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Re: Using Windows to make Android smoother

Cross-posted to 3 groups.

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Paul wrote on Thu, 24 Oct 2024 03:20:49 -0400 :

> You would buy an SD card with static and dynamic wear leveling.

Hi Paul,
Thanks for that advice. I don't even know what that means. 
On Amazon, they don't tell you that in the product information.
My choices were Lexar or Sandisk. I chose the (cheaper) Lexar.

But should I of given that I need "wear leveling" for that card???

Putting my glasses on & my magnifying glass to the package, I still can
barely read the print - and it's too wide for the macro lens to snap a
single photo of, so I'll create a mosaic with the macro so you can see all
the fine print and funny-looking sdcard-specific-emoji (sdoji?).

 
> A quick format is good enough. 
> It writes and puts a FAT or $MFT on the partition.

Thank you for that advice that a quick format is good enough.
The slow format took a very long time - maybe 45 minutes or so.
The quick format didn't take more than ten seconds (I didn't time them).

> The slow format does the same, except it includes a read-verify of the surface.

Hmm. My slow format gave no "errors", so does that mean there were no read
errors or does that mean any read errors were jumped over by the format?
 
> To "erase" a storage device, diskpart "clean all" will write the entire
> surface with zeros. Or dd.exe can write the surface with zeros.
> 
> It's hard to get good info about SD, like the wear leveling scheme.
> If it has both static and dynamic wear leveling, it could last longer
> because then you can't really burn a hole in it as easily.

Ah. I see. I said so already at the top of this message, unless there's
something in all that sdcard emoji or the super-fine really fine print.

> The difference to a USB flash stick, could be the binning of the flash.
> Maybe the flash is a bit better. USB sticks could be pretty low quality.
> Like purchasing a 16GB USB key, could be a 32GB chip with half of it
> pinned off because it didn't pass.

Well, that original 64GB sd card has on it "Samsung", "EVO", a "3" inside
of a "U", and then "Micro XD" & "SC" & "I" also, which doesn't tell me
offhand if that has the requisite wear leveling but it lasted since May of
2021 in three phones without any indication to me of flash card errors.

> SD has limits on both write speed and read speed. The physical interface
> is pretty "thin", and that's why it can't read faster than it does.

Good information to know, where I use my "/storage/0000-0001/0001/" folder
to store pictures, videos, text files, PDFs, nova homescreen backups, APK
backups, etc., all of which seem "fast enough" for what I am doing.
 
> There is a promise that coming SD cards will have one lane PCI Express
> interfaces, which should make then read better. But when that is done,
> the writing won't be faster. Just as the worse USB3 flash sticks might be
> 100MB/sec read and 10MB/sec write. My Rally2 can write at about 16MB/sec,
> but it doesn't read in a big hurry. Whereas USB3 sticks can have larger
> differences between read and write. And some USB, have "uneven" behavior.
> I've got a stick here now, it stalls for a while, it does a tiny bit of
> writes, then stalls some more. My SD doesn't do that.

I think everyone should have an sd card in their phone because it allows
them to pay for smaller internal storage - and the sd card is portable
(which isn't the same thing as expandable - so let's be clear on that).

Portable means you can pop it out of one phone to use in another phone.
And it all just works - where the sd card - if they format it on Windows to
the same volume name - can be easily swapped out of one working phone into
another working phone and there will generally be no hiccups doing this.

So far my swap out worked as far as I can tell, with all my map navigation
data on the sd card reading perfectly from the map programs (like OSMAnd~)
residing on the phone's internal storage because the phone only knows that
the map data is stored in "/storage/0000-0001/0001/map/osm/." and to the
phone the new card has exactly the same address once I copied it over using
Windows to do that copy (most people use the Internet - but I do not!).

Another question I have is that I've chosen those 8 (actually 9) characters
because every sd card seems to come with that kind of a volume label (e.g.,
BF3A-D4C2); but I wonder if I can format it to one character?

I guess I'll try that since I doubt anyone knows if a volume label of a
single character will work on Android - so I'll run that test separately on
the remaining sd cards as I've already copied over 0001 data to this one.

Would formatting a micro-sd volume label to just "SD" for example, work?

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Thread

Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-10-23 21:54 +0000
  Re: Using Windows to make Android smoother Paul <nospam@needed.invalid> - 2024-10-24 03:20 -0400
    Re: Using Windows to make Android smoother "Carlos E.R." <robin_listas@es.invalid> - 2024-10-24 16:12 +0200
      Re: Using Windows to make Android smoother "...winston" <winstonmvp@gmail.com> - 2024-10-24 13:20 -0400
        Re: Using Windows to make Android smoother Harry S Robins <stanleyrobins@nothere.uk> - 2024-10-24 13:00 -0500
          Re: Using Windows to make Android smoother "...winston" <winstonmvp@gmail.com> - 2024-10-24 14:12 -0400
          Re: Using Windows to make Android smoother Arno Welzel <usenet@arnowelzel.de> - 2024-10-26 12:10 +0200
            Re: Using Windows to make Android smoother "Carlos E.R." <robin_listas@es.invalid> - 2024-10-26 15:56 +0200
            Re: Using Windows to make Android smoother Paul <nospam@needed.invalid> - 2024-10-26 14:09 -0400
              Re: Using Windows to make Android smoother Arno Welzel <usenet@arnowelzel.de> - 2024-10-28 16:53 +0100
                Re: Using Windows to make Android smoother "Carlos E.R." <robin_listas@es.invalid> - 2024-11-01 09:19 +0100
        Re: Using Windows to make Android smoother Paul <nospam@needed.invalid> - 2024-10-24 14:33 -0400
    Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-10-24 17:15 +0000
      Re: Using Windows to make Android smoother Paul <nospam@needed.invalid> - 2024-10-24 14:42 -0400
  Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-10-24 17:35 +0000
    Re: Using Windows to make Android smoother "...winston" <winstonmvp@gmail.com> - 2024-10-24 14:35 -0400
  Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-10-25 18:41 +0000
  Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-11-01 06:26 +0000
    Re: Using Windows to make Android smoother Andrews <andrews@spam.net> - 2024-11-01 13:56 +0000

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