Re: how many threads

["Michael" <michael () insulin-pumpers org>]

> Michael wrote:
>
> > Anyone care to guess how many threads you must hold on a winduhs box
> >  to crash the host??
> >
> > One spam source IP address that's in my tarpits has almost 600 
> > combined threads hung on the two tarpit servers, most for several 
> > days.
>
> I believe that (all other things being equal) WinNT can cope with
> over 4000 threads. That should apply to Win2K and WinXP as well. But
> if all of those threads are actually competing, rather than just
> sleeping, the machine will dribble to a halt (not crash) due to
> context-switching overheads.

Well.... I suspect it's less than that, but maybe it's not an NT 
based system. A couple of hours after I wrote the original message 
the suspect host vanished from the connection pool only to reappear 
the next day, the thread count has again been climbing over the last 
couple of days and now stands at about 450 between our two sites.

61.62.112.19 adsl-sta-kao-62-112-19.so-net.net.tw

If only there were 1,000 cannibals running out there :-)
... there'd be a lot less spam.

Michael