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From: Richard Weinberger <richard@nod.at>
To: "Nikita V. Youshchenko" <nyoushchenko@mvista.com>
Cc: Namjae Jeon <linkinjeon@gmail.com>,
	artem.bityutskiy@linux.intel.com, linux-kernel@vger.kernel.org,
	adrian.hunter@intel.com, Heinz.Egger@linutronix.de,
	thomas.wucher@linutronix.de, linux-mtd@lists.infradead.org,
	shmulik.ladkani@gmail.com, tglx@linutronix.de,
	Marius.Mazarel@ugal.ro, tim.bird@am.sony.com
Subject: Re: UBI fastmap updates
Date: Wed, 27 Jun 2012 09:17:02 +0200	[thread overview]
Message-ID: <4FEAB36E.4030008@nod.at> (raw)
In-Reply-To: <201206271048.31524@zigzag.lvk.cs.msu.su>

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Am 27.06.2012 08:48, schrieb Nikita V. Youshchenko:
>> Would you infom me how much UBI attach time is improved with fastmap ?
> 
> I'm not Richard but still.
> 
> On board I'm currently working on, ubi attach time for 1G chip without 
> fastmap is more than 5 seconds. With fastmap, it is less than 250 
> milliseconds.

I can confirm these numbers.
On all of my boards the attach time dropped from a few seconds to
less than 500 milliseconds.
(The worst case I've seen was ~800 milliseconds)

Thanks,
//richard


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WARNING: multiple messages have this Message-ID (diff)
From: Richard Weinberger <richard@nod.at>
To: "Nikita V. Youshchenko" <nyoushchenko@mvista.com>
Cc: Namjae Jeon <linkinjeon@gmail.com>,
	linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
	adrian.hunter@intel.com, Heinz.Egger@linutronix.de,
	thomas.wucher@linutronix.de, shmulik.ladkani@gmail.com,
	tglx@linutronix.de, tim.bird@am.sony.com, Marius.Mazarel@ugal.ro,
	artem.bityutskiy@linux.intel.com
Subject: Re: UBI fastmap updates
Date: Wed, 27 Jun 2012 09:17:02 +0200	[thread overview]
Message-ID: <4FEAB36E.4030008@nod.at> (raw)
In-Reply-To: <201206271048.31524@zigzag.lvk.cs.msu.su>

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Am 27.06.2012 08:48, schrieb Nikita V. Youshchenko:
>> Would you infom me how much UBI attach time is improved with fastmap ?
> 
> I'm not Richard but still.
> 
> On board I'm currently working on, ubi attach time for 1G chip without 
> fastmap is more than 5 seconds. With fastmap, it is less than 250 
> milliseconds.

I can confirm these numbers.
On all of my boards the attach time dropped from a few seconds to
less than 500 milliseconds.
(The worst case I've seen was ~800 milliseconds)

Thanks,
//richard


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  reply	other threads:[~2012-06-27  7:17 UTC|newest]

Thread overview: 122+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-23 13:03 UBI fastmap updates Richard Weinberger
2012-06-23 13:03 ` Richard Weinberger
2012-06-23 13:03 ` [PATCH 1/7] UBI: Fastmap: Modify the WL sub-system to prodcue a free anchor PEB Richard Weinberger
2012-06-23 13:03   ` Richard Weinberger
2012-06-23 13:03 ` [PATCH 2/7] UBI: Fastmap: Fix WARN_ON() Richard Weinberger
2012-06-23 13:03   ` Richard Weinberger
2012-06-23 13:03 ` [PATCH 3/7] UBI: Fastmap: Ensure that not all anchor PEBs go into a pool Richard Weinberger
2012-06-23 13:03   ` Richard Weinberger
2012-06-23 13:03 ` [PATCH 4/7] UBI: Fastmap: Fix ubi_assert() Richard Weinberger
2012-06-23 13:03   ` Richard Weinberger
2012-06-23 13:03 ` [PATCH 5/7] UBI: Fastmap: Kill max_pnum logic Richard Weinberger
2012-06-23 13:03   ` Richard Weinberger
2012-06-23 13:03 ` [PATCH 6/7] UBI: Fastmap: Reuse all fastmap PEB if no free PEBs are available Richard Weinberger
2012-06-23 13:03   ` Richard Weinberger
2012-06-23 13:03 ` [PATCH 7/7] UBI: Fastmap: Get rid of fm_pool_mutex Richard Weinberger
2012-06-23 13:03   ` Richard Weinberger
2012-06-27  4:20 ` UBI fastmap updates Namjae Jeon
2012-06-27  4:20   ` Namjae Jeon
2012-06-27  6:48   ` Nikita V. Youshchenko
2012-06-27  6:48     ` Nikita V. Youshchenko
2012-06-27  7:17     ` Richard Weinberger [this message]
2012-06-27  7:17       ` Richard Weinberger
  -- strict thread matches above, loose matches on Subject: below --
2013-09-28 13:55 Richard Weinberger
2013-10-03 16:44 ` Artem Bityutskiy
2012-07-09 12:18 Richard Weinberger
2012-07-09 12:18 ` Richard Weinberger
2012-08-02 14:12 ` Artem Bityutskiy
2012-08-02 14:12   ` Artem Bityutskiy
2012-08-02 14:15   ` Richard Weinberger
2012-08-02 14:15     ` Richard Weinberger
2012-08-02 14:29     ` Artem Bityutskiy
2012-08-02 14:29       ` Artem Bityutskiy
2012-08-02 14:51       ` Richard Weinberger
2012-08-02 14:51         ` Richard Weinberger
2012-08-02 16:17         ` Artem Bityutskiy
2012-08-02 16:17           ` Artem Bityutskiy
2012-08-02 16:32           ` Richard Weinberger
2012-08-02 16:32             ` Richard Weinberger
2012-08-02 16:45             ` Artem Bityutskiy
2012-08-02 16:45               ` Artem Bityutskiy
2012-08-02 16:54               ` Richard Weinberger
2012-08-02 16:54                 ` Richard Weinberger
2012-08-02 17:03               ` Tim Bird
2012-08-02 17:03                 ` Tim Bird
2012-08-02 17:06                 ` Richard Weinberger
2012-08-02 17:06                   ` Richard Weinberger
2012-08-02 17:40                 ` Artem Bityutskiy
2012-08-02 17:40                   ` Artem Bityutskiy
2012-08-02 17:45                   ` Richard Weinberger
2012-08-02 17:45                     ` Richard Weinberger
2012-08-02 17:59                     ` Artem Bityutskiy
2012-08-02 17:59                       ` Artem Bityutskiy
2012-08-02 18:03                       ` Richard Weinberger
2012-08-02 18:03                         ` Richard Weinberger
2012-08-02 18:15                         ` Artem Bityutskiy
2012-08-02 18:15                           ` Artem Bityutskiy
2012-08-05  8:23                     ` Shmulik Ladkani
2012-08-05  8:23                       ` Shmulik Ladkani
2012-08-05 14:25                       ` Richard Weinberger
2012-08-05 14:25                         ` Richard Weinberger
2012-08-02 17:50                 ` Artem Bityutskiy
2012-08-02 17:50                   ` Artem Bityutskiy
2012-08-02 14:58 ` Artem Bityutskiy
2012-08-02 14:58   ` Artem Bityutskiy
2012-08-02 14:59   ` Richard Weinberger
2012-08-02 14:59     ` Richard Weinberger
2012-08-02 15:18     ` Artem Bityutskiy
2012-08-02 15:18       ` Artem Bityutskiy
2012-08-02 15:19       ` Richard Weinberger
2012-08-02 15:19         ` Richard Weinberger
2012-08-06 17:36   ` Richard Weinberger
2012-08-06 17:36     ` Richard Weinberger
2012-08-07  4:21     ` Artem Bityutskiy
2012-08-07  4:21       ` Artem Bityutskiy
2012-08-07  7:29       ` Richard Weinberger
2012-08-07  7:29         ` Richard Weinberger
2012-08-07 18:53         ` Artem Bityutskiy
2012-08-07 18:53           ` Artem Bityutskiy
2012-08-02 18:50 ` Artem Bityutskiy
2012-08-02 18:50   ` Artem Bityutskiy
2012-08-02 18:56   ` Artem Bityutskiy
2012-08-02 18:56     ` Artem Bityutskiy
2012-08-03  8:47 ` Artem Bityutskiy
2012-08-03  8:47   ` Artem Bityutskiy
2012-08-03  8:56   ` Richard Weinberger
2012-08-03  8:56     ` Richard Weinberger
2012-08-17 13:11 ` Artem Bityutskiy
2012-08-17 13:11   ` Artem Bityutskiy
2012-08-17 13:33   ` Richard Weinberger
2012-08-17 13:33     ` Richard Weinberger
2012-08-17 13:41     ` Artem Bityutskiy
2012-08-17 13:41       ` Artem Bityutskiy
2012-08-17 13:43       ` Richard Weinberger
2012-08-17 13:43         ` Richard Weinberger
2012-08-17 14:06         ` Artem Bityutskiy
2012-08-17 14:06           ` Artem Bityutskiy
2012-07-02 16:23 Richard Weinberger
2012-07-02 16:23 ` Richard Weinberger
2012-06-29 15:14 Richard Weinberger
2012-06-29 15:14 ` Richard Weinberger
2012-06-30 10:43 ` Artem Bityutskiy
2012-06-30 10:43   ` Artem Bityutskiy
2012-06-30 10:53   ` Richard Weinberger
2012-06-30 10:53     ` Richard Weinberger
2012-06-30 11:24     ` Artem Bityutskiy
2012-06-30 11:24       ` Artem Bityutskiy
2012-06-30 14:24     ` Artem Bityutskiy
2012-06-30 14:24       ` Artem Bityutskiy
2012-07-08 11:47 ` Shmulik Ladkani
2012-07-08 11:47   ` Shmulik Ladkani
2012-07-08 12:07   ` Richard Weinberger
2012-07-08 12:07     ` Richard Weinberger
2012-07-08 15:11     ` Richard Weinberger
2012-07-08 15:11       ` Richard Weinberger
2012-07-09  7:37     ` Shmulik Ladkani
2012-07-09  7:37       ` Shmulik Ladkani
2012-07-09  8:19       ` Richard Weinberger
2012-07-09  8:19         ` Richard Weinberger
2012-06-27 15:57 Richard Weinberger
2012-06-27 15:57 ` Richard Weinberger
2012-06-18 16:18 UBI Fastmap updates Richard Weinberger
2012-06-18 16:18 ` Richard Weinberger

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