> In fact investigating further shows some numbers on a profiling kernel.  During 207s of system time, the top few biggies are:
> 
> Each sample counts as 0.002 seconds.
>   %   cumulative   self              self     total           
>  time   seconds   seconds    calls  ms/call  ms/call  name    
>   7.39     15.37    15.37 10583344     0.00     0.00  lockmgr

I've seen the instruction trace for lockmgr calls on i386 (under bochs)
it is rather expensive and would benefit from a rototil.
(it spends a lot of time deciding which action to take...)

	David

-- 
David Laight: david@l8s.co.uk