[wp-hackers] Caching of numbers of comments?

[Sebastian Herp]

Hello list,

wordpress 2.0 RC3 seems to cache a lot of things. Does it cache the 
number of comments returned by the "comments_number"-function? Because 
that number seems to be displayed wrong in several postings. Why exactly 
does this need caching or is this bug not related to the cache?

Example:
http://www.sebbi.de/archives/2005/12/21/premiere-weg-vom-fenster/
The function currently returns "5 comments" while I definetly see 6 ...

P.S.: Does this limited caching really speed things up? Has somebody 
measured anything? Serving a page on my blog still takes around half a 
second ... half a second to compile some text and links into a 
html-page? That's pretty slow ...