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Groups > comp.mobile.android > #37303

Re: Android 6

From Daniel James <daniel@me.invalid>
Newsgroups comp.mobile.android
Subject Re: Android 6
Date 2017-01-04 13:40 +0000
Organization A noiseless patient Spider
Message-ID <VA.00000c26.19a8c50d@me.invalid> (permalink)
References (7 earlier) <a9d5f932-7b61-0ec9-6954-ac9f7f27c7bb@arnowelzel.de> <VA.00000c22.00519969@me.invalid> <bad4a6af-a0df-3671-b8e8-589eb15e0b4d@arnowelzel.de> <VA.00000c24.0503f376@me.invalid> <26aa4a1e-1283-465b-010d-f0d53655763e@arnowelzel.de>

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In article <26aa4a1e-1283-465b-010d-f0d53655763e@arnowelzel.de>, Arno 
Welzel wrote:
>> As I said: a card may get slower as it gets full, but that's NOT 
>> something that only happens with FAT.
> 
> Yes - this applies to *writing* data, not reading.

Absolutely!

> There is no reason why a FAT file systems on a flash memory should get
> slower for *reading* data when there are more files stored.

No, there isn't. That's right. *I* never said there was.

> Flash memory may get slower when *writing* a lot of data, because of
> wear leveling more blocks get written at least once and have to be
> erased before you write something.

Also true.

> Exactly this is, what TRIM does:
> erasing unused blocks in the background, so they are ready when you 
need
> them.

Not exactly, no. TRIM is a command issued by the filesystem driver when 
a file is erased or truncated to tell the flash controller that the 
logical blocks formerly occupied by that file are no longer needed.

The process of erasing unused blocks in the background goes on 
regardless of the use of TRIM, it's just that when TRIM is in use the 
controller knows more about the blocks that are available to be erased 
and reused and so can do the job more effectively.

-- 
Cheers,
 Daniel.

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Thread

Android 6 Bill <Billaboard@gmail.com> - 2016-12-22 17:21 +0000
  Re: Android 6 The Real Bev <bashley101@gmail.com> - 2016-12-22 10:00 -0800
    Re: Android 6 Bill <Billaboard@gmail.com> - 2016-12-23 00:23 +0000
      Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-22 19:30 -0500
        Re: Android 6 Bill <Billaboard@gmail.com> - 2016-12-23 12:42 +0000
          Re: Android 6 tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2016-12-23 11:58 -0500
            Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-29 13:43 +0100
              Re: Android 6 Daniel James <daniel@me.invalid> - 2016-12-30 15:34 +0000
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-30 22:33 +0100
                Re: Android 6 Daniel James <daniel@me.invalid> - 2016-12-31 13:27 +0000
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-04 08:59 +0100
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-04 13:40 +0000
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-11 09:00 +0100
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-15 18:23 +0000
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-15 21:20 +0100
                Re: Android 6 AL <45364747@invalid.com> - 2017-01-04 10:06 -0700
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-11 09:00 +0100
                Re: Android 6 tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2017-01-05 01:34 -0500
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-07 14:14 +0000
                Re: Android 6 tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2017-01-07 13:09 -0500
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-08 18:18 +0000
                Re: Android 6 tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2017-01-08 15:42 -0500
                Re: Android 6 The Real Bev <bashley101@gmail.com> - 2017-01-08 17:11 -0800
                Re: Android 6 nospam <nospam@nospam.invalid> - 2017-01-08 20:19 -0500
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-09 23:55 +0000
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-11 18:07 +0100
                Re: Android 6 Frank Slootweg <this@ddress.is.invalid> - 2017-01-08 21:34 +0000
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-09 23:55 +0000
          Re: Android 6 Joerg Lorenz <hugybear@gmx.ch> - 2016-12-24 10:49 +0100
  Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-22 23:55 +0100
    Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-22 19:15 -0500
      Re: Android 6 Joerg Lorenz <hugybear@gmx.ch> - 2016-12-23 05:46 +0100
        Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-23 00:15 -0500
      Re: Android 6 Dave Higton <dave@davehigton.me.uk> - 2016-12-23 17:11 +0000
        Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-23 12:43 -0500
          Re: Android 6 Dave Higton <dave@davehigton.me.uk> - 2016-12-23 21:22 +0000
            Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-24 14:29 -0500
              Re: Android 6 Dave Higton <dave@davehigton.me.uk> - 2016-12-25 11:10 +0000
                Re: Android 6 Piet <www.godfatherof.nl/@opt-in.invalid> - 2016-12-25 12:37 +0100
                Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-25 11:18 -0500
                Re: Android 6 Dave Higton <dave@davehigton.me.uk> - 2016-12-25 20:28 +0000
          Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-29 12:02 -0500
            Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-29 23:45 +0100
              Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-29 18:02 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-30 22:24 +0100
                Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-31 11:55 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-04 09:04 +0100
                Re: Android 6 nospam <nospam@nospam.invalid> - 2017-01-04 10:14 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-11 18:11 +0100
                Re: Android 6 nospam <nospam@nospam.invalid> - 2017-01-11 13:05 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-13 17:23 +0100
                Re: Android 6 nospam <nospam@nospam.invalid> - 2017-01-16 15:35 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-17 05:39 +0100
              Re: Android 6 Daniel James <daniel@me.invalid> - 2016-12-30 15:34 +0000
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-30 22:26 +0100
                Re: Android 6 Daniel James <daniel@me.invalid> - 2016-12-31 13:27 +0000
                Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-31 11:55 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-04 09:11 +0100
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-04 13:40 +0000
                Re: Android 6 nospam <nospam@nospam.invalid> - 2017-01-04 10:14 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-11 18:12 +0100
                Re: Android 6 nospam <nospam@nospam.invalid> - 2017-01-11 13:05 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-13 17:24 +0100
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-15 18:23 +0000
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-15 21:30 +0100
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-16 15:42 +0000
                Re: Android 6 nospam <nospam@nospam.invalid> - 2017-01-16 15:35 -0500
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-17 05:44 +0100
                Re: Android 6 Daniel James <daniel@me.invalid> - 2017-01-17 17:47 +0000
                Re: Android 6 Bill <Billaboard@gmail.com> - 2017-01-01 01:05 +0000
                Re: Android 6 tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2017-01-02 02:08 -0500
                Re: Android 6 David Taylor <david-taylor@blueyonder.co.uk.invalid> - 2017-01-02 08:01 +0000
                Re: Android 6 nospam <nospam@nospam.invalid> - 2017-01-02 08:51 -0500
                Re: Android 6 Bill <Billaboard@gmail.com> - 2017-01-02 20:41 +0000
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-04 09:18 +0100
                Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2017-01-04 09:14 +0100
          Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-29 14:05 +0100
      Re: Android 6 nospam <nospam@nospam.invalid> - 2016-12-29 12:02 -0500
        Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-29 23:46 +0100
          Re: Android 6 Dave Higton <dave@davehigton.me.uk> - 2016-12-31 20:18 +0000
      Re: Android 6 Arno Welzel <usenet@arnowelzel.de> - 2016-12-29 13:47 +0100

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