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by charcircuit
1552 days ago
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It looks like I was mistaken. They don't keep all of the documents in RAM, but I'm pretty sure they keep the search index (100 petabytes) in RAM. I'm struggling to find a source but I remember hearing it in a talk given by a Googler on YouTube. I also read somewhere that moving their whole index to RAM is how they brought their response times down from a couple of seconds to a couple hundred milliseconds. |
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