I'm trying to figure out the bottleneck in query performance. I'm runing ES
0.90 on a 8GB, 4core machine. The index size is 38GB with 10m documents in
On running a query, I'm getting 2k result in around 21 seconds. On firing
the same query again after clearing ES cache, I'm getting the results in
around 16 seconds. Disk IO is not the bottleneck as iostat is showing not
much activity. I've also tried with the index on the SSD, it gives result
in around 18 seconds. The maximum CPU utilization is also around 40% (of 4
What might be the reason of this?
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