orderlab.github.io/projects.html at main · OrderLab/orderlab.github.io · GitHub

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---
layout: default
title: Projects
---

<section class="project-page-hero">
  <div class="container">
    <div class="project-page-hero__media" aria-hidden="true">
      <img src="{{ '/assets/img/project/traincheck_logo.png' | relative_url }}" alt="">
      <img src="{{ '/assets/img/project/phoenix.png' | relative_url }}" alt="">
      <img src="{{ '/assets/img/project/xinda.png' | relative_url }}" alt="">
      <img src="{{ '/assets/img/project/panorama.png' | relative_url }}" alt="">
    </div>
    <div class="project-page-hero__content">
      <p class="project-page-kicker">Representative Projects</p>
      <h1>Systems for detecting, tolerating, and recovering from complex failures.</h1>
      <p>OrderLab builds practical tools for reliable AI training, dependable distributed systems, production debugging, and operating-system support. This page highlights a representative slice of our recent and foundational work.</p>
      <p>Most of our lab's code repositories are hosted on <a href="https://github.com/OrderLab" target="_blank" rel="noopener">GitHub</a>.</p>
      <div class="project-page-chips" aria-label="Project focus areas">
        <span>AI training reliability</span>
        <span>Distributed systems</span>
        <span>Fault injection</span>
        <span>Runtime checking</span>
        <span>OS support</span>
      </div>
    </div>
  </div>
</section>

<section class="section-margin project-page-section">
  <div class="container">
    <div class="section-intro text-center">
      <h2 class="section-intro__title">Featured Projects</h2>
      <p class="section-intro__subtitle">Recent systems and tools that represent the lab's current research directions.</p>
    </div>

    <div class="project-page-grid">
      <article class="project-page-card project-page-card--wide">
        <div class="project-page-card__media">
          <img class="project-logo-fit" src="{{ '/assets/img/project/opguard_wordmark.png' | relative_url }}" alt="OpGuard">
        </div>
        <div class="project-page-card__content">
          <p class="project-page-card__tag">OSDI 2026</p>
          <h3>OpGuard</h3>
          <p>OpGuard uses bitwise alignment to pinpoint the first divergent operator, deployed at production LLM training to cut debugging from days to minutes.</p>
          <div class="project-links" aria-label="OpGuard links">
            <a class="project-link-icon" href="{{ '/paper/opguard-osdi26.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
            <a class="project-link-icon" href="https://orderlab.io/OpGuard" target="_blank" rel="noopener" title="Website"><i class="fas fa-external-link-alt" aria-hidden="true"></i><span>Website</span></a>
          </div>
        </div>
      </article>

      <article class="project-page-card project-page-card--wide">
        <div class="project-page-card__media">
          <img class="project-logo-fit" src="{{ '/assets/img/project/traincheck_logo.png' | relative_url }}" alt="TrainCheck">
        </div>
        <div class="project-page-card__content">
          <p class="project-page-card__tag">OSDI 2025</p>
          <h3>TrainCheck</h3>
          <p>TrainCheck catches silent errors in deep learning training by learning semantic invariants from sample pipelines and turning them into proactive runtime checks.</p>
          <div class="project-links" aria-label="TrainCheck links">
            <a class="project-link-icon" href="{{ '/paper/traincheck-osdi25-preprint.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
            <a class="project-link-icon" href="https://github.com/OrderLab/TrainCheck" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
          </div>
        </div>
      </article>

      <article class="project-page-card project-page-card--wide">
        <div class="project-page-card__media">
          <img src="{{ '/assets/img/project/trainverify.png' | relative_url }}" alt="TrainVerify figure">
        </div>
        <div class="project-page-card__content">
          <p class="project-page-card__tag">SOSP 2025</p>
          <h3>TrainVerify</h3>
          <p>TrainVerify uses equivalence-based verification to check the parallelization logic of distributed LLM training and eliminate subtle correctness bugs.</p>
          <div class="project-links" aria-label="TrainVerify links">
            <a class="project-link-icon" href="{{ '/paper/trainverify-sosp25.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
            <a class="project-link-icon" href="https://github.com/verify-llm/TrainVerify" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
          </div>
        </div>
      </article>

      <article class="project-page-card">
        <div class="project-page-card__media">
          <img src="{{ '/assets/img/project/phoenix.png' | relative_url }}" alt="Phoenix figure">
        </div>
        <div class="project-page-card__content">
          <p class="project-page-card__tag">SOSP 2025</p>
          <h3>Phoenix</h3>
          <p>Phoenix introduces OS-level optimistic recovery and partial process state preservation to improve software availability after failures.</p>
          <div class="project-links" aria-label="Phoenix links">
            <a class="project-link-icon" href="{{ '/paper/phoenix-sosp25.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
            <a class="project-link-icon" href="https://github.com/OrderLab/phoenix" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
          </div>
        </div>
      </article>

      <article class="project-page-card">
        <div class="project-page-card__media">
          <img src="{{ '/assets/img/project/atropos.png' | relative_url }}" alt="Atropos figure">
        </div>
        <div class="project-page-card__content">
          <p class="project-page-card__tag">SOSP 2025</p>
          <h3>Atropos</h3>
          <p>Atropos mitigates application resource overload with targeted task cancellation, preserving useful work while shedding harmful load.</p>
          <div class="project-links" aria-label="Atropos links">
            <a class="project-link-icon" href="{{ '/paper/atropos-sosp25.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
            <a class="project-link-icon" href="https://github.com/OrderLab/Atropos" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
          </div>
        </div>
      </article>

      <article class="project-page-card">
        <div class="project-page-card__media">
          <img src="{{ '/assets/img/project/t2c.png' | relative_url }}" alt="T2C figure">
        </div>
        <div class="project-page-card__content">
          <p class="project-page-card__tag">OSDI 2025</p>
          <h3>T2C</h3>
          <p>T2C derives semantic checkers from existing system tests, transforming developer-written test logic into runtime checks for silent distributed-system failures.</p>
          <div class="project-links" aria-label="T2C links">
            <a class="project-link-icon" href="{{ '/paper/t2c-osdi25-preprint.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
            <a class="project-link-icon" href="https://github.com/OrderLab/T2C" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
          </div>
        </div>
      </article>

      <article class="project-page-card">
        <div class="project-page-card__media">
          <img class="project-xinda-fit" src="{{ '/assets/img/project/xinda.png' | relative_url }}" alt="Xinda figure">
        </div>
        <div class="project-page-card__content">
          <p class="project-page-card__tag">NSDI 2025</p>
          <h3>Xinda</h3>
          <p>Xinda combines automated slow-fault testing with lightweight adaptive detection to improve slow-fault tolerance in modern distributed systems.</p>
          <div class="project-links" aria-label="Xinda links">
            <a class="project-link-icon" href="{{ '/paper/xinda-nsdi25-preprint.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
            <a class="project-link-icon" href="https://github.com/OrderLab/xinda" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
          </div>
        </div>
      </article>

      <article class="project-page-card">
        <div class="project-page-card__mark">
          <i class="fas fa-database" aria-hidden="true"></i>
        </div>
        <div class="project-page-card__content">
          <p class="project-page-card__tag">Benchmark</p>
          <h3>DistDebug-Bench</h3>
          <p>DistDebug-Bench evaluates code-level diagnosis of distributed-system failures, providing a benchmark for debugging tools on realistic distributed failures.</p>
          <div class="project-links" aria-label="DistDebug-Bench links">
            <a class="project-link-icon" href="{{ '/distdebug-bench/' | relative_url }}" title="Project page"><i class="fas fa-external-link-alt" aria-hidden="true"></i><span>Project</span></a>
            <a class="project-link-icon" href="https://github.com/OrderLab/distdebug-bench" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
          </div>
        </div>
      </article>
    </div>
  </div>
</section>

<section class="section-margin project-page-section project-page-section--tint">
  <div class="container">
    <div class="section-intro text-center">
      <h2 class="section-intro__title">More Representative Systems</h2>
      <p class="section-intro__subtitle">Selected projects across failure exposure, runtime checking, observability, recovery, and OS resource management.</p>
    </div>

    <div class="project-mini-grid">
      <article class="project-mini-card">
        <div class="project-mini-card__icon"><i class="fas fa-random" aria-hidden="true"></i></div>
        <p class="project-page-card__tag">SOSP 2024</p>
        <h3>Anduril</h3>
        <p>Feedback-driven fault injection that quickly reproduces a target fault-induced production failure in distributed systems.</p>
        <div class="project-links" aria-label="Anduril links">
          <a class="project-link-icon" href="{{ '/paper/anduril-sosp24.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/OrderLab/Anduril" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__icon"><i class="fas fa-bug" aria-hidden="true"></i></div>
        <p class="project-page-card__tag">NSDI 2024</p>
        <h3>Legolas</h3>
        <p>State-guided fault injection that infers abstract states from code to expose partial-failure bugs in large distributed systems.</p>
        <div class="project-links" aria-label="Legolas links">
          <a class="project-link-icon" href="{{ '/paper/legolas-nsdi24-preprint.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/OrderLab/Legolas" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__icon"><i class="fas fa-tachometer-alt" aria-hidden="true"></i></div>
        <p class="project-page-card__tag">SOSP 2023</p>
        <h3>pBox</h3>
        <p>Application-level mechanisms for pushing performance isolation boundaries into applications.</p>
        <div class="project-links" aria-label="pBox links">
          <a class="project-link-icon" href="{{ '/paper/pbox-sosp23.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/OrderLab/pBox" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__icon"><i class="fas fa-check-double" aria-hidden="true"></i></div>
        <p class="project-page-card__tag">OSDI 2022</p>
        <h3>OathKeeper</h3>
        <p>Runtime checking for silent semantic violations in large distributed systems, motivated by failures that escape generic detectors.</p>
        <div class="project-links" aria-label="OathKeeper links">
          <a class="project-link-icon" href="{{ '/paper/oathkeeper-osdi22.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/OrderLab/OathKeeper" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__icon"><i class="fas fa-project-diagram" aria-hidden="true"></i></div>
        <p class="project-page-card__tag">OSDI 2022</p>
        <h3>Orbit</h3>
        <p>Operating-system support for safe and efficient auxiliary execution, enabling speculative work without compromising the main process.</p>
        <div class="project-links" aria-label="Orbit links">
          <a class="project-link-icon" href="{{ '/paper/orbit-osdi22.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/OrderLab/orbit" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__icon"><i class="fas fa-memory" aria-hidden="true"></i></div>
        <p class="project-page-card__tag">EuroSys 2021</p>
        <h3>Arthas</h3>
        <p>System support for understanding and dealing with hard faults in persistent memory systems.</p>
        <div class="project-links" aria-label="Arthas links">
          <a class="project-link-icon" href="{{ '/paper/arthas-eurosys21.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/OrderLab/Arthas" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__icon"><i class="fas fa-cogs" aria-hidden="true"></i></div>
        <p class="project-page-card__tag">OSDI 2020</p>
        <h3>Violet</h3>
        <p>Automated reasoning for detecting specious configuration in large systems with symbolic execution.</p>
        <div class="project-links" aria-label="Violet links">
          <a class="project-link-icon" href="{{ '/paper/violet-osdi20.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/OrderLab/violet" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__icon"><i class="fas fa-search" aria-hidden="true"></i></div>
        <p class="project-page-card__tag">NSDI 2020</p>
        <h3>OmegaGen</h3>
        <p>Techniques for understanding, detecting, and localizing partial failures in large system software.</p>
        <div class="project-links" aria-label="OmegaGen links">
          <a class="project-link-icon" href="{{ '/paper/omegagen-nsdi20.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__image">
          <img src="{{ '/assets/img/project/leaseos.png' | relative_url }}" alt="LeaseOS">
        </div>
        <p class="project-page-card__tag">ASPLOS 2019</p>
        <h3>LeaseOS</h3>
        <p>Lease-based mobile OS resource management that mitigates app energy bugs while preserving useful work.</p>
        <div class="project-links" aria-label="LeaseOS links">
          <a class="project-link-icon" href="{{ '/paper/leaseos-asplos19.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/OrderLab/leaseos_frameworks_base" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__image">
          <img src="{{ '/assets/img/project/panorama.png' | relative_url }}" alt="Panorama">
        </div>
        <p class="project-page-card__tag">OSDI 2018</p>
        <h3>Panorama</h3>
        <p>Program-analysis and instrumentation support for in situ observability, helping requesters detect gray failures in cloud systems.</p>
        <div class="project-links" aria-label="Panorama links">
          <a class="project-link-icon" href="{{ '/paper/panorama-osdi18.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://github.com/ryanphuang/panorama" target="_blank" rel="noopener" title="Software"><i class="fab fa-github" aria-hidden="true"></i><span>Software</span></a>
        </div>
      </article>

      <article class="project-mini-card">
        <div class="project-mini-card__image">
          <img src="{{ '/assets/img/project/defdroid.png' | relative_url }}" alt="DefDroid">
        </div>
        <p class="project-page-card__tag">MobiSys 2016</p>
        <h3>DefDroid</h3>
        <p>A defensive mobile OS approach that reacts to disruptive app behavior at runtime without compromising app usability.</p>
        <div class="project-links" aria-label="DefDroid links">
          <a class="project-link-icon" href="{{ '/paper/defdroid-mobisys16.pdf' | relative_url }}" target="_blank" rel="noopener" title="Paper"><i class="fas fa-file-alt" aria-hidden="true"></i><span>Paper</span></a>
          <a class="project-link-icon" href="https://defdroid.github.io" target="_blank" rel="noopener" title="Project page"><i class="fas fa-external-link-alt" aria-hidden="true"></i><span>Project</span></a>
        </div>
      </article>
    </div>
  </div>
</section>