[dpdk-dev] [Bug 826] red_autotest random failures

[Liguzinski, WojciechX]

Hi,

Unfortunately, I haven’t been able to move the investigation much further.
I have been running those tests on machines with higher amount of RAM than 4GB, but with hugepages set there to 1GB and using the script provided by Lincoln.
For several runs red_autotest tests didn’t fail even once, not giving any clue what might be the cause of what’s happening on CI.

+Adding Marcin Danilewicz
To let you know, Marcin Danilewicz will be taking over my tasks, so for any further aspects please include or direct messages to him.

Best Regards,
Wojciech


From: Liguzinski, WojciechX <wojciechx.liguzinski at intel.com>
Sent: Tuesday, November 30, 2021 8:51 AM
To: Brandon Lo <blo at iol.unh.edu>
Cc: Lincoln Lavoie <lylavoie at iol.unh.edu>; Dumitrescu, Cristian <cristian.dumitrescu at intel.com>; Thomas Monjalon <thomas at monjalon.net>; David Marchand <david.marchand at redhat.com>; Ajmera, Megha <megha.ajmera at intel.com>; Singh, Jasvinder <jasvinder.singh at intel.com>; dev <dev at dpdk.org>; Aaron Conole <aconole at redhat.com>; Yigit, Ferruh <ferruh.yigit at intel.com>; ci at dpdk.org; Zegota, AnnaX <annax.zegota at intel.com>
Subject: RE: [dpdk-dev] [Bug 826] red_autotest random failures

Ok, thanks Brandon for the tip :)
Let’s see if I can setup the machine with such configuration.

Cheers,
Wojciech

From: Brandon Lo <blo at iol.unh.edu<mailto:blo at iol.unh.edu>>
Sent: Monday, November 29, 2021 6:58 PM
To: Liguzinski, WojciechX <wojciechx.liguzinski at intel.com<mailto:wojciechx.liguzinski at intel.com>>
Cc: Lincoln Lavoie <lylavoie at iol.unh.edu<mailto:lylavoie at iol.unh.edu>>; Dumitrescu, Cristian <cristian.dumitrescu at intel.com<mailto:cristian.dumitrescu at intel.com>>; Thomas Monjalon <thomas at monjalon.net<mailto:thomas at monjalon.net>>; David Marchand <david.marchand at redhat.com<mailto:david.marchand at redhat.com>>; Ajmera, Megha <megha.ajmera at intel.com<mailto:megha.ajmera at intel.com>>; Singh, Jasvinder <jasvinder.singh at intel.com<mailto:jasvinder.singh at intel.com>>; dev <dev at dpdk.org<mailto:dev at dpdk.org>>; Aaron Conole <aconole at redhat.com<mailto:aconole at redhat.com>>; Yigit, Ferruh <ferruh.yigit at intel.com<mailto:ferruh.yigit at intel.com>>; ci at dpdk.org<mailto:ci at dpdk.org>; Zegota, AnnaX <annax.zegota at intel.com<mailto:annax.zegota at intel.com>>
Subject: Re: [dpdk-dev] [Bug 826] red_autotest random failures

On Wed, Nov 24, 2021 at 2:48 AM Liguzinski, WojciechX <wojciechx.liguzinski at intel.com<mailto:wojciechx.liguzinski at intel.com>> wrote:
Hi,

Thanks Lincoln, I will also have a try with such script.

Cheers,
Wojciech

Hello Wojciech,

I also recommend trying to run the test with around 4GB of RAM and 2GB of hugepages to see if it fails. That is roughly the number of resources we have per machine that is completely dedicated to unit tests. The amount of RAM available can sometimes increase depending on how many jobs are running per machine, but 4GB is the lowest it can go for the unit test job.

Thanks,
Brandon



--
Brandon Lo
UNH InterOperability Laboratory
21 Madbury Rd, Suite 100, Durham, NH 03824
blo at iol.unh.edu<mailto:blo at iol.unh.edu>
www.iol.unh.edu<http://www.iol.unh.edu>
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