Re: Enhancement request -- performance improvement

[Jim Meyering]

rh <address@hidden> wrote:

> Hello,
> Running du -sk on an apache disk cache containing 10GB of data and
> 30,000 directories and   files
> I see du using maybe .03% of the cpu.  It takes an hour for it to complete.

If you have an old version, and depending on how it's configured,
ext3 can be very slow when operating on directories containing
many entries.

> Are there any plans to make du multi-threaded?

No.  That wouldn't help.

> Or otherwise improve it's performance?

Patches welcome, but it's already pretty well-optimized,
since it uses fts.

> Is it filesystem sensitive? We are using ext3.

Yes.  File system type and options will definitely affect performance.