Contact your program co-chairs, osdi21chairs@usenix.org, or the USENIX office, submissionspolicy@usenix.org. How can we design systems that will be reliable despite misbehaving participants? 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. 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. Prepublication versions of the accepted papers from the summer submission deadline are available below. This paper demonstrates that it is possible to achieve s-scale latency using Linux kernel storage stack, even when tens of latency-sensitive applications compete for host resources with throughput-bound applications that perform read/write operations at throughput close to hardware capacity. Lifting predicates and crash framing make the specification easy to use for developers, and logically atomic crash specifications allow for modular reasoning in GoJournal, making the proof tractable despite complex concurrency and crash interleavings. 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%. The 15th USENIX Symposium on Operating Systems Design and Implementation (OSDI '21) will take place as a virtual event on July 14-16, 2021. Therefore, developers typically find data locality issues via dynamic profiling and repair them manually. Graph Neural Networks (GNNs) have gained significant attention in the recent past, and become one of the fastest growing subareas in deep learning. Mothy's current research centers on Enzian, a powerful hybrid CPU/FPGA machine designed for research into systems software. Log search and log archiving, despite being critical problems, are mutually exclusive. The conference papers and full proceedings are available to registered attendees now and will be available to everyone beginning Wednesday, July 14, 2021. In some cases, the quality of these artifacts is as important as that of the document itself. We describe PrivateKube, an extension to the popular Kubernetes datacenter orchestrator that adds privacy as a new type of resource to be managed alongside other traditional compute resources, such as CPU, GPU, and memory. The 15th USENIX Symposium on Operating Systems Design and Implementation (OSDI '21) will take place as a virtual event on July 1416, 2021. Only two types of supplementary material are permitted: source code described in the paper and formal proofs sketched in the paper. Our approach outperforms existing file systems on a block SSD by a wide margin 6.2 on average for metadata-intensive benchmarks. The chairs may reject abstracts or papers on the basis of egregious missing or extraneous conflicts. Zeph enforces privacy policies cryptographically and ensures that data available to third-party applications complies with users' privacy policies. Collaboration: You have a collaboration on a project, publication, grant proposal, program co-chairship, or editorship within the past two years (December 2018 through March 2021). Kyuhwa Han, Sungkyunkwan University and Samsung Electronics; Hyunho Gwak and Dongkun Shin, Sungkyunkwan University; Jooyoung Hwang, Samsung Electronics. sosp ACM Symposium on Operating Systems Principles. With her students, she had led research in AI, with a focus on robotics and machine learning, having concretely researched and developed a variety of autonomous robots, including teams of soccer robots, and mobile service robots. Academic and industrial participants present research and experience papers that cover the full range of theory and practice of computer . Session Chairs: Deniz Altinbken, Google, and Rashmi Vinayak, Carnegie Mellon University, Tanvir Ahmed Khan and Ian Neal, University of Michigan; Gilles Pokam, Intel Corporation; Barzan Mozafari and Baris Kasikci, University of Michigan. Memory allocation represents significant compute cost at the warehouse scale and its optimization can yield considerable cost savings. We focus on NVMe storage devices and show that it is natural to express these semantics in the kernel and the application and only requires a modest two-bit change to the device interface. Professor Veloso has been recognized with a multiple honors, including being a Fellow of the ACM, IEEE, AAAS, and AAAI. Based on the observation that invariants are often concise in practice, DistAI starts with small invariant formulas and enumerates all strongest possible invariants that hold for all samples. Instead of choosing among a small number of known algorithms, our approach searches in a "policy space" of fine-grained actions, resulting in novel algorithms that can outperform existing algorithms by specializing to a given workload. If your paper is accepted and you need an invitation letter to apply for a visa to attend the conference, please contact conference@usenix.org as soon as possible. This paper presents Zeph, a system that enables users to set privacy preferences on how their data can be shared and processed. All submissions will be treated as confidential prior to publication on the USENIX OSDI 21 website; rejected submissions will be permanently treated as confidential. All the times listed below are in Pacific Daylight Time (PDT). PLDI seeks outstanding research that extends and/or applies programming-language concepts to advance the field of computing. Ankit Bhardwaj and Chinmay Kulkarni, University of Utah; Reto Achermann, University of British Columbia; Irina Calciu, VMware Research; Sanidhya Kashyap, EPFL; Ryan Stutsman, University of Utah; Amy Tai and Gerd Zellweger, VMware Research. USENIX discourages program co-chairs from submitting papers to the conferences they organize, although they are allowed to do so. Moreover, to handle dynamic workloads, Nap adopts a fast NAL switch mechanism. Radia Perlman is a Fellow at Dell Technologies. For realistic workloads, KEVIN improves throughput by 68% on average. However, your OSDI submission must use an anonymized name for your project or system that differs from any used in such contexts. Fluffy found two new consensus bugs in the most popular Geth Ethereum client which were exploitable on the live Ethereum mainnet. The OSDI '21 program co-chairs have agreed not to submit their work to OSDI '21. Storm ensures security using a Security Typed ORM that refines the (type) abstractions of each layer of the MVC API with logical assertions that describe the data produced and consumed by the underlying operation and the users allowed access to that data. In this paper, we propose a software-hardware co-design to support dynamic, fine-grained, large-scale secure memory as well as fast-initialization. Attaching supplementary material is optional; if your paper says that you have source code or formal proofs, you need not attach them to convince the PC of their existence. 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. 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. Welcome to the 2021 USENIX Annual Technical Conference (ATC '21) submissions site! We also show that Marius can scale training to datasets an order of magnitude beyond a single machine's GPU and CPU memory capacity, enabling training of configurations with more than a billion edges and 550 GB of total parameters on a single machine with 16 GB of GPU memory and 64 GB of CPU memory. Please identify yourself as a presenter and include your mailing address in your email. In addition, CLP outperforms Elasticsearch and Splunk Enterprise's log ingestion performance by over 13x, and we show CLP scales to petabytes of logs. We convert five state-of-the-art PM indexes using Nap. Consensus bugs are bugs that make Ethereum clients transition to incorrect blockchain states and fail to reach consensus with other clients. The blockchain community considers this hard fork the greatest challenge since the infamous 2016 DAO hack. She has a PhD in computer science from MIT. The 20th ACM Workshop on Hot Topics in Networks (HotNets 2021) will bring together researchers in computer networks and systems to engage in a lively debate on the theory and practice of computer networking. 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. 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. Finding the inductive invariant of the distributed protocol is a critical step in verifying the correctness of distributed systems, but takes a long time to do even for simple protocols. Second, Fluffy uses multiple existing Ethereum clients that independently implement the specification as cross-referencing oracles. We demonstrate that KEVIN reduces the amount of I/O traffic between the host and the device, and remains particularly robust as the system ages and the data become fragmented. DistAI generates data by simulating the distributed protocol at different instance sizes and recording states as samples. When registering your abstract, you must provide information about conflicts with PC members. She has been recognized with many industry honors including induction into the National Academy of Engineering, the Inventor Hall of Fame, The Internet Hall of Fame, Washington State Academy of Science, and lifetime achievement awards from USENIX and SIGCOMM. (Jan 2019) Our REPT paper won a best paper at OSDI'18 (Oct 2018) I will serve in the SOSP'19 PC. Based on this observation, P3 proposes a new approach for distributed GNN training. We develop MAGE, an execution engine for SC that efficiently runs SC computations that do not fit in memory. Secure Computation (SC) is a family of cryptographic primitives for computing on encrypted data in single-party and multi-party settings. Her specialties include network routing protocols and network security. 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 . Calibrated interrupts increase throughput by up to 35%, reduce CPU consumption by as much as 30%, and achieve up to 37% lower latency when interrupts are coalesced. Existing frameworks optimize tensor programs by applying fully equivalent transformations, which maintain equivalence on every element of output tensors. In this paper, we present P3, a system that focuses on scaling GNN model training to large real-world graphs in a distributed setting. See the Preview Session page for an overview of the topics covered in the program. Weak Links in Authentication Chains: A Large-scale Analysis of Email Sender Spoofing Attacks Qing Wang, Youyou Lu, Junru Li, and Jiwu Shu, Tsinghua University. A PC member is a conflict if any of the following three circumstances applies: Institution: You are currently employed at the same institution, have been previously employed at the same institution within the past two years (not counting concluded internships), or are going to begin employment at the same institution during the review period. Paper abstracts and proceedings front matter are available to everyone now. Questions? A hardware-accelerated thread scheduler makes sub-nanosecond decisions, leading to high CPU utilization and low tail response time for RPCs. 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. Novel system designs, thorough empirical work, well-motivated theoretical results, and new application areas are all . 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; Registering abstracts a week before paper submission is an essential part of the paper-reviewing process, as PC members use this time to identify which papers they are qualified to review. Metadata from voice calls, such as the knowledge of who is communicating with whom, contains rich information about peoples lives. Today, privacy controls are enforced by data curators with full access to data in the clear. Even the little publishable OS work that is not based on Linux still assumes the same simplistic hardware model (essentially a multiprocessor VAX) that bears little resemblance to modern reality. Commonly used log archival and compression tools like Gzip provide high compression ratio, yet searching archived logs is a slow and painful process as it first requires decompressing the logs. JEL codes: Q18, Q28, Q57 . The OSDI Symposium emphasizes innovative research as well as quantified or insightful experiences in systems design and implementation. Sat, Aug 7, 2021 3 min read researches review. The program co-chairs will use this information at their discretion to preserve the anonymity of the review process without jeopardizing the outcome of the current OSDI submission. Submission of a response is optional. A glance at this year's OSDI program shows that Operating Systems are a small niche topic for this conference, not even meriting their own full session. Third, GNNAdvisor capitalizes on the GPU memory hierarchy for acceleration by gracefully coordinating the execution of GNNs according to the characteristics of the GPU memory structure and GNN workloads. Dorylus is up to 3.8 faster and 10.7 cheaper compared to existing sampling-based systems. Jason Mohoney and Roger Waleffe, University of WisconsinMadison; Henry Xu, University of Maryland, College Park; Theodoros Rekatsinas and Shivaram Venkataraman, University of WisconsinMadison. 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. Papers not meeting these criteria will be rejected without review, and no deadline extensions will be granted for reformatting. Ethereum is the second-largest blockchain platform next to Bitcoin. Machine learning (ML) models trained on personal data have been shown to leak information about users. Pollux is implemented and publicly available as part of an open-source project at https://github.com/petuum/adaptdl. This distinction forces a re-design of the scheduler. As a member of ACCT, I have served two years on the bylaws and governance committee and two years on the finance and audit committee. Taking place in Carlsbad, CA from 11-13 July, OSDI is a highly selective flagship conference in computer science, especially on the topic of computer systems. ), Program Co-Chairs: Angela Demke Brown, University of Toronto, and Jay Lorch, Microsoft Research. This is the first OSDI in an odd year as OSDI moves to a yearly cadence. To help more profitably utilize sanitizers, we introduce SanRazor, a practical tool aiming to effectively detect and remove redundant sanitizer checks. The hybrid segment recycling chooses a proper block reclaiming policy between segment compaction and threaded logging based on their costs. Our evaluation shows that NrOS scales to 96 cores with performance that nearly always dominates Linux at scale, in some cases by orders of magnitude, while retaining much of the simplicity of a sequential kernel.
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