SD card flashing time

James Cameron quozl at
Thu Sep 16 19:01:59 EDT 2010

On Thu, Sep 16, 2010 at 05:42:03PM -0400, Martin Langhoff wrote:
> On Thu, Sep 16, 2010 at 2:15 AM, James Cameron <quozl at> wrote:
> > What is interesting about the filesystem result is that it takes longer
> > despite writing far less data; 1.6 GB out of 4 GB. ?And there was no
> > ext3 journal involved during the write.
> But probably a lot of fs updates.

Redundant writes of filesystem metadata, yes.

> >> That'd be more fair
> > I wasn't trying to be fair, I was trying to win.
> I like that.
> I am still very curious about resize behaviour. Does resize2fs
> zero-out the blocks?

No, certainly not.  There's no justification for either mke2fs or
resize2fs to write to blocks that do not form part of the filesystem
metadata.  Why would you want to zero-out blocks anyway?

James Cameron

More information about the Devel mailing list