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From: Stephen Hemminger <stephen@networkplumber.org>
To: Don Wallwork <donw@xsightlabs.com>
Cc: dev@dpdk.org
Subject: Re: [RFC] eal: allow worker lcore stacks to be allocated from hugepage memory
Date: Tue, 26 Apr 2022 07:58:58 -0700	[thread overview]
Message-ID: <20220426075858.2c28f427@hermes.local> (raw)
In-Reply-To: <20220426122000.24743-1-donw@xsightlabs.com>

On Tue, 26 Apr 2022 08:19:59 -0400
Don Wallwork <donw@xsightlabs.com> wrote:

> Add support for using hugepages for worker lcore stack memory.  The
> intent is to improve performance by reducing stack memory related TLB
> misses and also by using memory local to the NUMA node of each lcore.
> 
> Platforms desiring to make use of this capability must enable the
> associated option flag and stack size settings in platform config
> files.
> ---
>  lib/eal/linux/eal.c | 39 +++++++++++++++++++++++++++++++++++++++
>  1 file changed, 39 insertions(+)
> 

Good idea but having a fixed size stack makes writing complex application
more difficult. Plus you lose the safety of guard pages.

  reply	other threads:[~2022-04-26 14:59 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-26 12:19 [RFC] eal: allow worker lcore stacks to be allocated from hugepage memory Don Wallwork
2022-04-26 14:58 ` Stephen Hemminger [this message]
2022-04-26 21:01   ` Don Wallwork
2022-04-26 21:21     ` Stephen Hemminger
2022-04-26 21:25       ` Don Wallwork
2022-04-27  8:17         ` Morten Brørup
2022-04-29 18:52           ` Don Wallwork
2022-04-29 19:03             ` Stephen Hemminger
2022-05-02 13:15               ` Don Wallwork
2022-04-30  7:55             ` Morten Brørup
2022-04-27  0:42 ` Honnappa Nagarahalli
2022-04-27 17:50   ` Don Wallwork
2022-04-27 19:09     ` Honnappa Nagarahalli
2022-04-29 20:00 ` [RFC v2] " Don Wallwork
2022-04-30  7:20   ` Morten Brørup

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