From: | John R Pierce <pierce(at)hogranch(dot)com> |
---|---|
To: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: PostgrSQL server : CPU and Memory |
Date: | 2017-05-18 04:03:10 |
Message-ID: | 8cc6480c-199e-c37a-736b-4aece76630ec@hogranch.com |
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Lists: | pgsql-general pgsql-sql |
On 5/17/2017 8:50 PM, kaustubh kelkar wrote:
> I am a developer and I want to monitor metrics related to CPU and
> Memory of PostgreSQL server only using SQL queries.
postgres itself doesn't track that level of OS specific stuff.
>
> Do we have any system tables which can give us the data? I have found
> this one
> https://aaronparecki.com/2015/02/19/8/monitoring-cpu-memory-usage-from-postgres
>
> but dont know whether it is exactly the same what I need.
thats reading the /proc/.... stuff available on Linux systems via SQL,
its the same stuff OS level tools like ps, top, free use... it won't
work on non-Linux systems, even other Unix systems like BSD don't have
the same /proc stuff, and other OS's like Windows don't have /proc at all.
if you don't know whether that's what you need, I'm not sure how we
could know what you need.
--
john r pierce, recycling bits in santa cruz
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