On May 11, 2010, at 7:24 PM, James Cameron 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.
Are sync writes forced on removable media ? wad _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
