maria-discuss team mailing list archive

[Peter Laursen <peter_laursen@xxxxxxxxxx>]

I should have thought about compressing, obviously. That makes it 27.4 MB.
:-)
Now shared with vvaintroub@xxxxxxxxx. Do I need to do anything else? You
probably had a mail with access details?

On Sat, Jan 20, 2018 at 5:32 PM, Vladislav Vaintroub <vvaintroub@xxxxxxxxx>
wrote:

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> Oh ok, so it is a “maxi” dump.  But stull ,when you just start the
> service, the most of the memory allocated by the process  is zeroed , thus
> zipping the dmp should  I think make it much smaller.
>
> You can share via Google drive, sure.
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> *From: *Peter Laursen <peter_laursen@xxxxxxxxxx>
> *Sent: *Saturday, January 20, 2018 5:23 PM
> *To: *Vladislav Vaintroub <vvaintroub@xxxxxxxxx>
> *Cc: *Maria Discuss <maria-discuss@xxxxxxxxxxxxxxxxxxx>
> *Subject: *Re: [Maria-discuss] MariaDB 10.3.4 consumes extremely much
> CPUonWindows.
>
>
>
> It happens always and immediately when I start the 10.3.4 mysqld process
> (as a service with "net start .." or from Control Panel .. Administration
> .. Services).  I think one dump will do as it is esactly the same thing
> everytime.
>
>
>
> The dump is 4.6 GB. I just have to figure out how to transfer it!  Is a
> shared link to Google Drive OK (it is uploading now)?
>
>
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> On Sat, Jan 20, 2018 at 5:14 PM, Vladislav Vaintroub <vvaintroub@xxxxxxxxx>
> wrote:
>
> Hi Peter,
>
> Could you take a 2-3 different process dumps , when it happens?
>
> You do this by switching to “Detail” tab in Task manager, then mysqld.exe,
> rightclick, “Create dump”, and mysqld.DMP will be stored in temp directory.
>
>
>
> Could you then attach  minidumps  somewhere (ideally to a new bug in our
> JIRA https://jira.mariadb.org/secure/Dashboard.jspa,  but in case you do
> not have an account you can also send them to me so I can create a
> bugreport on your behalf)
>
>
>
> Thanks!
>
>
>
> *From: *Peter Laursen <peter_laursen@xxxxxxxxxx>
> *Sent: *Saturday, January 20, 2018 2:51 PM
> *To: *Maria Discuss <maria-discuss@xxxxxxxxxxxxxxxxxxx>
> *Subject: *[Maria-discuss] MariaDB 10.3.4 consumes extremely much CPU
> onWindows.
>
>
>
> On a 4-core (4 physical, 8 logical cores), 3.5 Ghz box, MariaDB 10.3.4
> consumes typically 35-40% of available CPU even when completely idle
> according to Task Manager. Please see image.
>
>
>
> I cannot tell if previous 10.3 versions also did, as I don't have 10.3
> running constantly in the backgorund. I just observed this now.  This does
> not happen with MariaDB 10.1, MariaDB 10.2, MySQL 5.6, MySQL 5.7 and MySQL
> 8.0 (all those I have starting with Windows on this box), where the
> CPU-load is neglible unless the server is "doing real work".
>
>
>
> As a result, the CPU clock frequency is always highest possible 3.5 Ghz
> (this CPU model is a 4th generation Intel with the option to scale down CPU
> frequency to around 40-50% of max. when there is no need for more) when
> MariaDB 10.3.4 is running.
>
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>
> -- Peter
>
> -- Webyog
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