X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;f=lib%2Fsorter%2FTODO;h=bd399e2a0d6884cac7df928cae615ffc7eb5378e;hb=aafbea40b7613274180c8bab60012a0322f8d7dd;hp=09e4986b50cb6ad85b96dc4e26312f5a13ff71f1;hpb=f08c91407f0ccdcc07cee4a49ccb4bddd4c35988;p=libucw.git

diff --git a/lib/sorter/TODO b/lib/sorter/TODO
index 09e4986b..bd399e2a 100644
--- a/lib/sorter/TODO
+++ b/lib/sorter/TODO
@@ -1,20 +1,12 @@
-Testing:
-o  Giant runs.
-o  Records of odd lengths.
-o  Empty files.
-
 Cleanups:
-o  Clean up data types and make sure they cannot overflow. (size_t vs. u64 vs. sh_off_t vs. uns)
 o  Log messages should show both original and new size of the data. The speed
    should be probably calculated from the former.
-o  Automatically tune ASORT_MIN_RADIX, ASORT_MIN_SHIFT and especially ASORT_RADIX_BITS.
-o  Check undefs in sorter.h and array.h.
+o  Buffer sizing in shep-export.
 
 Improvements:
-o  Switching between direct and normal I/O. Should use normal I/O if the input is small enough.
-o  How does the speed of radix splitting decrease with increasing number of hash bits?
-   Does it help to use more bits than we need, so that we sort less data in memory?
-o  Add automatic joining to the custom presorter interface?
+o  When quicksorting a large input (especially in threaded case), invest more
+   time to picking a good pivot.
+o  Overlay presorter I/O with internal sorting.
 
 Users of lib/sorter/array.h which might use radix-sorting:
 indexer/chewer.c