From: Rik van Riel <riel@redhat.com>
To: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Nitin Gupta <ngupta@vflare.org>, Minchan Kim <minchan@kernel.org>,
Konrad Wilk <konrad.wilk@oracle.com>,
Robert Jennings <rcj@linux.vnet.ibm.com>,
Jenifer Hopper <jhopper@us.ibm.com>, Mel Gorman <mgorman@suse.de>,
Johannes Weiner <jweiner@redhat.com>,
Larry Woodman <lwoodman@redhat.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Dave Hansen <dave@sr71.net>, Joe Perches <joe@perches.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Cody P Schafer <cody@linux.vnet.ibm.com>,
Hugh Dickens <hughd@google.com>,
Paul Mackerras <paulus@samba.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
devel@driverdev.osuosl.org
Subject: Re: [PATCHv11 3/4] zswap: add to mm/
Date: Wed, 15 May 2013 18:14:46 -0400 [thread overview]
Message-ID: <519408D6.10903@redhat.com> (raw)
In-Reply-To: <f0272a06-141a-4d33-9976-ee99467f3aa2@default>
On 05/14/2013 04:18 PM, Dan Magenheimer wrote:
> It's unfortunate that my proposed topic for LSFMM was pre-empted
> by the zsmalloc vs zbud discussion and zswap vs zcache, because
> I think the real challenge of zswap (or zcache) and the value to
> distros and end users requires us to get this right BEFORE users
> start filing bugs about performance weirdness. After which most
> users and distros will simply default to 0% (i.e. turn zswap off)
> because zswap unpredictably sometimes sucks.
I'm not sure we can get it right before people actually start
using it for real world setups, instead of just running benchmarks
on it.
The sooner we get the code out there, where users can play with
it (even if it is disabled by default and needs a sysfs or
sysctl config option to enable it), the sooner we will know how
well it works, and what needs to be changed.
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next prev parent reply other threads:[~2013-05-15 22:14 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <<1368448803-2089-1-git-send-email-sjenning@linux.vnet.ibm.com>
[not found] ` <<1368448803-2089-3-git-send-email-sjenning@linux.vnet.ibm.com>
2013-05-13 15:43 ` [PATCHv11 2/4] zbud: add to mm/ Dan Magenheimer
2013-05-13 20:59 ` Seth Jennings
2013-05-16 15:30 ` Rik van Riel
[not found] ` <<1368448803-2089-4-git-send-email-sjenning@linux.vnet.ibm.com>
2013-05-13 22:31 ` [PATCHv11 3/4] zswap: " Dan Magenheimer
2013-05-14 16:35 ` Seth Jennings
2013-05-14 20:18 ` Dan Magenheimer
2013-05-14 22:55 ` Seth Jennings
2013-05-15 17:09 ` Dan Magenheimer
2013-05-15 18:55 ` Konrad Rzeszutek Wilk
2013-05-15 19:35 ` Dan Magenheimer
2013-05-15 20:45 ` Rik van Riel
2013-05-15 21:36 ` Dan Magenheimer
2013-05-15 22:01 ` Rik van Riel
2013-05-15 20:09 ` Seth Jennings
2013-05-15 20:24 ` Dave Hansen
2013-05-15 20:55 ` Dan Magenheimer
2013-05-15 20:45 ` Konrad Rzeszutek Wilk
2013-05-15 20:52 ` Dan Magenheimer
2013-05-15 22:14 ` Rik van Riel [this message]
2013-05-16 16:45 ` Dan Magenheimer
2013-05-16 17:06 ` Rik van Riel
2013-05-13 12:39 [PATCHv11 0/4] zswap: compressed swap caching Seth Jennings
2013-05-13 12:40 ` [PATCHv11 1/4] debugfs: add get/set for atomic types Seth Jennings
2013-05-16 14:58 ` Rik van Riel
2013-05-13 12:40 ` [PATCHv11 2/4] zbud: add to mm/ Seth Jennings
2013-05-14 8:47 ` Bob Liu
2013-05-14 17:03 ` Seth Jennings
2013-05-16 15:30 ` Rik van Riel
2013-05-17 15:48 ` Mel Gorman
2013-05-19 20:52 ` Seth Jennings
2013-05-20 13:54 ` Mel Gorman
2013-05-20 15:42 ` Seth Jennings
2013-05-21 8:10 ` Mel Gorman
2013-05-23 2:00 ` Bob Liu
2013-05-23 9:52 ` Mel Gorman
2013-05-13 12:40 ` [PATCHv11 3/4] zswap: " Seth Jennings
2013-05-14 9:19 ` Bob Liu
2013-05-14 16:00 ` Seth Jennings
2013-05-14 16:37 ` Dan Magenheimer
2013-05-14 17:28 ` Seth Jennings
2013-05-14 20:54 ` Dan Magenheimer
2013-05-17 17:00 ` Mel Gorman
2013-05-16 17:16 ` Rik van Riel
2013-05-17 16:54 ` Mel Gorman
2013-05-19 23:33 ` Seth Jennings
2013-05-13 12:40 ` [PATCHv11 4/4] zswap: add documentation Seth Jennings
2013-05-16 17:06 ` Rik van Riel
2013-05-17 16:04 ` Mel Gorman
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