Hello,
O.k. no one seemed interested in our 8.2 issues, so I thought i would
test on -head ;)
jd@scratch:/tmp/pg$ strace -c -p 3545
Process 3545 attached - interrupt to quit
Process 3545 detached
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------59.45 0.178412 3 70176 10128
poll22.68 0.068083 7 10294 rename12.05 0.036158 4 10294 open 2.98
0.008929 1 10294 close 1.68 0.005051 0 60040 recvfrom 0.65
0.001954 0 10294 setitimer 0.46 0.001386 0 20588 write 0.03
0.000090 0 10294 mmap 0.02 0.000065 0 10294 munmap 0.00 0.000000
0 10294 fstat 0.00 0.000000 0 1 brk 0.00 0.000000 0
10294 10128 rt_sigreturn 0.00 0.000000 0 10302 getppid
------ ----------- ----------- --------- --------- ----------------
100.00 0.300128 243459 20256 total
THe rename is being called 10294 times over 1 minute 56 seconds. This is
on the same machine and using the same test as mention here:
http://archives.postgresql.org/pgsql-hackers/2007-02/msg01902.php
Joshua D. Drake
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