importfeed: stream metadata for 5% speedup

On top of the 10% speedup from streaming url logs.
2020-07-14 14:35:26 -04:00 · 2020-07-14 14:35:26 -04:00 · 7b2d236556
commit 7b2d236556
parent 535cdc8d48
5 changed files with 58 additions and 28 deletions
--- a/doc/todo/precache_logs_for_speed_with_cat-file_--buffer.mdwn
+++ b/doc/todo/precache_logs_for_speed_with_cat-file_--buffer.mdwn
@ -61,6 +61,3 @@ looked up efficiently. (Before these changes, the same key lookup was done
 speedup when such limits are used. What that optimisation needs is a way to
 tell if the current limit needs the key or not. If it does, then match on
 it after getting the key, otherwise before getting the key.
-
-Also, importfeed could be sped up more, probably, if knownItems
-streamed through cat-file --buffer.