On 08/04/2008, at 23:13, 李银松 wrote:
I'm testing solr search performance using LoadRunner
the index contains 5M+ docs , about 10.7GB large.
CPU:3.2GHz*2 RAM16GB
The result si dispirited
max:19s min 1.5s avg 11.7s
But the QTime is around 1s
(simple query without facet or mlt,just fetch the top 50 IDs)
So it seems that XMLWriter is the bottleneck
Am I right? Or is there anything i can do to improve the performance?


Are you limiting the results? Because if you are not writing even a tiny portion of those 10gb can take 11secs for sure. If you can please see the diference from writing xml to writing json data.

--
Leonardo Santagada




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