Tom Lane wrote: > I wrote: > > IIRC, newer BSDen use a kernel call for this, so you should be able to > > measure it on your own machine. Just tweak ps_status.c to force it to > > select PS_USE_NONE instead of PS_USE_SETPROCTITLE to generate a > > comparison case. I'll try it on my old HPUX box too. > > On HPUX, I get a median time of 5.59 sec for CVS HEAD vs 5.36 sec with > ps_status diked out, for the test case of 10000 "SELECT 1;" as separate > transactions, assert-disabled build. So, almost 10% overhead. Given > that the transactions can't get any more trivial than this, that's about > a worst-case number. Not sure if it's worth worrying about or not. > However Kris Kennaway's report a couple weeks ago suggested things might > be worse on BSD.
Yep, I see 8% here. I will add a patch to allow the ps display to be turned off. -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
