Re: [HACKERS] Overhead for stats_command_string et al, take
От | Bruce Momjian |
---|---|
Тема | Re: [HACKERS] Overhead for stats_command_string et al, take |
Дата | |
Msg-id | 200606271907.k5RJ75I10301@momjian.us обсуждение исходный текст |
Ответ на | Re: [HACKERS] Overhead for stats_command_string et al, take 2 (Bruce Momjian <bruce@momjian.us>) |
Список | pgsql-patches |
Applied. --------------------------------------------------------------------------- Bruce Momjian wrote: > Tom Lane wrote: > > Bruce Momjian <bruce@momjian.us> writes: > > > Seeing stats_command_string with almost zero overhead is great news! > > > Should we remove that setting and just have it enabled all > > > the time? > > > > If you don't need it, you shouldn't have to pay any overhead for it, > > I think. One could make an argument now for having stats_command_string > > default to ON, though. > > The attached patch makes stats_command_string default to 'on', and > updates the documentation. > > > Something that might also be interesting is an option to suppress > > per-command ps_status reporting. On machines where updating ps status > > takes a kernel call, there's now a pretty good argument why you might > > want to turn that off and rely on pg_stat_activity instead. > > OK, can I get a timing report from someone with the title on/off that > shows a difference? > > -- > Bruce Momjian bruce@momjian.us > EnterpriseDB http://www.enterprisedb.com > > + If your life is a hard drive, Christ can be your backup. + > > ---------------------------(end of broadcast)--------------------------- > TIP 1: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly -- Bruce Momjian bruce@momjian.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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