Disable Pipe prints.  Revert to re-enable.

Signed-off-by: Matt Benjamin <matt@linuxbox.com>
Normalize simple and xio client/server tests for simple benchmarking.

Signed-off-by: Matt Benjamin <matt@linuxbox.com>
Spacing.

Signed-off-by: Matt Benjamin <matt@linuxbox.com>
Don't return a sentinel ref, since we didn't take one.

Signed-off-by: Matt Benjamin <matt@linuxbox.com>
Benching hacks.

Signed-off-by: Matt Benjamin <matt@linuxbox.com>
Remove experimental (unsafe) batching.

Signed-off-by: Matt Benjamin <matt@linuxbox.com>
Remove several (last?) mark_down Messenger mismatch cases.

Signed-off-by: Matt Benjamin <matt@linuxbox.com>