Re: readdir vs. getattr

Jim Rees
2013-04-04T15:15:12Z

Tigran Mkrtchyan wrote:

we have a directory with 50K (number of ) files in it.
The user does a 'ls' and I can see READDIR4. To
get the complete listing a client need to send ~380 requests.
Now user does yet another 'ls' in the same directory.
The client sends a GETATTR on directorie's FH
(actually two of GETATTRS - why?!!) and discovers that a
directory didn't change and re-uses existing listing, BUT!!!
for each file in the directory it sends a GETATTR to discover
is the file's attributes are changed. For 50K files it's a 50K requests.

So is this a "ls -l"? Because for "ls" it shouldn't stat all the files.