Is a 12 MB/s microSD overkill for what the glamo driver does?
jimcolt at gmail.com
Thu Jul 31 14:37:21 CEST 2008
Your comments are appreciated Andy,
I'll reply with the results (in M bytes per second) including the version of
OM 2007.2 used, test parameters used, the (?faster?) SD card I selected,
when I get them. I'll compare the result with same test on the "stock" SD
card that came with the Freerunner.
Among all that is to work on, the test will be a fun and a good to know
On Thu, Jul 31, 2008 at 1:53 AM, Andy Green <andy at openmoko.com> wrote:
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> Somebody in the thread at some point said:
> | Oh well, I should have bought a slower card. At least it won't be a
> | limiting factor.
> | I'll compare speeds I get with your 3M bytes/sec. anyway.
> | I was meaning 12 megabits /sec....
> | By 12MB/s I was referencing what I see here
> | http://en.wikipedia.org/wiki/Secure_Digital_card#Speeds
> In the world of benchmarks and speed estimates, you have to keep your
> wits about you to not be bamboozled. That's why I write out what I mean
> like 3MBytes/sec. The numbers in the Wikipedia article is in fact
> talking about MBytes/sec, most people use capital B to mean bytes and
> little b to mean bits. But I heartily recommend typing the few extra
> characters to remove any possibility of confusion.
> | 12MB/s is not in the table shown in that link however I am about to
> | receive a 4G 80x or 12MB/s card in the mail .
> We can't max out that transfer speed but it won't make any harm. In the
> future we might squeeze more performance from Glamo SD driver.
> - -Andy
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