBPF Question: Can application-specific storage logic execute safely in the kernel close to NVMe completion paths? Context: User-kernel crossings and repeated I/O round trips penalize pointer-chasing storage operations. Method: XRP adds an eBPF hook in the NVMe driver and safely propagates selected kernel/application state to chained storage functions. Evaluation: workloads=BPF-KV and WiredTiger; baselines=conventional userspace I/O paths; metrics=throughput and latency; results=significant qualitative improvement; no exact number in official abstract Interpretation: Verified in-kernel extensions can collapse dependent I/O round trips without moving a full database into the kernel. Reusable lesson: Place bounded, verified continuation logic at the device completion point. Applicability: Storage engines with short, data-dependent lookup chains on NVMe. Limits: Logic is constrained by eBPF verification and kernel-state interfaces; exact evaluation details were not extracted. official_abstract xrp in kernel storage functions with ebpf 49cdd043# 4089d057b86b05d137337d39741ec81b 3000 2026-07-18T15:00:47Z 2461240.125544 S3ResearchAgent verify_c579606d19b3966c1ef5 partial_source context 보존 원문 객체를 확보했으나 이 일괄 검증에서는 claim-bearing 범위를 재판정하지 않아 결론을 보류함. inconclusive c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 보존 파일 objects/sha256/c5/c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 ev_c76fa73fe8de46f8 3370fac5fc38c3b8fd4645ff276285bfad32d47673bd42d196dcbb9b69030adc xrp in kernel storage functions with ebpf 49cdd043# 4ff752b5c99c93cf8f329dfcf00fe3b5 3000 2026-07-18T15:00:47Z 2461240.125544 S3ResearchAgent verify_6ebf3a5990bd8f91b207 partial_source context 보존 원문 객체를 확보했으나 이 일괄 검증에서는 claim-bearing 범위를 재판정하지 않아 결론을 보류함. inconclusive c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 보존 파일 objects/sha256/c5/c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 verified-content-v1-0133 d2c049e4c83dd7e732c49cf1ca6aa1b2689e39bf17d44782a6bebc1cf86ed10e xrp in kernel storage functions with ebpf 49cdd043# 78e825d8f916c1556c5cef7a05517471 3000 2026-07-18T15:00:47Z 2461240.125544 S3ResearchAgent verify_5a752df0a8705e887666 partial_source context 보존 원문 객체를 확보했으나 이 일괄 검증에서는 claim-bearing 범위를 재판정하지 않아 결론을 보류함. inconclusive c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 보존 파일 objects/sha256/c5/c5faaae481d6d6992272849dea995901823dc3b31d977f9885e6be4c4c064b13 canonical-paper-v2-49cdd043 de007c60ff36b1ebdf563eff1bb3522fb3628ac0b68341eb805935b2b9ab00be xrp in kernel storage functions with ebpf 49cdd043# c378f7909d3dadd5de6ef33b8b88671f