> > This patch affects header files. By any chance didn't you forget to > > run `make clean` after applying it? As we discussed above, when you > > change .h files autotools doesn't rebuild dependent .c files: > > > > Yes, actually i always compile using "make clean;make -j20; make > install" If you want i will run it again may be today or tomorrow and > post the result. > >
Most likely HASHHDR.mutex is not only bottleneck in your case so my patch doesn't help much. Unfortunately I don't have access to any POWER8 server so I can't investigate this issue. I suggest to use a gettimeofday trick I described in a first message of this thread. Its time consuming but it gives a clear understanding which code is keeping a lock. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
