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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hello Bruce, Thank a lot for your constant support in resolving this query. Best Regards, Avijit Pandey Cloud SME | VoerEirAB +919598570190 From: Bruce Richardson Date: Tuesday, 2 April 2024 at 14:43 To: Avijit Pandey Cc: dev@dpdk.org Subject: Re: Error in rte_eal_init() when multiple PODs over single node of= K8 cluster On Mon, Apr 01, 2024 at 07:38:10AM +0000, Avijit Pandey wrote: > Hello Bruce, > > > Thank you for your mail! > > > I have attached the complete log that we observed. > > > Upon your suggestion, we experimented with the --in-memory option and > it worked! Since this option enables both --no-shconf and > --huge-unlink. We also tried each option separately. The test ran fine > with the --no-shconf option, but it failed when only the --huge-unlink > option was added. > > Now when --no-shconf option also worked, we also need some > understanding whether it will impact multi-queue performance and if > there are any other costs associated with using this flag. > The no-shconf should have no performance impacts, the flag only adjusts whether the basic DPDK configuration information (generally only used at init time), giving details of hugepage mappings etc, is stored in shared memory or in memory local to the process. Using the former allows sharing among multiple processes, but could lead to name conflicts between processes unless --file-prefix EAL argument is also used. Using the latter, local memory, disables multi-process support, but is probably safer and easier if MP support is unnecessary. /Bruce --_000_AS8PR02MB6837908CA7B4563EA16B8E47CC002AS8PR02MB6837eurp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hello Bruce,

 

Thank a lot for your constant support in resolving this query.=

 

 

 

Best Regards,

Avijit Pandey
Cloud SME | VoerEirAB
+919598570190

From: Bruce Richardson &l= t;bruce.richardson@intel.com>
Date: Tuesday, 2 April 2024 at 14:43
To: Avijit Pandey <Avijit@voereir.com>
Cc: dev@dpdk.org <dev@dpdk.org>
Subject: Re: Error in rte_eal_init() when multiple PODs over single = node of K8 cluster

On Mon, Apr 01, 202= 4 at 07:38:10AM +0000, Avijit  Pandey wrote:
>    Hello Bruce,
>
>
>    Thank you for your mail!
>
>
>    I have attached the complete log that we observed. >
>
>    Upon your suggestion, we experimented with the --in-= memory option and
>    it worked!  Since this option enables both --no= -shconf and
>    --huge-unlink. We also tried each option separately.= The test ran fine
>    with the --no-shconf option, but it failed when only= the --huge-unlink
>    option was added.
>
>    Now when --no-shconf option also worked, we also nee= d some
>    understanding whether it will impact multi-queue per= formance and if
>    there are any other costs associated with using this= flag.
>
The no-shconf should have no performance impacts, the flag only adjusts
whether the basic DPDK configuration information (generally only used at init time), giving details of hugepage mappings etc, is stored in shared memory or in memory local to the process. Using the former allows sharing among multiple processes, but could lead to name conflicts between
processes unless --file-prefix EAL argument is also used. Using the latter,=
local memory, disables multi-process support, but is probably safer and
easier if MP support is unnecessary.

/Bruce

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