"Luis Alberto Amigo Navarro" <[EMAIL PROTECTED]> writes: > If i track a single backend during an 8 read-only queries parallel execution > these are the results( > System call summary: > Average Total > Name #Calls Time(ms) Time(ms) > ----------------------------------------- > semop 3803 0.20 774.03 > select 4 19.58 78.33 > recv 1 2.41 2.41 > brk 6 0.08 0.48 > close 1 0.14 0.14 > send 1 0.14 0.14 > semctl 1 0.05 0.05 > prctl 1 0.01 0.01 > exit 1 0.00 0.00
Considering that there are no read() or write() calls listed, and that 8 client queries would surely require at least one send() and one recv() apiece, I don't think I believe a word of those stats. Well, maybe the 1 exit() is correct ;-) regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org