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From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: Thomas Monjalon <thomas@monjalon.net>,
	Mohammad Masumi <mmasumi@gmail.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 10:14:26 +0000
Message-ID: <PH0PR11MB509303BFA63B5C9EF0888A8BF7A99@PH0PR11MB5093.namprd11.prod.outlook.com> (raw)
In-Reply-To: <1728391.6pqWS55XY0@thomas>

> -----Original Message-----
> From: Thomas Monjalon <thomas@monjalon.net>
> Sent: Wednesday, September 29, 2021 10:59 AM
> To: Mohammad Masumi <mmasumi@gmail.com>
> Cc: users@dpdk.org; Burakov, Anatoly <anatoly.burakov@intel.com>;
> dmitry.kozliuk@gmail.com; Richardson, Bruce
> <bruce.richardson@intel.com>; stephen@networkplumber.org
> Subject: Re: [dpdk-users] Memory allocation limits
> 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


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_MEM_MB_PER_LIST 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.


  reply	other threads:[~2021-09-29 10:14 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 [this message]
2021-09-29 11:12     ` Thomas Monjalon
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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