From: Minchan Kim <minchan@kernel.org>
To: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Nitin Gupta <ngupta@vflare.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dan Magenheimer <dan.magenheimer@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 6/6] zsmalloc: make zsmalloc portable
Date: Thu, 26 Apr 2012 11:04:29 +0900 [thread overview]
Message-ID: <4F98AD2D.3070900@kernel.org> (raw)
In-Reply-To: <4F982862.4050302@linux.vnet.ibm.com>
On 04/26/2012 01:37 AM, Seth Jennings wrote:
> Hey Minchan,
>
> Thanks for the patches!
>
> On 04/25/2012 09:32 AM, Nitin Gupta wrote:
>> I think Seth was working on this improvement but not sure about the
>> current status. Seth?
>
> Yes, I looked at this option, and it is very clean and portable.
>
> Unfortunately, IIRC, with our rate of mapping/unmapping,
> flush_tlb_kernel_range() causes an IPI storm that effective
> stalls the machine.
>
> I'll apply your patch and try it out.
Seth, Thanks!
--
Kind regards,
Minchan Kim
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WARNING: multiple messages have this Message-ID (diff)
From: Minchan Kim <minchan@kernel.org>
To: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Nitin Gupta <ngupta@vflare.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dan Magenheimer <dan.magenheimer@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 6/6] zsmalloc: make zsmalloc portable
Date: Thu, 26 Apr 2012 11:04:29 +0900 [thread overview]
Message-ID: <4F98AD2D.3070900@kernel.org> (raw)
In-Reply-To: <4F982862.4050302@linux.vnet.ibm.com>
On 04/26/2012 01:37 AM, Seth Jennings wrote:
> Hey Minchan,
>
> Thanks for the patches!
>
> On 04/25/2012 09:32 AM, Nitin Gupta wrote:
>> I think Seth was working on this improvement but not sure about the
>> current status. Seth?
>
> Yes, I looked at this option, and it is very clean and portable.
>
> Unfortunately, IIRC, with our rate of mapping/unmapping,
> flush_tlb_kernel_range() causes an IPI storm that effective
> stalls the machine.
>
> I'll apply your patch and try it out.
Seth, Thanks!
--
Kind regards,
Minchan Kim
next prev parent reply other threads:[~2012-04-26 2:03 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-25 6:23 [PATCH 0/6] zsmalloc: clean up and fix arch dependency Minchan Kim
2012-04-25 6:23 ` Minchan Kim
2012-04-25 6:23 ` [PATCH 1/6] zsmalloc: use PageFlag macro instead of [set|test]_bit Minchan Kim
2012-04-25 6:23 ` Minchan Kim
2012-04-25 12:43 ` Nitin Gupta
2012-04-25 12:43 ` Nitin Gupta
2012-04-25 6:23 ` [PATCH 2/6] zsmalloc: remove unnecessary alignment Minchan Kim
2012-04-25 6:23 ` Minchan Kim
2012-04-25 12:53 ` Nitin Gupta
2012-04-25 12:53 ` Nitin Gupta
2012-04-26 1:42 ` Minchan Kim
2012-04-26 1:42 ` Minchan Kim
2012-05-03 5:16 ` Nitin Gupta
2012-05-03 5:16 ` Nitin Gupta
2012-04-25 6:23 ` [PATCH 3/6] zsmalloc: rename zspage_order with zspage_pages Minchan Kim
2012-04-25 6:23 ` Minchan Kim
2012-04-25 13:03 ` Nitin Gupta
2012-04-25 13:03 ` Nitin Gupta
2012-04-26 1:46 ` Minchan Kim
2012-04-26 1:46 ` Minchan Kim
2012-04-25 6:23 ` [PATCH 4/6] zsmalloc: add/fix function comment Minchan Kim
2012-04-25 6:23 ` Minchan Kim
2012-04-25 13:27 ` Nitin Gupta
2012-04-25 13:27 ` Nitin Gupta
2012-04-26 1:51 ` Minchan Kim
2012-04-26 1:51 ` Minchan Kim
2012-04-25 6:23 ` [PATCH 5/6] zsmalloc: remove unnecessary type casting Minchan Kim
2012-04-25 6:23 ` Minchan Kim
2012-04-25 13:35 ` Nitin Gupta
2012-04-25 13:35 ` Nitin Gupta
2012-04-25 17:56 ` Greg Kroah-Hartman
2012-04-25 17:56 ` Greg Kroah-Hartman
2012-04-25 18:13 ` Nitin Gupta
2012-04-25 18:13 ` Nitin Gupta
2012-04-26 1:58 ` Minchan Kim
2012-04-26 1:58 ` Minchan Kim
2012-04-25 6:23 ` [PATCH 6/6] zsmalloc: make zsmalloc portable Minchan Kim
2012-04-25 6:23 ` Minchan Kim
2012-04-25 14:32 ` Nitin Gupta
2012-04-25 14:32 ` Nitin Gupta
2012-04-25 15:40 ` Dan Magenheimer
2012-04-25 15:40 ` Dan Magenheimer
2012-04-26 2:03 ` Minchan Kim
2012-04-26 2:03 ` Minchan Kim
2012-04-26 5:07 ` Minchan Kim
2012-04-26 5:07 ` Minchan Kim
2012-04-30 16:24 ` Seth Jennings
2012-04-30 16:24 ` Seth Jennings
2012-04-25 16:37 ` Seth Jennings
2012-04-25 16:37 ` Seth Jennings
2012-04-26 2:04 ` Minchan Kim [this message]
2012-04-26 2:04 ` Minchan Kim
2012-05-07 15:14 ` Seth Jennings
2012-05-07 15:14 ` Seth Jennings
2012-05-08 0:46 ` Minchan Kim
2012-05-08 0:46 ` Minchan Kim
2012-04-26 2:11 ` Minchan Kim
2012-04-26 2:11 ` Minchan Kim
2012-04-25 12:41 ` [PATCH 0/6] zsmalloc: clean up and fix arch dependency Nitin Gupta
2012-04-25 12:41 ` Nitin Gupta
2012-04-26 1:20 ` Minchan Kim
2012-04-26 1:20 ` Minchan Kim
2012-04-25 18:14 ` Greg Kroah-Hartman
2012-04-25 18:14 ` Greg Kroah-Hartman
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