Re: Test request for Stats collector performance improvement

Qingqing Zhou <zhouqq@cs.toronto.edu>

From: "Qingqing Zhou" <zhouqq@cs.toronto.edu>
To: pgsql-hackers@postgresql.org
Date: 2006-06-16T01:34:12Z
Lists: pgsql-hackers, pgsql-performance
"Tom Lane" <tgl@sss.pgh.pa.us> wrote
>
> Hm?  I don't see any improvement there:
>

I was referening this sentence, though I am not sure why that's the
expectation:
>
> "Bruce Momjian" <pgman@candle.pha.pa.us> wrote
> If the patch worked, the first and third times will be similar, and
> the second time will be high.
>

-- After patch --

real    0m1.275s
user    0m0.097s
sys     0m0.160s

real    0m4.063s
user    0m0.663s
sys     0m0.377s

real    0m1.259s
user    0m0.073s
sys     0m0.160s