Re: Lock Wait Statistics (next commitfest)
От | Mark Kirkwood |
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Тема | Re: Lock Wait Statistics (next commitfest) |
Дата | |
Msg-id | 4A603896.7010100@paradise.net.nz обсуждение исходный текст |
Ответ на | Re: Lock Wait Statistics (next commitfest) (Jaime Casanova <jcasanov@systemguards.com.ec>) |
Ответы |
Re: Lock Wait Statistics (next commitfest)
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Список | pgsql-hackers |
Jaime Casanova wrote: > > i did it myself, i think this is something we need... > > this compile and seems to work... something i was wondering is that > having the total time of lock waits is not very accurate because we > can have 9 lock waits awaiting 1 sec each and one awaiting for 1 > minute... simply sum them all will give a bad statistic or am i > missing something? > > Thank you Jaime - looks good. I seem to have been asleep at the wheel and missed *both* of your emails until now, belated apologies for that - especially the first one :-( With respect to the sum of wait times being not very granular, yes - quite true. I was thinking it is useful to be able to answer the question 'where is my wait time being spent' - but it hides cases like the one you mention. What would you like to see? would max and min wait times be a useful addition, or are you thinking along different lines? Cheers Mark
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