X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=TODO;h=726b11801f8e53185edc813ce1cd37d7bbf95d10;hb=3ddaa7092a49f2164cc41c77b142132216e8a5fe;hp=3949bf874e720144690d15d4ae5e8d6a9db404ef;hpb=58055f2876e98db76d79fe4bb9f65f9f1d9fe43a;p=pintos-anon

diff --git a/TODO b/TODO
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 -*- text -*-
 
-* The p1-4.c testcase needs significant tuning.  Currently it takes
-  too long (especially when SHOW_PROGRESS is turned on) and doesn't
-  show significant improvement.
+* Get rid of rox--causes more trouble than it's worth
 
-* The semantics of the join system call should change so that it only
-  returns the exit code once.
+* Reconsider command line arg style--confuses everyone.
+
+* pintos script doesn't (always?) delete temp disks
+
+* Finish writing tour.
+
+
+
+
+
+* process_death test needs improvement
+
+* Internal tests.
+
+* Improve automatic interpretation of exception messages.
+
+* Userprog project:
+
+  - Mark read-only pages as actually read-only in the page table.  Or,
+    since this was consistently rated as the easiest project by the
+    students, require them to do it.
+
+  - Don't provide per-process pagedir implementation but only
+    single-process implementation and require students to implement
+    the separation?  This project was rated as the easiest after all.
+    Alternately we could just remove the synchronization on pid
+    selection and check that students fix it.
+
+* Filesys project:
+
+  - Need a better way to measure performance improvement of buffer
+    cache.  Some students reported that their system was slower with
+    cache--likely, Bochs doesn't simulate a disk with a realistic
+    speed.
+
+* Documentation:
+
+  - Add "Digging Deeper" sections that describe the nitty-gritty x86
+    details for the benefit of those interested.
+
+  - Add explanations of what "real" OSes do to give students some
+    perspective.
+
+* Assignments:
+
+  - Add extra credit:
+
+    . Low-level x86 stuff, like paged page tables.
+
+    . Specifics on how to implement sbrk, malloc.
+
+    . Other good ideas.
+
+    . opendir/readdir/closedir
+
+    . everything needed for getcwd()