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From: Olivier Matz <olivier.matz@6wind.com>
To: Venumadhav Josyula <vjosyula@gmail.com>
Cc: users@dpdk.org, dev@dpdk.org,
	Venumadhav Josyula <vjosyula@parallelwireless.com>
Subject: Re: [dpdk-dev] time taken for allocation of mempool.
Date: Wed, 13 Nov 2019 09:32:17 +0100	[thread overview]
Message-ID: <20191113083217.GC4841@platinum> (raw)
In-Reply-To: <CA+i0PGXsCscS9y8rKR2P8qfjHBunznv8SHX4=ESm0eCYrhP7ZA@mail.gmail.com>

Hi Venu,

On Wed, Nov 13, 2019 at 10:42:07AM +0530, Venumadhav Josyula wrote:
> Hi,
> 
> Few more points
> 
> Operating system  : Centos 7.6
> Logging mechanism : syslog
> 
> We have logged using syslog before the call and syslog after the call.
> 
> Thanks & Regards
> Venu
> 
> On Wed, 13 Nov 2019 at 10:37, Venumadhav Josyula <vjosyula@gmail.com> wrote:
> 
> > Hi ,
> > We are using 'rte_mempool_create' for allocation of flow memory. This has
> > been there for a while. We just migrated to dpdk-18.11 from dpdk-17.05. Now
> > here is problem statement
> >
> > Problem statement :
> > In new dpdk ( 18.11 ), the 'rte_mempool_create' take approximately ~4.4
> > sec for allocation compared to older dpdk (17.05). We have som 8-9 mempools
> > for our entire product. We do upfront allocation for all of them ( i.e.
> > when dpdk application is coming up). Our application is run to completion
> > model.
> >
> > Questions:-
> > i)  is that acceptable / has anybody seen such a thing ?
> > ii) What has changed between two dpdk versions ( 18.11 v/s 17.05 ) from
> > memory perspective ?

Could you give some more details about you use case? (hugepage size, number
of objects, object size, additional mempool flags, ...)

Did you manage to reproduce it in a small test example? We could do some
profiling to investigate.

Thanks for the feedback.
Olivier

  reply	other threads:[~2019-11-13  8:32 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-13  5:07 Venumadhav Josyula
2019-11-13  5:12 ` Venumadhav Josyula
2019-11-13  8:32   ` Olivier Matz [this message]
2019-11-13  9:11     ` Venumadhav Josyula
2019-11-13  9:30       ` Olivier Matz
2019-11-13  9:19 ` Bruce Richardson
2019-11-13 17:26   ` Burakov, Anatoly
2019-11-13 21:01     ` Venumadhav Josyula
2019-11-14  9:44       ` Burakov, Anatoly
2019-11-14  9:50         ` Venumadhav Josyula
2019-11-14  9:57           ` Burakov, Anatoly
2019-11-18 16:43             ` Venumadhav Josyula
2019-12-06 10:47               ` Burakov, Anatoly
2019-12-06 10:49                 ` Venumadhav Josyula
2019-11-14  8:12     ` Venumadhav Josyula
2019-11-14  9:49       ` Burakov, Anatoly
2019-11-14  9:53         ` Venumadhav Josyula
2019-11-18 16:45 ` Venumadhav Josyula

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