SIEVE is simpler than LRU¶ Caching is a method of storing temporary data for quick access to keep the online world running smoothly. But with limited space comes a critical decision: what to keep and discard. This is where eviction algorithms come into play. Our team recently designed a new cache eviction algorithm called SIEVE: it is very effective and simple with just one queue. Website Paper Up

Kexec is a system call that enables you to load and boot into another kernel from the currently running kernel. This is useful for kernel developers or other people who need to reboot very quickly without waiting for the whole BIOS boot process to finish. Note that kexec may not work correctly for you due to devices not fully re-initializing when using this method, however this is rarely the case.

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Note: This post stirred up some interesting discussions on HackerNews and Lobste.rs. SQLite stores data in binary. If you run cat mydb.sqlite, you'll see a bunch of gibberish that doesn't resemble structured data at all. If you want to track changes and updates to a database using Git, you won't be able to see full diffs by default. You'll see that the file has changed, but not what changed exactl

Lessons Learned from Twenty Years of Site Reliability Engineering Or, Eleven things we have learned as Site Reliability Engineers at Google Authors Adrienne Walcer, Kavita Guliani, Mikel Ward, Sunny Hsiao, and Vrai Stacey Contributors Ali Biber, Guy Nadler, Luisa Fearnside, Thomas Holdschick, and Trevor Mattson-Hamilton Foreword A lot can happen in twenty years, especially when you're busy growing