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From: Minchan Kim <minchan@kernel.org>
To: Joonsoo Kim <js1304@gmail.com>
Cc: Weijie Yang <weijie.yang.kh@gmail.com>,
	Weijie Yang <weijie.yang@samsung.com>,
	Davidlohr Bueso <davidlohr@hp.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Seth Jennings <sjennings@variantweb.net>,
	Nitin Gupta <ngupta@vflare.org>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Bob Liu <bob.liu@oracle.com>, Dan Streetman <ddstreet@ieee.org>,
	Heesub Shin <heesub.shin@samsung.com>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Linux-MM <linux-mm@kvack.org>
Subject: Re: [PATCH] zram: remove global tb_lock by using lock-free CAS
Date: Thu, 8 May 2014 15:24:18 +0900	[thread overview]
Message-ID: <20140508062418.GF5282@bbox> (raw)
In-Reply-To: <CAAmzW4Pn2VUEnQ8FyOaBffqfUiHt6ocLEEvyaJrSKmTjaNp_wQ@mail.gmail.com>

On Wed, May 07, 2014 at 11:52:59PM +0900, Joonsoo Kim wrote:
> >> Most popular use of zram is the in-memory swap for small embedded system
> >> so I don't want to increase memory footprint without good reason although
> >> it makes synthetic benchmark. Alhought it's 1M for 1G, it isn't small if we
> >> consider compression ratio and real free memory after boot
> 
> We can use bit spin lock and this would not increase memory footprint for 32 bit
> platform.

Sounds like a idea.
Weijie, Do you mind testing with bit spin lock?

> 
> Thanks.
> 
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
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-- 
Kind regards,
Minchan Kim

  reply	other threads:[~2014-05-08  6:22 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-05  4:01 [PATCH] zram: remove global tb_lock by using lock-free CAS Weijie Yang
2014-05-05 10:32 ` Sergey Senozhatsky
2014-05-05 15:20 ` Seth Jennings
2014-05-05 18:00   ` Davidlohr Bueso
2014-05-05 20:46     ` Andrew Morton
2014-05-05 22:22       ` Davidlohr Bueso
2014-05-07  7:51         ` Weijie Yang
2014-05-07  8:57           ` Minchan Kim
2014-05-07  9:16             ` Weijie Yang
2014-05-07 14:52               ` Joonsoo Kim
2014-05-08  6:24                 ` Minchan Kim [this message]
2014-05-10  6:10                   ` Weijie Yang
2014-05-12  5:15                     ` Minchan Kim
2014-05-12 14:49                       ` Davidlohr Bueso
2014-05-13  0:03                         ` Minchan Kim

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