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What happened to disk performance in 2.6.39What happened to disk performance in 2.6.39Posted Feb 4, 2012 20:49 UTC (Sat) by giraffedata (subscriber, #1954)In reply to: What happened to disk performance in 2.6.39 by petkan Parent article: What happened to disk performance in 2.6.39 Actually, I wonder what the patch author intended to accomplish (and that his testing presumably demonstrated he did). The article mentions larger less scattered I/Os, but in a situation where the queue tends to be empty, I can't see where that would accomplish anything. When I look at this change, I just see a frontal assault on doing stuff in parallel with the I/O turnaround time.
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