what is fsck's "slowdown"?

[Don Lewis]

On  4 Sep, Marc G. Fournier wrote:
> On Fri, 3 Sep 2004, Don Lewis wrote:

>> Would the file system in question happen to be full of UNREF files that
>> fsck is deleting?
> 
> mostly 'ZERO LENGTH DIRECTORY' ...

Hmn, this may be something else then, possibly the buffer lookup in
getdatablk().  It would be very interesting to compile/link a profiled
version of fsck and see what shows up as the hot spot.  Are you using
the default value for MAXBUFSPACE (defined in fsck.h).