Displaying 1 result from an estimated 1 matches for "buffer_boundary".
2010 Nov 02
2
[RFC][PATCH] direct-io: btrfs: avoid splitting dio requests for non-btrfs filesystems
Hi,
this is about an issue newer kernels show, bysplitting direct I/O requests
into 4k pieces to directly merge them in the Block Device Layer afterwards.
If anyone is interested in own tests just use a simple command like
dd if=/mnt/test/test-dd1 of=/dev/null iflag=direct bs=64k count=1
in combination with blktrace.
The following patch is more a proposal for discussion than a solution, well