Lesson:task aware virtual machine scheduling for i o performance f431ccbe
| 제목 | Task-aware Virtual Machine Scheduling for I/O Performance |
|---|---|
| 궁금했던 점 | CPU-bound와 I/O-bound task가 같은 VM에 섞일 때 CPU fairness를 깨지 않고 I/O task만 빠르게 wake/run할 수 있는가? |
| 해본 것 | VMM이 CR3와 event timing을 이용해 guest task의 I/O-boundedness를 추론하고 block/network event와 상관시킨다. 관련 I/O task를 처리하는 동안만 vCPU를 `partial boosting`하고, `PBratio`로 과도한 boost를 제한한다. |
| 당시 조건 | Publication scope: international. Lab publication metadata:
1. Hwanju Kim, Hyeontaek Lim, Jinkyu Jeong, Heeseung Jo, Joonwon Lee, "Task-aware Virtual Machine Scheduling for I/O Performance," in Proceedings of ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environment (VEE 2009), Washington DC, USA, March, 2009 Verification level: full_text. Sources checked: https://doi.org/10.1145/1508293.1508308 https://yonsei.elsevierpure.com/en/publications/task-aware-virtual-machine-scheduling-for-io-performance/ https://www.researchgate.net/publication/221137884_Task-aware_virtual_machine_scheduling_for_IO_performance |
| 실제 결과 | synthetic mixed workloads와 realistic applications에서 I/O responsiveness/throughput을 개선하면서 VM 간 CPU fairness를 유지했다. full text는 inspection-window와 correlation이 block throughput을 높이고 false boosting을 줄임을 보이지만, 공개 summary에 단일 headline speedup은 없다. |
| 왜 그랬는지 | event correlation은 best-effort이며 false positive/negative가 가능하다. PBratio와 inspection window가 responsiveness, throughput, fairness 사이 trade-off를 만든다.
Technical interpretation: coarse VM-level boost를 task/event 기간으로 축소하고 사용량 cap을 두면 intra-VM heterogeneity를 다룰 수 있다. |
| 다음에 기억할 것 | coarse VM-level boost를 task/event 기간으로 축소하고 사용량 cap을 두면 intra-VM heterogeneity를 다룰 수 있다. |
| 언제 맞는지 | Xen형 hypervisor에서 mixed CPU/I/O workloads의 tail/response latency 개선에 해당한다. |
| 신뢰도 | 높음 |
| 관련 자료 | Publication record 1: Hwanju Kim, Hyeontaek Lim, Jinkyu Jeong, Heeseung Jo, Joonwon Lee, "Task-aware Virtual Machine Scheduling for I/O Performance," in Proceedings of ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environment (VEE 2009), Washington DC, USA, March, 2009 |
| 자료 출처 | 우리 기록 |
| 작성자 | S3ResearchAgent |
| 처음 작성한 시각 (UTC) | 2026-07-16T15:08:47.066157Z |
| 마지막 수정 시각 (UTC) | 2026-07-18T15:00:33.610458Z |
근거 ev_bc834d47e5cf4677: Hwanju Kim, Hyeontaek Lim, Jinkyu Jeong, Heeseung Jo, Joonwon Lee, "Task-aware Virtual Machine Scheduling for I/O Performance," in Proceedings of ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environment (VEE 2009), Washington DC, USA, March, 2009
논문 · 확인 범위: 기록 안 됨 · S3ResearchAgent · 2026-07-16T15:08:48.087532Z
Source: Yonsei University Computer Systems Laboratory publication list supplied by the user. Manifestation 1 of 1.
근거 canonical-paper-v2-f431ccbe: Hwanju Kim, Hyeontaek Lim, Jinkyu Jeong, Heeseung Jo, Joonwon Lee, "Task-aware Virtual Machine Scheduling for I/O Performance" in Proceedings of ACM SIGPLAN/SIGOPS International Conference on Virtual Execution Environment (VEE 2009), Washington DC, USA, March, 2009
(원문 열기)
논문 · 확인 범위: 원문 확인 · S3ResearchAgent · 2026-07-18T05:39:05.873240Z
정본 Lesson 보강 근거. 검토 원본: Lesson:technical_review_task_aware_virtual_machine_scheduling_for_i_o_performance_26a8da47. 확인 범위: full_text. 확인한 자료: https://doi.org/10.1145/1508293.1508308 ; https://yonsei.elsevierpure.com/en/publications/task-aware-virtual-machine-scheduling-for-io-performance/ ; https://www.researchgate.net/publication/221137884_Task-aware_virtual_machine_scheduling_for_IO_performance. 질문, 방법, 평가, 해석, 재사용 교훈, 적용 범위와 한계를 같은 Lesson 본문에 통합했습니다.
자료 검증 verify_86729796b3da2caebd49:
ev_bc834d47e5cf4677 ·
판단 보류
확인 범위: 서지정보만 확인 · 주장: context · S3ResearchAgent · 2026-07-18T15:00:33.479431Z
자료: R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=689990da723c183d73e5102f6b5a7c8972497dfa210f09dd79bb20472fb857d5 / 위치: 보존 파일 manifest.json
수집 manifest의 실패 원장만 보존되어 원문 주장을 검증하지 못함.
자료 검증 verify_7b6cb421b538326388da:
canonical-paper-v2-f431ccbe ·
지지함
확인 범위: 원문 확인 · 주장: observation,interpretation,reusable_lesson · S3ResearchAgent · 2026-07-18T15:00:33.610458Z
자료: R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=8dc71fdf36039005c4dd4ca3e6c3eebfc618d6f23cac2f8abb10950af421a05d; independently adjudicated claim-bearing primary source / 위치: Sections 3.1-3.3, 4, 5.1-5.3, and 7; PBratio definition in Section 3.2.
observation=supported; interpretation=supported; reusable_lesson=supported