: Yes I do computing the same DocSet. Should it be the problem? Is any way to solve it? : In general in each thread I ran the same query and add different Filter Query.
it's not neccessarily a problem, it's just that you may not get much benefit from prallelization if all of the worker threads are doing the same work simulteneously. but like i said: without knowing exactly what your threading code looks like, it's hard to guess what might be wrong (and even if i was looking right at your multithreaded code, it wouldn't neccessarily be obvious to me, my multi-threading knowledge is mediocre) and it's still not clear if you are testing on hardware that can actually take advantage of parallelization. -Hoss
