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apurvamehta
on Oct 9, 2013
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Optimizing Linux Memory Management for Low-latency...
That would be true if we were using C++. Unfortunately, all our code is in Scala and we use Java NIO libraries to memory map our files. AFAIK, they don't give us the option on using these POSIX calls.
pquerna
on Oct 9, 2013
[–]
Cassandra binds to posix_fadvise to do exactly this when writing out new SSTables:
https://github.com/apache/cassandra/blob/trunk/src/java/org/...
apurvamehta
on Oct 9, 2013
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Wow.. that's great to know. We will definitely investigate this approach. Thanks for sharing! :)
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