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From: Thomas Monjalon <thomas@monjalon.net>
To: Mohammad Masumi <mmasumi@gmail.com>,
	"Burakov, Anatoly" <anatoly.burakov@intel.com>
Cc: "users@dpdk.org" <users@dpdk.org>,
	"dmitry.kozliuk@gmail.com" <dmitry.kozliuk@gmail.com>,
	"Richardson, Bruce" <bruce.richardson@intel.com>,
	"stephen@networkplumber.org" <stephen@networkplumber.org>
Subject: Re: [dpdk-users] Memory allocation limits
Date: Wed, 29 Sep 2021 13:12:03 +0200
Message-ID: <1758092.NzVlmGAOTI@thomas> (raw)
In-Reply-To: <PH0PR11MB509303BFA63B5C9EF0888A8BF7A99@PH0PR11MB5093.namprd11.prod.outlook.com>

29/09/2021 12:14, Burakov, Anatoly:
> From: Thomas Monjalon <thomas@monjalon.net>
> > 26/09/2021 17:52, Mohammad Masumi:
> > > Hi
> > >
> > > I have HP server with 768GB memory 384GB in each Numa but I can't
> > > allocate more than 64GB by rte_malloc by changing some parameters in
> > > rte_config.h it increased to 128GB How to increase heap size?
> > 
> > adding people Cc to help
> > 
> 
> Hi,
> 
> This is intentional. In order to increase the amount of contiguous allocation possible to perform in DPDK, you need to adjust the following values in rte_config.h:
> 
> #define RTE_MAX_MEMSEG_PER_LIST 8192
> #define RTE_MAX_MEM_MB_PER_LIST 32768
> #define RTE_MAX_MEMSEG_PER_TYPE 32768
> #define RTE_MAX_MEM_MB_PER_TYPE 65536
> 
> I do not recommend arbitrarily changing them as this is untested, but increasing them proportionally (e.g. multiply all of them by 2 or 4) should not break anything.

It looks to be something to add in docs, right?



  reply	other threads:[~2021-09-29 11:12 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-26 15:52 Mohammad Masumi
2021-09-29  9:58 ` Thomas Monjalon
2021-09-29 10:14   ` Burakov, Anatoly
2021-09-29 11:12     ` Thomas Monjalon [this message]
2021-09-29 12:43       ` Burakov, Anatoly
2021-09-29 12:55         ` Thomas Monjalon
2022-04-01 20:43 Dave Sclarsky
2022-04-01 21:42 Dave Sclarsky

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