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Posted to user@guacamole.apache.org by Sean Hulbert <sh...@securitycentric.net.INVALID> on 2022/09/13 17:07:28 UTC
High memory usage on idle server
Hello
I am running Guacamole 1.4.0 (Ubuntu 20.04 TLS) with MySQL and MFA, we have
12G memory allocated to the server and its peaking 11G in usage when there
are no connections.
What is interesting, our other servers we have allocated 64G ram and on idle
they consume 10G-12G; any thoughts on why these processes are such pigs?
Here is a TOP Image
Re: High memory usage on idle server
Posted by Lee Doughty <le...@virginiacyberrange.org>.
Sean,
To restate what Philip said:
"Linux uses available Memory as file cache"
You are misunderstanding the buff/cache item and assuming there's a problem
-- this is an very common (but also incorrect) assumption
Please read more on the topic here: https://www.linuxatemyram.com/
Linux is doing smart things to make the server operate faster, this does
not have a negative impact on your system, in fact, it is speeding up
access times for files since they can be read from memory instead of
pulling data from disk/NFS.
-Lee
On Tue, Sep 13, 2022, 1:21 PM Sean Hulbert
<sh...@securitycentric.net.invalid> wrote:
>
>
> Thanks for a quick reply Philipp
>
>
>
> Looks like there is 8.8G free, however 7.7G in idle seems a bit excessive,
> unless I am reading this wrong.
>
>
>
>
>
> *From:* Philipp Zeitschel [mailto:philipp@zeitschel.net.INVALID]
> *Sent:* Tuesday, September 13, 2022 10:11 AM
> *To:* user@guacamole.apache.org
> *Subject:* Re: High memory usage on idle server
>
>
>
> Hi,
>
>
>
> Linux uses available Memory as file cache
>
> Look at „available“
>
> There you can see that you‘ve got more than 9GB free Memory
>
>
>
> Regards
>
>
>
> Philipp
>
>
>
> Am 13.09.2022 um 19:07 schrieb Sean Hulbert <
> shulbert@securitycentric.net.invalid>:
>
>
>
>
>
> Hello
>
>
>
> I am running Guacamole 1.4.0 (Ubuntu 20.04 TLS) with MySQL and MFA, we
> have 12G memory allocated to the server and its peaking 11G in usage when
> there are no connections.
>
> What is interesting, our other servers we have allocated 64G ram and on
> idle they consume 10G-12G; any thoughts on why these processes are such
> pigs?
>
>
>
> Here is a TOP Image
>
> [image: image001.png]
>
>
>
>
RE: High memory usage on idle server
Posted by Sean Hulbert <sh...@securitycentric.net.INVALID>.
Thanks for a quick reply Philipp
Looks like there is 8.8G free, however 7.7G in idle seems a bit excessive, unless I am reading this wrong.
From: Philipp Zeitschel [mailto:philipp@zeitschel.net.INVALID]
Sent: Tuesday, September 13, 2022 10:11 AM
To: user@guacamole.apache.org
Subject: Re: High memory usage on idle server
Hi,
Linux uses available Memory as file cache
Look at „available“
There you can see that you‘ve got more than 9GB free Memory
Regards
Philipp
Am 13.09.2022 um 19:07 schrieb Sean Hulbert <shulbert@securitycentric.net.invalid <ma...@securitycentric.net.invalid> >:
Hello
I am running Guacamole 1.4.0 (Ubuntu 20.04 TLS) with MySQL and MFA, we have 12G memory allocated to the server and its peaking 11G in usage when there are no connections.
What is interesting, our other servers we have allocated 64G ram and on idle they consume 10G-12G; any thoughts on why these processes are such pigs?
Here is a TOP Image
Re: High memory usage on idle server
Posted by Philipp Zeitschel <ph...@zeitschel.net.INVALID>.
Hi,
Linux uses available Memory as file cache
Look at „available“
There you can see that you‘ve got more than 9GB free Memory
Regards
Philipp
> Am 13.09.2022 um 19:07 schrieb Sean Hulbert <sh...@securitycentric.net.invalid>:
>
>
>
> Hello
>
> I am running Guacamole 1.4.0 (Ubuntu 20.04 TLS) with MySQL and MFA, we have 12G memory allocated to the server and its peaking 11G in usage when there are no connections.
> What is interesting, our other servers we have allocated 64G ram and on idle they consume 10G-12G; any thoughts on why these processes are such pigs?
>
> Here is a TOP Image
>
>