From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: Ard Biesheuvel <ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Roy Franz <roy.franz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Matt Fleming
<matt.fleming-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Leif Lindholm
<leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org"
<x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH] efi: stub: use a pool allocation for the cmdline
Date: Wed, 15 Apr 2015 10:55:06 +0100 [thread overview]
Message-ID: <20150415095506.GA4804@codeblueprint.co.uk> (raw)
In-Reply-To: <CAKv+Gu-KHpSWLKOgA7UW8C6L1-K3dOieNmF2=qq_t5N73u3Spg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
On Fri, 10 Apr, at 07:14:34PM, Ard Biesheuvel wrote:
>
> It is not such a big deal: the memory is reclaimed anyway, I was just
> trying to reduce the fragmentation a bit, and trying to avoid
> efi_xxx_alloc() which are substantially heavier than calling
> allocate_pool() or allocate_pages() directly.
Out of curiosity, do you have any runtime numbers to backup the claim
that allocate_*() is substantially more lightweight?
--
Matt Fleming, Intel Open Source Technology Center
WARNING: multiple messages have this Message-ID (diff)
From: matt@codeblueprint.co.uk (Matt Fleming)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] efi: stub: use a pool allocation for the cmdline
Date: Wed, 15 Apr 2015 10:55:06 +0100 [thread overview]
Message-ID: <20150415095506.GA4804@codeblueprint.co.uk> (raw)
In-Reply-To: <CAKv+Gu-KHpSWLKOgA7UW8C6L1-K3dOieNmF2=qq_t5N73u3Spg@mail.gmail.com>
On Fri, 10 Apr, at 07:14:34PM, Ard Biesheuvel wrote:
>
> It is not such a big deal: the memory is reclaimed anyway, I was just
> trying to reduce the fragmentation a bit, and trying to avoid
> efi_xxx_alloc() which are substantially heavier than calling
> allocate_pool() or allocate_pages() directly.
Out of curiosity, do you have any runtime numbers to backup the claim
that allocate_*() is substantially more lightweight?
--
Matt Fleming, Intel Open Source Technology Center
next prev parent reply other threads:[~2015-04-15 9:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-10 12:56 [PATCH] efi: stub: use a pool allocation for the cmdline Ard Biesheuvel
2015-04-10 12:56 ` Ard Biesheuvel
[not found] ` <1428670569-23089-1-git-send-email-ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-04-10 16:43 ` Roy Franz
2015-04-10 16:43 ` Roy Franz
[not found] ` <CAFECyb9efREE=BU5RGSbzAGHqi5CkivUuTf=BRdq02GvFqJaOA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-04-10 17:14 ` Ard Biesheuvel
2015-04-10 17:14 ` Ard Biesheuvel
[not found] ` <CAKv+Gu-KHpSWLKOgA7UW8C6L1-K3dOieNmF2=qq_t5N73u3Spg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-04-11 0:44 ` Roy Franz
2015-04-11 0:44 ` Roy Franz
2015-04-15 9:55 ` Matt Fleming [this message]
2015-04-15 9:55 ` Matt Fleming
[not found] ` <20150415095506.GA4804-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2015-04-15 10:01 ` Ard Biesheuvel
2015-04-15 10:01 ` Ard Biesheuvel
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