From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>,
Nitin Gupta <ngupta@vflare.org>,
Brian King <brking@linux.vnet.ibm.com>,
Konrad Wilk <konrad.wilk@oracle.com>,
linux-mm@kvack.org, devel@driverdev.osuosl.org,
linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org
Subject: Re: [PATCH 1/5] staging: zsmalloc: zsmalloc memory allocation library
Date: Wed, 08 Feb 2012 09:21:43 -0800 [thread overview]
Message-ID: <4F32AF27.8050401@linux.vnet.ibm.com> (raw)
In-Reply-To: <409797c4-a6e7-493d-9681-4166a9473ab8@default>
On 02/08/2012 09:15 AM, Dan Magenheimer wrote:
> The zsmalloc allocator can grab
> any random* page "A" with X unused bytes at the END of the page,
> and any random page "B" with Y unused bytes at the BEGINNING of the page
> and "coalesce" them to store any byte sequence with a length** Z
> not exceeding X+Y. Presumably this markedly increases
> the density of compressed-pages-stored-per-physical-page***.
Ahh, I did miss that. I assumed it was simply trying to tie two order-0
pages together. I _guess_ the vmap() comment stands, though.
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next prev parent reply other threads:[~2012-02-08 17:23 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-09 22:51 [PATCH 0/5] staging: zsmalloc: memory allocator for compressed pages Seth Jennings
2012-01-09 22:51 ` [PATCH 1/5] staging: zsmalloc: zsmalloc memory allocation library Seth Jennings
2012-01-20 22:12 ` Andrew Morton
2012-01-23 14:36 ` Seth Jennings
2012-01-23 18:57 ` Nitin Gupta
2012-01-23 19:40 ` Andrew Morton
2012-01-26 19:12 ` Dave Hansen
2012-02-06 17:26 ` Seth Jennings
2012-02-08 16:39 ` Dave Hansen
2012-02-08 17:15 ` Dan Magenheimer
2012-02-08 17:21 ` Dave Hansen [this message]
2012-02-08 17:53 ` Nitin Gupta
2012-02-08 18:28 ` Dave Hansen
2012-02-08 20:57 ` Nitin Gupta
2012-02-08 21:39 ` Dan Magenheimer
2012-02-08 23:07 ` Dave Hansen
2012-01-09 22:51 ` [PATCH 2/5] staging: add zsmalloc to Kconfig/Makefile Seth Jennings
2012-01-09 22:51 ` [PATCH 3/5] staging: zcache: replace xvmalloc with zsmalloc Seth Jennings
2012-02-09 1:13 ` Greg KH
2012-02-09 14:36 ` Seth Jennings
2012-02-09 14:55 ` Seth Jennings
2012-02-09 18:13 ` Greg KH
2012-02-09 18:28 ` Seth Jennings
2012-01-09 22:51 ` [PATCH 4/5] staging: zram: " Seth Jennings
2012-01-09 22:52 ` [PATCH 5/5] staging: zram: remove xvmalloc Seth Jennings
2012-01-09 23:09 ` [PATCH 0/5] staging: zsmalloc: memory allocator for compressed pages Greg KH
2012-01-09 23:26 ` Seth Jennings
2012-01-20 22:03 ` Andrew Morton
2012-01-23 14:27 ` Seth Jennings
[not found] <<1326149520-31720-1-git-send-email-sjenning@linux.vnet.ibm.com>
[not found] ` <<1326149520-31720-2-git-send-email-sjenning@linux.vnet.ibm.com>
2012-01-11 17:19 ` [PATCH 1/5] staging: zsmalloc: zsmalloc memory allocation library Dan Magenheimer
2012-01-11 17:45 ` Seth Jennings
2012-01-11 21:44 ` Dan Magenheimer
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