THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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There was 1Gb direct memory allocated and filled with random data. It was logically split into 8 partitions and save into different files. There were different blocks used (16kb, 32 kb, ...16Mb) to run in different number of threads (1, 2, 4, 8). The overall time required to fully write data to disk was measured. For each point there were 20 runs executed and average taken. The following diagram was obtained.
Some conclusions for this run: