Hacker News Top Stories with Summaries (July 28, 2023)
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<h1> Hacker News Top Stories</h1>
<p>Here are the top stories from Hacker News with summaries for July 28, 2023 :</p>
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Faster filesystem access with Directfs
Summary: Directfs is now the default in runsc, providing gVisor's Sentry with secure direct access to the container filesystem and avoiding expensive round trips to the filesystem gofer. This feature significantly improves performance for certain workloads, as it leverages existing filesystem isolation mechanisms in Linux without compromising security. The stat(2) syscall is more than 2x faster, and real-world benchmarks show a 12% reduction in absolute time to run workloads and a 17% reduction in Ruby load time.
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Building and operating a pretty big storage system called S3
Summary: Andy Warfield, VP and Distinguished Engineer at S3, shares insights on building and operating Amazon's Simple Storage Service (S3) in a guest post. S3, a large-scale storage system, comprises hundreds of microservices and is built using millions of hard disks. Warfield discusses the challenges of managing I/O demand across the vast number of hard drives and the importance of data placement for performance and durability. The article highlights the continuous evolution of S3 as a living, breathing organism that includes software, hardware, and people.