Re: feature request: list statistical properties for the list of files passed

[George Marselis]

James Youngman wrote:
> It's not such a great idea to do that.   Far better to chop that up
> into at least 1000 subdirectories.  But take care not to use more than
> about 32,000 subdirectories, as some Linux filesystems either don't
> allow it (ext3) or some operations become less efficient at that point
> (ext4's st_nlink changes meaning).
>
>   
Totally agree with you. Unfortunately I'm barred from waking the system
architects with my Cluex4 :

http://farm4.static.flickr.com/3662/3468737759_2e788e9576.jpg?v=0

i have been awaken already too many times in the middle of the night by the
filesystem reaching 98% inode capacity....
> I'm not sure determine_median_access_time has such a big potential
> user base, to be honest.
>
> However, I'm not sure what your performance requirements are, but if
> performance is an issue, bear in mind that there are several
> partitioning algorithms that allow you to find the median of a dataset
> without fully sorting it.
>
> James.
>   
nothing that complicated: find /path/to/dir/with/10M/files -type f  
+atime $MEDIAN_FILE_DATE  -exec rm -f {} \;

this runs sparingly enough and the server generates enough files to 
usually get rid of a couple of million files which have a date stamp of 
the most busiest days older than 30-40 days, without me having to 
investigate the filesystem. Yes, I am lazy :))

thank you for the reply. next time i'm in boston, i promise to drop a 
case of Tanglefoot Ale http://www.tanglefoot.co.uk/ into the FSF offices 
as a "thank you".

PS (lack of tanglefoot, it'll be sammy adams honey wheat :D )

George


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