vhiz wrote:
> Hi All,
>  
> I want to monitor the frequency of the socket buffer (receive) overflow 
> during a data transfer over UDP.
> Is there a way to do this using dtrace or any other solaris tool?
>  
> Thank you,
> Vishal

If you're looking for the drops as a function of time, you could do
something like this:

# dtrace -n 'BEGIN{start=timestamp;} mib:::udpInOverflows{@ =
lquantize((timestamp-start)/1000000000,0,10);}'

That will generate a histogram of the number of overflows each second
for the first 10 seconds that it runs (and puts all the rest into a
">10" bucket if run longer).  Hit ^C to print the data.  (It won't print
anything, though, if no drops occur.)

You can get a similar result with:

% netstat -s -i 1 | grep udpInOverflows

-- 
James Carlson         42.703N 71.076W         <carls...@workingcode.com>
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