On Tue, May 4, 2010 at 5:20 AM, Theodore Tso <firstname.lastname@example.org> wrote:
Ahh, this one didn't get to LKML either, oops. I don't use gmail often. :P
Yeah, I should have mentioned that. I have 4G.
dirty_ratio goes to 0 whenever I set dirty_bytes to anything, and
dirty_bytes goes to 0 when I set dirty_ratio. I even tried setting
dirty_bytes to ~1G.
tdanotebook linux # zcat /proc/config.gz | grep DEBUG_FS
tdanotebook linux # mount | grep debug
none on /sys/kernel/debug type debugfs (rw)
tdanotebook linux # blktrace -d /dev/mmcblk0p1
BLKTRACESETUP: Inappropriate ioctl for device
Failed to start trace on /dev/mmcblk0p1
Usually hundreds of megabytes. I can do a few hundred without a
problem. Looks like 20% is 800M.