| From: | Nikolai Zhubr <n-a-zhubr(at)yandex(dot)ru> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, PG-General Mailing List <pgsql-general(at)postgresql(dot)org>, Craig Ringer <craig(dot)ringer(at)2ndquadrant(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Subject: | Re: Causeless CPU load waves in backend, on windows, 9.5.5 (EDB binary). |
| Date: | 2017-01-31 22:02:11 |
| Message-ID: | 58910963.4070501@yandex.ru |
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| Lists: | pgsql-general |
31.01.2017 19:51, Andres Freund:
[...]
>> Exactly same trouble with 9.4 (Specifically EDB 9.4.10-1 win32)
>
> That's good to know, less because of 519b0757, more because of the latch
> changes - but they also went in in 9.5...
>
>> Would it make sense to check some even older ones?
>
> Could you use process monitor or such to see what the process is doing
> while using a lot of CPU?
I'm not sure how to do this, especially considering that the process in
question is running as a service?
Now, some more input:
* 9.5.2 server running on linux x86_64 - unaffected! (What a relief! We
are moving to Centos soon anyway!)
* 9.4.4 server running on win7 32-bit - affected, same thing as on XP.
Thank you.
Nikolai
>
> Regards,
>
> Andres
>
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