[Forgive my earlier version of this e-mail, it was confusing. I hope
this one is better.]
A little Python is a dangerous thing...
I was running a script that does a lot of http GETs to a remote machine
with a fast network connection (linode), and after awhile it slows down,
and I notice other things on my computer also slow down, things like a
DNS lookup of google.com.
I wrote an even simpler Python script that does a single packet ping of
8.8.8.8 and then does a dig of a list of well known names (things like
google.com, yahoo.com, ...) and I ran it in a loop: it runs fast at
first but then slows down, with some really long pauses. Pauses of
predictable favorite lengths.
This is over DSL. So I plugged in my phone and did a tether through it,
and the simpler script behaves similarly: fast at first then pauses. I
tried running the simpler script on a Linux on a different DSL network
across the country and it worked better there, but still seemed to
deteriorate.
Then I tried running the simpler script on my linode machine and it ran
fine there.
The difference is the NAT? In each case where I am behind a NAT it
starts fast and then slows down. On the one case where I had no NAT it
ran fast. Do cheap NAT boxes not know how long to keep their translation
records, and get plugged up?
Thanks,
-kb
_______________________________________________
Discuss mailing list
[email protected]
http://lists.blu.org/mailman/listinfo/discuss
_______________________________________________
Discuss mailing list
[email protected]
http://lists.blu.org/mailman/listinfo/discuss
