Anyone want to test with a vanilla kernel? A plain Fedora userspace? On Tue, May 11, 2010 at 4:24 PM, James Cameron <[email protected]> wrote:
> On Tue, May 11, 2010 at 07:14:53PM -0400, John Watlington wrote: > > Writes in UNIX are typically asynchronous --- get the data into a memory > > buffer and the program can continue along its merry way. > > I strongly suspect that writes through the SD system are forced to wait > > for the media to complete the write. > > My tests show that our kernel is doing this for USB and SD, on ext2, > ext3, ext4, vfat, and raw access to the block device (open ... write ... > write ... close). It isn't doing it for writes to tmpfs or null. > > -- > James Cameron > http://quozl.linux.org.au/ > _______________________________________________ > Devel mailing list > [email protected] > http://lists.laptop.org/listinfo/devel >
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