Re: A question on performance

2015-01-07 Thread Arvind Kalyan
Performance measurements must be made carefully. Have you performed any warmup? I recommend doing 10k calls just to let the dust settle including stuff like jit, before taking any kind if measurements. Also use mmapdirectory, if not already, to help with spikes in disk accesses. Also keep track

RE: A question on performance

2015-01-07 Thread Toke Eskildsen
rama44ster [rama44s...@gmail.com] wrote: [3 MUST clauses] > 50 = 16 ms > 75 = 52 ms > 90 = 121 ms > 95 = 262 ms > 99 = 76010 ms > 99.9 = 76037 ms > Is the latency expected to degrade when the number of docs is as high as > 480M? Try plotting response times as a function of hit count. My guess i