Rev 2569: Clearer description of locality of reference tuning. in sftp://rookery/~/public_html/baz2.0/repository

[Robert Collins]

At sftp://rookery/~/public_html/baz2.0/repository

------------------------------------------------------------
revno: 2569
revision-id: robertc at robertcollins.net-20070702071125-cfv9utb636hn3kg3
parent: robertc at robertcollins.net-20070702051812-9ztlxv5nw1w3v10m
committer: Robert Collins <robertc at robertcollins.net>
branch nick: repository
timestamp: Mon 2007-07-02 17:11:25 +1000
message:
  Clearer description of locality of reference tuning.
modified:
  doc/developers/status.txt      status.txt-20070702023117-6xss29lx170qndwr-1
=== modified file 'doc/developers/status.txt'
--- a/doc/developers/status.txt	2007-07-02 05:18:12 +0000
+++ b/doc/developers/status.txt	2007-07-02 07:11:25 +0000
@@ -64,11 +64,13 @@
 ---------------------
 
 - We should stat files in the same directory without reading or statting
-files in other directories.
+  files in other directories. That is we should do all the statting we
+  intend to do within a given directory without doing any other IO, to
+  minimise pressure on the drive heads to seek.
 
 - We should read files in the same directory without reading or writing
-files in other directories - and note this is separate to statting (file
-data is usually physically disjoint to metadata).
+  files in other directories - and note this is separate to statting (file
+  data is usually physically disjoint to metadata).
 
 
 Scaling observations