OSDI'20: 14th USENIX Conference on Operating Systems Design and ImplementationNovember 4 - 6, 2020 ISBN: 978-1-939133-19-9 Published: 04 November 2020 Sponsors: ORACLE, VMware, Google Inc., Amazon, Microsoft Get Alerts for this Conference Save to Binder Export Citation Bibliometrics Citation count 96 Downloads (6 weeks) 317 Downloads (12 months) Evaluations show that Vegito can perform 1.9 million TPC-C NewOrder transactions and 24 TPC-H-equivalent queries per second simultaneously, which retain the excellent performance of specialized OLTP and OLAP counterparts (e.g., DrTM+H and MonetDB). Second, it innovates on the underlying cryptographic machinery and constructs a new private information retrieval scheme, FastPIR, that reduces the time to process oblivious access requests for mailboxes. With the help of thousands of Lambda threads, Dorylus scales GNN training to billion-edge graphs. Although SSDs can be simplified under the current ZNS interface, its counterpart LFS must bear segment compaction overhead. Welcome to the SOSP 2021 Website. All submissions will be treated as confidential prior to publication on the USENIX OSDI 21 website; rejected submissions will be permanently treated as confidential. We also propose two file system techniques for ZNS+-aware LFS. Zeph enforces privacy policies cryptographically and ensures that data available to third-party applications complies with users' privacy policies. We compare Marius against two state-of-the-art industrial systems on a diverse array of benchmarks. The experimental results show that Penglai can support 1,000s enclave instances running concurrently and scale up to 512GB secure memory with both encryption and integrity protection. 23 artifacts received the Artifacts Functional badge (88%). Perennial 2.0 makes this possible by introducing several techniques to formalize GoJournals specification and to manage the complexity in the proof of GoJournals implementation. Forgot your password? Academic and industrial participants present research and experience papers that cover the full range of theory and practice of computer . Research Impact Score 9.24. . Most existing schedulers expect users to specify the number of resources for each job, often leading to inefficient resource use. Password Memory allocation represents significant compute cost at the warehouse scale and its optimization can yield considerable cost savings. In this paper, we propose a software-hardware co-design to support dynamic, fine-grained, large-scale secure memory as well as fast-initialization. Horcruxs JavaScript scheduler then uses this information to judiciously parallelize JavaScript execution on the client-side so that the end-state is identical to that of a serial execution, while minimizing coordination and offloading overheads. Hence, CLP enables efficient search and analytics on archived logs, something that was impossible without it. One important reason for the high cost is, as we observe in this paper, that many sanitizer checks are redundant the same safety property is repeatedly checked leading to unnecessarily wasted computing resources. When uploading your OSDI 2021 reviews for your submission to SOSP, you can optionally append a note about how you addressed the reviews and comments. The NVMe zoned namespace (ZNS) is emerging as a new storage interface, where the logical address space is divided into fixed-sized zones, and each zone must be written sequentially for flash-memory-friendly access. PLDI seeks outstanding research that extends and/or applies programming-language concepts to advance the field of computing. Across a wide range of pages, phones, and mobile networks covering web workloads in both developed and emerging regions, Horcrux reduces median browser computation delays by 31-44% and page load times by 18-37%. Copyright to the individual works is retained by the author[s]. Each new model trained with DP increases the bound on data leakage and can be seen as consuming part of a global privacy budget that should not be exceeded. While several new GNN architectures have been proposed, the scale of real-world graphsin many cases billions of nodes and edgesposes challenges during model training. will work with the steering committee to ensure that the symposium program will accommodate presentations for all accepted papers. Submissions may include as many additional pages as needed for references but not for appendices. JEL codes: Q18, Q28, Q57 . SOSP 2021 - Symposium on Operating Systems Principles Questions? Based on this observation, P3 proposes a new approach for distributed GNN training. The key insight in blk-switch is that Linux's multi-queue storage design, along with multi-queue network and storage hardware, makes the storage stack conceptually similar to a network switch. Qing Wang, Youyou Lu, Junru Li, and Jiwu Shu, Tsinghua University. To help more profitably utilize sanitizers, we introduce SanRazor, a practical tool aiming to effectively detect and remove redundant sanitizer checks. If you are uncertain about how to anonymize your submission, please contact the program co-chairs, osdi21chairs@usenix.org, well in advance of the submission deadline. The NAL eliminates remote PM accesses to hot items without inducing extra local PM accesses. All deadline times are 23:59 hrs UTC. SOSP 2021 - Symposium on Operating Systems Principles This yielded 6% fewer TLB miss stalls, and 26% reduction in memory wasted due to fragmentation. In particular, I'll argue for re-engaging with what computer hardware really is today and give two suggestions (among many) about how the OS research community can usefully do this, and exploit what is actually a tremendous opportunity. Submitted November 12, 2021 Accepted January 20, 2022. We convert five state-of-the-art PM indexes using Nap. We introduce a hybrid cryptographic protocol for privacy-adhering transformations of encrypted data. We implement and evaluate a suite of applications, including MICA, Raft and Set Algebra for document retrieval; and we demonstrate that the nanoPU can be used as a high performance, programmable alternative for one-sided RDMA operations. Consensus bugs are extremely rare but can be exploited for network split and theft, which cause reliability and security-critical issues in the Ethereum ecosystem. This fast path contains programmable hardware support for low latency transport and congestion control as well as hardware support for efficient load balancing of RPCs to cores. (Visa applications can take at least 30 working days to process.) Fluffy found two new consensus bugs in the most popular Geth Ethereum client which were exploitable on the live Ethereum mainnet. However, memory allocation decisions also impact overall application performance via data placement, offering opportunities to improve fleetwide productivity by completing more units of application work using fewer hardware resources. Starting with small invariant formulas and strongest possible invariants avoids large SMT queries, improving SMT solver performance. His work has included the Barrelfish multikernel research OS, as well as work on distributed stream processors, and using formal specifications to describe the hardware/software interfaces of modern computer systems. We prove that DistAI is guaranteed to find the -free inductive invariant that proves the desired safety properties in finite time, if one exists. To resolve the problem, we propose a new LFS-aware ZNS interface, called ZNS+, and its implementation, where the host can offload data copy operations to the SSD to accelerate segment compaction. There are two major GNN training obstacles: 1) it relies on high-end servers with many GPUs which are expensive to purchase and maintain, and 2) limited memory on GPUs cannot scale to today's billion-edge graphs. MAGE outperforms the OS virtual memory system by up to an order of magnitude, and in many cases, runs SC computations that do not fit in memory at nearly the same speed as if the underlying machines had unbounded physical memory to fit the entire computation. In this paper, we present Vegito, a distributed in-memory HTAP system that embraces freshness and performance with the following three techniques: (1) a lightweight gossip-style scheme to apply logs on backups consistently; (2) a block-based design for multi-version columnar backups; (3) a two-phase concurrent updating mechanism for the tree-based index of backups. Pages should be numbered, and figures and tables should be legible in black and white, without requiring magnification. Our further evaluation on 38 CVEs from 10 commonly-used programs shows that SanRazor reduced checks suffice to detect at least 33 out of the 38 CVEs. Submitted papers must be no longer than 12 single-spaced 8.5 x 11 pages, including figures and tables, plus as many pages as needed for references, using 10-point type on 12-point (single-spaced) leading, two-column format, Times Roman or a similar font, within a text block 7 wide x 9 deep. Log search and log archiving, despite being critical problems, are mutually exclusive. Existing frameworks optimize tensor programs by applying fully equivalent transformations, which maintain equivalence on every element of output tensors. . DistAI: Data-Driven Automated Invariant Learning for Distributed Protocols Jianan Yao, Runzhou Tao, Ronghui Gu, Jason Nieh . The paper review process is double-blind. Camera-ready submission (all accepted papers): 15 Mars 2022. DMons targeted optimizations provide 16.83% speedup on average (up to 53.14%), compared to a baseline that uses the highest level of compiler optimization. SOSP 2021 - Symposium on Operating Systems Principles DeSearch uses trusted hardware to build a network of workers that execute a pipeline of small search engine tasks (crawl, index, aggregate, rank, query). Session Chairs: Nadav Amit, VMware Research Group, and Ada Gavrilovska, Georgia Institute of Technology, Stephen Ibanez, Alex Mallery, Serhat Arslan, and Theo Jepsen, Stanford University; Muhammad Shahbaz, Purdue University; Changhoon Kim and Nick McKeown, Stanford University. She is the author of the textbook Interconnections (about network layers 2 and 3) and coauthor of Network Security. Researchers from the Software Systems Laboratory bagged Best Paper Awards at the 15th USENIX Symposium on Operating Systems Design and Implementation (OSDI 2021) and the 2021 USENIX Annual Technical Conference (USENIX ATC 2021).. Jay Lepreau Best Paper Award, OSDI'21. Of the 26 submitted artifacts: 26 artifacts received the Artifacts Available badge (100%). PET discovers and applies program transformations that improve computation efficiency but only maintain partial functional equivalence. (Oct 2018) Awarded an Intel Faculty Grant for Research on automated performance optimization (Sep. 2018) Our paper on Foreshadow is accepted to appear at USENIX Security. (Registered attendees: Sign in to your USENIX account to download these files. We also verified a simple NFS server using GoJournals specs, which confirms that they are helpful for application verification: a significant part of the proof doesnt have to consider concurrency and crashes. There is no explicit limit to the response, but authors are strongly encouraged to keep it under 500 words; reviewers are neither required nor expected to read excessively long responses. (Jan 2019) Our REPT paper won a best paper at OSDI'18 (Oct 2018) I will serve in the SOSP'19 PC. Uniquely, Dorylus can take advantage of serverless computing to increase scalability at a low cost. Web pages today commonly include large amounts of JavaScript code in order to offer users a dynamic experience. We have implemented a prototype of our design based on Penglai, an open-sourced enclave system for RISC-V. OSDI '21 Call for Papers | USENIX PDF Why Has Personality Psychology Played an Outsized Role in the We present NrOS, a new OS kernel with a safer approach to synchronization that runs many POSIX programs. While verifying GoJournal, we found one serious concurrency bug, even though GoJournal has many unit tests. The biennial ACM Symposium on Operating Systems Principles is the world's premier forum for researchers, developers, programmers, vendors and teachers of operating system technology. Indeed, it is a prime target for powerful adversaries such as nation states. Important Dates Abstract registrations due: Thursday, December 3, 2020, 3:00 pm PST Complete paper submissions due: Thursday, December 10, 2020, 3:00pm PST Author Response Period Oort Accepted to Appear at OSDI'2021 | Mosharaf Chowdhury The full program will be available in May 2021. HotNets provides a venue for discussing innovative ideas and for debating future research agendas in networking. My paper has accepted to appear in the EuroSys2020; I will have a talk at the Hotstorage'19; The Paper about GCMA Accepted to TC; Jiachen Wang, Institute of Parallel and Distributed Systems, Shanghai Jiao Tong University; Shanghai AI Laboratory; Engineering Research Center for Domain-specific Operating Systems, Ministry of Education, China; Ding Ding, Department of Computer Science, New York University; Huan Wang, Institute of Parallel and Distributed Systems, Shanghai Jiao Tong University; Shanghai AI Laboratory; Engineering Research Center for Domain-specific Operating Systems, Ministry of Education, China; Conrad Christensen, Department of Computer Science, New York University; Zhaoguo Wang and Haibo Chen, Institute of Parallel and Distributed Systems, Shanghai Jiao Tong University; Shanghai AI Laboratory; Engineering Research Center for Domain-specific Operating Systems, Ministry of Education, China; Jinyang Li, Department of Computer Science, New York University. blk-switch evaluation over a variety of scenarios shows that it consistently achieves s-scale average and tail latency (at both 99th and 99.9th percentiles), while allowing applications to near-perfectly utilize the hardware capacity. SOSP Conference - Home - ACM Digital Library USENIX, like other scientific and technical conferences and journals, prohibits these practices and may, on the recommendation of a program chair, take action against authors who have committed them. KEVIN combines a fast, lightweight, and POSIX compliant file system with a key-value storage device that performs in-storage indexing. We develop MAGE, an execution engine for SC that efficiently runs SC computations that do not fit in memory. Mothy's current research centers on Enzian, a powerful hybrid CPU/FPGA machine designed for research into systems software. This is the first OSDI in an odd year as OSDI moves to a yearly cadence. We demonstrate that Marius achieves the same level of accuracy but is up to one order of magnitude faster. This budget is a scarce resource that must be carefully managed to maximize the number of successfully trained models. Paper abstracts and proceedings front matter are available to everyone now. How can we design systems that will be reliable despite misbehaving participants? Metadata from voice calls, such as the knowledge of who is communicating with whom, contains rich information about peoples lives. Kirk Rodrigues, Yu Luo, and Ding Yuan, University of Toronto and YScope Inc. Authors should email the program co-chairs, osdi21chairs@usenix.org, a copy of the related workshop paper and a short explanation of the new material in the conference paper beyond that published in the workshop version. This formulation of memory management, which we call memory programming, is a generalization of paging that allows MAGE to provide a highly efficient virtual memory abstraction for SC. We develop a prototype of Zeph on Apache Kafka to demonstrate that Zeph can perform large-scale privacy transformations with low overhead. Federated Learning (FL) is an emerging direction in distributed machine learning (ML) that enables in-situ model training and testing on edge data. Last year, 70% of accepted OSDI papers participated in the . Writing a correct operating system kernel is notoriously hard. As a result, the design of a file system with respect to space management and crash consistency is simplified, requiring only 10.8K LOC for full functionality. Session Chairs: Dushyanth Narayanan, Microsoft Research, and Gala Yadgar, TechnionIsrael Institute of Technology, Jinhyung Koo, Junsu Im, Jooyoung Song, and Juhyung Park, DGIST; Eunji Lee, Soongsil University; Bryan S. Kim, Syracuse University; Sungjin Lee, DGIST. Authors must make a good faith effort to anonymize their submissions, and they should not identify themselves or their institutions either explicitly or by implication (e.g., through the references or acknowledgments). This motivates the need for a new approach to data privacy that can provide strong assurance and control to users. OSDI is "a premier forum for discussing the design, implementation, and implications of systems software." A total of six research papers from the department were accepted to the . Her robot soccer teams have been RoboCup world champions several times, and the CoBot mobile robots have autonomously navigated for more than 1,000km in university buildings. Manuela will present examples and discuss the scope of AI in her research in the finance domain. We present selective profiling, a technique that locates data locality problems with low-enough overhead that is suitable for production use. By submitting a paper, you agree that at least one of the authors will attend the conference to present it. Submissions violating the detailed formatting and anonymization rules will not be considered for review. Overall, the OSDI PC accepted 31 out of 165 submissions. OSDI 2021 papers summary | hacklog Proceedings Front Matter Professor Veloso is the Past President of AAAI (the Association for the Advancement of Artificial Intelligence), and the co-founder, Trustee, and Past President of RoboCup. The OSDI '21 program co-chairs have agreed not to submit their work to OSDI '21. Authors of each accepted paper must ensure that at least one author registers for the conference, and that their paper is presented in-person at the conference. Youngseok Yang, Seoul National University; Taesoo Kim, Georgia Institute of Technology; Byung-Gon Chun, Seoul National University and FriendliAI. NSDI 2021 - Research.com SanRazor adopts a novel hybrid approach it captures both dynamic code coverage and static data dependencies of checks, and uses the extracted information to perform a redundant check analysis. Four months after we reported the bugs to Geth developers, one of the bugs was triggered on the mainnet, and caused nodes using a stale version of Geth to hard fork the Ethereum blockchain. Cores can safely and concurrently read from their local kernel replica, eliminating remote NUMA accesses.
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