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From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Nitin Gupta <ngupta@vflare.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: Re: [PATCHv4 2/9] zram: Add recompression algorithm sysfs knob
Date: Thu, 3 Nov 2022 12:54:43 +0900	[thread overview]
Message-ID: <Y2M7g9fFWoa+MPh/@google.com> (raw)
In-Reply-To: <Y2Mv4l+V9iCv9EMg@google.com>

On (22/11/03 12:05), Sergey Senozhatsky wrote:
> [..]
> > Just open question(I might be too paranoid?)
> > 
> > I am thinking someone want to add third comp algorithm in future
> > to balance decompression and memory efficiency.
> > 
> > If it's not too crazy idea, let's think about the interface.
> > Maybe, could we make the recomp knobs works like list?
> > 
> > # A primary comp
> > echo "A" > /zram/comp_algo
> > 
> > # Multiple secondary comps
> > echo "B threshold" > /zram/add_recomp_algo
> > echo "C threshold" > /zram/add_recomp_algo
> > echo "D threshold" > /zram/add_recomp_algo

As a side note:
The way it's implemented currently is that comps is an array, so we
can store more comps there. I sort of was thinking that we probably
can have more than two algos at some point the in the future (hence
the MULTI_COMPRESS config option).

  reply	other threads:[~2022-11-03  3:55 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-18  4:55 [PATCHv4 0/9] zram: Support multiple compression streams Sergey Senozhatsky
2022-10-18  4:55 ` [PATCHv4 1/9] zram: Preparation for multi-zcomp support Sergey Senozhatsky
2022-11-02 20:13   ` Minchan Kim
2022-11-03  2:40     ` Sergey Senozhatsky
2022-10-18  4:55 ` [PATCHv4 2/9] zram: Add recompression algorithm sysfs knob Sergey Senozhatsky
2022-11-02 20:15   ` Minchan Kim
2022-11-03  3:05     ` Sergey Senozhatsky
2022-11-03  3:54       ` Sergey Senozhatsky [this message]
2022-11-03 17:10         ` Minchan Kim
2022-11-03  4:09       ` Sergey Senozhatsky
2022-11-03  5:36         ` Sergey Senozhatsky
2022-11-03 17:11         ` Minchan Kim
2022-11-03 16:34       ` Minchan Kim
2022-11-04  3:18         ` Sergey Senozhatsky
2022-11-04  4:53           ` Sergey Senozhatsky
2022-11-04 17:43             ` Minchan Kim
2022-11-04 23:41               ` Sergey Senozhatsky
2022-11-05  0:00                 ` Sergey Senozhatsky
2022-11-07 19:08                   ` Minchan Kim
2022-11-08  0:40                     ` Sergey Senozhatsky
2022-11-05  0:01                 ` Minchan Kim
2022-11-05  1:30                   ` Sergey Senozhatsky
2022-11-04 16:34           ` Minchan Kim
2022-11-04 23:25             ` Sergey Senozhatsky
2022-11-04 23:40               ` Minchan Kim
2022-11-04 23:44                 ` Sergey Senozhatsky
2022-11-05  0:02                   ` Minchan Kim
2022-10-18  4:55 ` [PATCHv4 3/9] zram: Factor out WB and non-WB zram read functions Sergey Senozhatsky
2022-11-02 20:20   ` Minchan Kim
2022-11-03  2:43     ` Sergey Senozhatsky
2022-10-18  4:55 ` [PATCHv4 4/9] zram: Introduce recompress sysfs knob Sergey Senozhatsky
2022-11-02 21:06   ` Minchan Kim
2022-11-03  3:25     ` Sergey Senozhatsky
2022-11-03  6:03       ` Sergey Senozhatsky
2022-11-03 17:00       ` Minchan Kim
2022-11-04  3:48         ` Sergey Senozhatsky
2022-11-04  7:12           ` Sergey Senozhatsky
2022-11-04 17:53             ` Minchan Kim
2022-11-04 17:27           ` Minchan Kim
2022-11-04 23:22             ` Sergey Senozhatsky
2022-11-04  7:53         ` Sergey Senozhatsky
2022-11-04  8:08           ` Sergey Senozhatsky
2022-11-04 17:47           ` Minchan Kim
2022-10-18  4:55 ` [PATCHv4 5/9] documentation: Add recompression documentation Sergey Senozhatsky
2022-10-18  4:55 ` [PATCHv4 6/9] zram: Add recompression algorithm choice to Kconfig Sergey Senozhatsky
2022-10-18  4:55 ` [PATCHv4 7/9] zram: Add recompress flag to read_block_state() Sergey Senozhatsky
2022-10-18  4:55 ` [PATCHv4 8/9] zram: Clarify writeback_store() comment Sergey Senozhatsky
2022-10-18  4:55 ` [PATCHv4 9/9] zram: Use IS_ERR_VALUE() to check for zs_malloc() errors Sergey Senozhatsky
2022-11-02 20:07 ` [PATCHv4 0/9] zram: Support multiple compression streams Minchan Kim
2022-11-03  3:36   ` Sergey Senozhatsky

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