===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/rsync/Attic/TODO.md,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -r1.5 -r1.6
--- src/usr.bin/rsync/Attic/TODO.md	2019/02/18 21:34:54	1.5
+++ src/usr.bin/rsync/Attic/TODO.md	2019/02/18 21:55:27	1.6
@@ -47,6 +47,12 @@
 
 - Hard: the same, but for Linux.
 
+- Hard: make the sender loop use an event handler on incoming and
+  outgoing I/O.  Right now it moves in lockstep and can be considerably
+  more responsive to requests by reading them in immediately instead of
+  having them sit in the receiver queue while it waits for disc IO.
+  This isn't *that* hard.
+
 - Hard: once the sender loop is optimised, the uploader can also queue
   up block metadata to send on-demand instead of reading in the file
   then sending, then reading again, then sending.