Re: MpxTestDaemon

From: MacGregor, Ian A. <"MacGregor,>
Date: Wed, 21 Oct 2020 17:10:06 +0000
Message-ID: <BYAPR07MB5160C57F33AE9CDB7B9D821DE21C0_at_BYAPR07MB5160.namprd07.prod.outlook.com>

A shot in the dark, MPX is often an abbreviation for multiplex, but can also mean "multi-processor extension". I wonder if it has something to so with the latter?

Ian A. MacGregor
SLAC IT
SLAC National Accelerator Laboratory

---

From: oracle-l-bounce_at_freelists.org <oracle-l-bounce_at_freelists.org> on behalf of Jared Still <jkstill_at_gmail.com> Sent: Tuesday, October 20, 2020 3:00 PM
To: Oracle-L Freelists <oracle-l_at_freelists.org> Subject: MpxTestDaemon

Dear list:

I am investigating a process 'MpxTestDaemon' on a Linux server (RedHat 6.9 as I recall).

This server is running Oracle 12.1, and has 1.5T of RAM.

It is a standalone server, not RAC.

There are some anomalous things occurring with this process.

For instance, at times pidstat reports impossible numbers of minflt/s (mem faults not requiring disk access) being performed: approx 1.85 * 10e18

Right now though all I am asking is this:

Does anyone know what this process is?

Neither Oracle nor the Google have anything helpful.

In Oracle's case, no references at all.

In the meantime, I shall see if I can find out what it is doing.

Thanks.

Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist Principal Consultant at Pythian
Oracle ACE Alumni
Pythian Blog http://www.pythian.com/blog/author/still/ Github: https://github.com/jkstill

--
http://www.freelists.org/webpage/oracle-l

Received on Wed Oct 21 2020 - 19:10:06 CEST