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On Fri, 14 Jan 2005, Julian Anastasov wrote:
On Thu, 13 Jan 2005, Chris Caputo wrote:
Please consider the below patches against ipvsadm-1.24 and linux kernel
2.6.10 which add a "Weighted Least Incoming Bandwidth" scheduler to LVS.
I have also put these up at:
http://www.caputo.com/foss/ipvsadm-1.24-wlib.patch
http://www.caputo.com/foss/lvs_wlib-2.6.10.patch
Comments and suggestions welcome. I'd like to work towards this being
included in future releases if you think it worthwhile.
It looks good to me. Balancing based on outbps can
also be a good option for NAT. I assume there is one side effect,
one server can accept more load in short time while its inbps are
still low. As alternative, a wrr algorithm with weights updated
(frequently enough) based on inbps/outbps can better keep the
load according to the weights. But it depends on the content length per
connection, on the estimator's update period (isn't 2 seconds too
high for wlib) and only the traffic stats can make one happy :)
Agreed.
As for "Bandwidth" in the name of this scheduler, shall we consider to combine
byte rate and packet rate together? different applications may require
different caculating method. we probably need to have some flexibility in
configuration.
BTW, there is probably no float in kernel mode, it's good to transform the
comparison formula.
Thanks,
Wensong
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