Re: 2.5.39-mm1

[Maneesh Soni <maneesh@in.ibm.com>]

On Mon, Sep 30, 2002 at 08:51:48PM -0700, Andrew Morton wrote:
> Maneesh Soni wrote:
> > 
> > On Mon, 30 Sep 2002 23:55:50 +0530, Andrew Morton wrote:
> > 
> > > "Martin J. Bligh" wrote:
> > >>
> > >> Which looks about the same to me? Me slightly confused.
> > >
> > > I expect that with the node-local allocations you're not getting a lot
> > > of benefit from the lock amortisation.  Anton will.
> > >
> > > It's the lack of improvement of cache-niceness which is irksome. Perhaps
> > > the heuristic should be based on recency-of-allocation and not
> > > recency-of-freeing.  I'll play with that.
> > >
> > >> Will try
> > >> adding the original hot/cold stuff onto 39-mm1 if you like?
> > >
> > > Well, it's all in the noise floor, isn't it?  Better off trying broader
> > > tests.  I had a play with netperf and the chatroom benchmark.  But the
> > > latter varied from 80,000 msgs/sec up to 350,000 between runs. --
> > 
> > Hello Andrew,
> > 
> > chatroom benchmark gives more consistent results with some delay
> > (sleep 60) between two runs.
> > 
> 
> oh.  Thanks.  Why?

Could be because of sockets not getting closed immediately. I see them in 
TIME_WAIT state right after the run.

Maneesh

-- 
Maneesh Soni
IBM Linux Technology Center, 
IBM India Software Lab, Bangalore.
Phone: +91-80-5044999 email: maneesh@in.ibm.com
http://lse.sourceforge.net/