High CPU usage.

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-=Mr B=-

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May 18, 2007, 2:00:11 PM5/18/07
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Jumping from 75 to 96% cpu usage on a P4 1.8Ghz, while barely using
200kB/s (total, both ways) and being connected to around 125-150
peers, on 3 torrents.

Whats even more interesting. Fox claims usage mentioned above.
However, on its own, the outgoing connection is using more then 180kB/
s and incoming more then 120kB/s, so there is 100kB/s bandwidth usage,
nobody can be traced to? Interesting, don't you think? Fox has, for
some reason, 200 plus connections, most on the default port for
transfers, but some on odd ports, like 2346, 2477, 2707, 2708, 2711,
2801, and so on. Even a few 9421.
Last, but perhaps not least. There is 40~ish live connections from a
"unknown" process, using the 9420 port.

Just thought ya might want to check up on it.
B!

Tom

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May 18, 2007, 4:09:52 PM5/18/07
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Hi B.,
Well the CPU use shouldn't be that high. We plan on looking into CPU
use soon. That's pretty high.

Speed measurement is not always completely accurate, but that's pretty
far off. Perhaps that tool is counting some additional overhead that
we're not, perhaps so noticeable because of so many connections. We do
an average to smooth the speed measurement as well, so that might
through it off.
That port usage is normal. Outgoing connections will use 9420,
incoming connections will use the ports like you mentioned, and
firefox communication will use port 9421.
Your network tool reports an "unknown" process? What tool is it?

Tom.

-=Mr B=-

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May 18, 2007, 7:34:27 PM5/18/07
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CurrPorts v1.20 is the software reporting "unknown" processes.

Bandwidth measurement is for actual transfers, since its the external
firewall reporting.
Sure hope ya look in to cpu usage.. Something is odd, since its been
going for it for a couple of hours,
and have downloaded about 20MB, while reporting 50-150 kB/s download
speed. Wasted transfer data?
B!

-=Mr B=-

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May 19, 2007, 8:03:54 AM5/19/07
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Something else odd. I set thread priority one step lower then default,
and performance went up.
Apparently Fox is doing something that limits the basic network
resources, and hence limit speeds.
Just thought it might be something that could get you guys to focus on
the cpu issue.

B!

Tom

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May 20, 2007, 7:36:46 PM5/20/07
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Hm interesting. We've seen the CPU issue too on the mac. Definitely a
problem there. That may help with our investigation, thanks.

Tom.

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