[Click] @Question about the kernel click CPU allocation@

[sandeep]

Dear Shule,

I am learning how to use SMP-Click and I hope you might find this
information useful.

First of all click should be configured to run in multithreaded mode. Give
the maximum number of threads you want click to spawn.

./configure --enable-multithreaded=<max num of threads>

Then follow the normal click installation procedure. make install

To leverage click multi-threading we have to either
statically<http://read.cs.ucla.edu/click/elements/staticthreadsched>or
dynamically <http://read.cs.ucla.edu/click/elements/balancedthreadsched>schedule
elements onto threads. To quickly check if SMP-click is working or
not add balanced thread scheduling statement in the last line of your click
script.

BalancedThreadSched<http://read.cs.ucla.edu/click/elements/balancedthreadsched>
();

Then the click script should be invoked using -t option

click-install -t <num of threads> <click_script.click>

Also we can use
ThreadMonitor<http://read.cs.ucla.edu/click/elements/threadmonitor>();
which will print cpu cycles consumed by threads.

Another useful element is
Print<http://read.cs.ucla.edu/click/elements/print>(CPU
true). Inserting this element in forwarding path prints the cpu core used.

Thanks & Regards,
Sandeep,
Student Researcher,
CTVR <http://ctvr.ie/> - Trinity College Dublin

On Thu, Apr 7, 2011 at 5:07 AM, shule ney <neyshule at gmail.com> wrote:

> Hi all:
> When I run kernel click in 2.6.24.7 kernel on dual core server, I found
> that
> only one core is used and the usage is 100% when we forward packet at full
> speed, the other core is idle with usage 0%, how can I make use of this
> idle
> core? If it's single threaed, does it mean I can't use the other
> core??Thanks very much to help me.
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