Concurrent Reads on leveldb.

[Deepesh J]

I am running leveldb in multithreaded server. As the concurrent reads on leveldb increases the response time increase. Is the read sequential and locked per read?

I am iterating the DB  on a 32 core server. If the 1 request which has 5000 reads takes 100 ms.  For concurrent 10 requests take 1 second. 

 for(;leveldb_iter_valid(itr);

                        leveldb_iter_next(itr))

                {

                        key = (uint32*)leveldb_iter_key(itr,&key_len);