Re: Regulating bandwidth

[Olaf Selke <olaf.selke@xxxxxxxxxxxx>]

Roger Dingledine wrote:

> He is right that we need to think about how to offload more of the
> computation onto other threads. But concluding that is the easy part. :)

yep :-) Here's is a snapshot using config option "NumCPUs 4". It runs a
main thread using 73% of cpu number 3 and three cpuworker or dnsworker
threads using 3%, 1%, and 0% on cpu 2, 0, respectively 1:

anonymizer:~# top -H
[...]
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  P COMMAND
15486 debian-t  15   0 1871m 1.5g  25m R   73 76.3  12061:34 3 tor
 9483 debian-t  16   0 1871m 1.5g  25m S    3 76.3   8:44.03 2 tor
 9480 debian-t  17   0 1871m 1.5g  25m S    1 76.3   1:06.26 0 tor
 9481 debian-t  15   0 1871m 1.5g  25m S    0 76.3   0:26.27 1 tor
    1 root      15   0  2040  636  548 S    0  0.0   0:01.44 3 init
[...]

> The hard part is: what computations can we offload?

at least I can't. My poor C programming skills certainly won't help very
much.

regards, Olaf