Re: Traffic throttling

I thought of that problem before, and so manually invoke the garbage
collector once every 100 images. I've been running that way since before we
found out about this problem though.

Something I just tried was not actually sending an image over -- I still
make the RPC, but with no extra data, so the bandwidth used is functionally
nil. I still see the throttling happen in this case. So it's not a question
of how much data I'm sending, but something else. I've added logging on the
data source computer to track how long RPCs take, and it is seeing the
throttling as RPCs taking much longer than usual. In the cases where
traffic is throttled to zero, it always seems to take 10s; once that
"clears up" traffic then returns to normal.

In other words, what I'm seeing is:

Start: can make lots of RPCs/sec
Throttle level 1: can make 33 RPCs/sec.
Throttle level 2: for 10s, cannot make any RPCs.
Throttle removed: can make lots of RPCs/sec.

Given that consistency, I'm disinclined to blame some kind of resource
constraint on either computer; it seems more likely I'm dealing with some
kind of rule-based throttle here.

-Chris


On Tue, Aug 20, 2013 at 6:19 AM, Kent Borg <[email protected]> wrote:

> Could it be a garbage collection problem within your Python code?
>
> (Could MS Windows be using and reclaiming some resource??)
>
> -kb
>
>
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