[Xorp-users] Need suggestion about Embedded platform requirments.

[saurabh]

My experiments with xorp stats that cpu over-head is one time in
initialization. Well If you are bound even by memories 

As well you can recompile while disabling IPV6 and all loggings and further
use only PIM and IGMP 

(off course with fea, rib, fib2mrib and other basic libs only) and remove
all bgp, ospf, vrrp, rip, riping , static routes from

/usr/lib (by manually delete all files or remove them from scons build
process) , lead you to have around 10-12 Mb 

Of package. 

 

-Saurabh

 

  _____  

From: naresh raga [mailto:naresh_raga at yahoo.co.in] 
Sent: Sunday, June 27, 2010 12:18 AM
To: greearb at candelatech.com; saurabh.pandya at elitecore.com
Cc: xorp-users at xorp.org
Subject: Need suggestion about Embedded platform requirments.

 


Hello Ben and Surabh,
I am also working to port xorp onto Embedded platform(arm-based).I have seen
all your conversations in the mailing list.You have worked a lot in reducing
the memory footprint of xorp.I am worried about the CPU requirements.
     I have observed while starting xorp using ./xorp_rtrmgr with a small
boot file having interfaces and fea enabled is more CPU resource
intensive.Using top I have observed CPU and memory  requirements (peak
values) as:
Process          %CPU      %MEM
xorp_rtrmgr       6               0.3
xorp_fea            4               0.2

These values are for xorp-1.7 built with optimization(compiler flags used-Os
) and the build size in /usr/local/xorp is around 21MB after stripping the
binaries.My systems had two CPUs each of 3.00GHz and RAM is 1.9GB.So on
calculating 10% of 6.00GHz=600MHz (nearly) is the CPU needed to start xorp
with such a small configuration.Are there ways in reducing CPU .

I need suggestion what could be the minimum CPU and RAM requirement for
complete xorp to work on embedded target.Or
Quagga(unicast)+Xorp(multicast):For this combination what could be the CPU
and RAM requirements of an embedded target to work.
I think saurabh can come up with a good reply for the latter case as he is
working on this combination on embedded platform.

Thanks for your work and support,
T Raga Naresh





 

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