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From Mukil Kesavan <>
Subject Tuning out-of-core for SSDs
Date Sat, 15 Nov 2014 18:06:38 GMT

I've been testing giraph out-of-core functionality with the pagerank
example on HDD and SSD storage. In the large majority of my experiments,
there is almost no difference (within 2 to 3%) in the benchmark execution
time between storing partitions and messages in either of the two mediums.

So I'm wondering if there are any tunables that I can customize to extract
the maximum out-of-core performance on SSDs. I can also take a shot at
making code modifications if someone familiar with the out-of-core
implementation has any suggestions.


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