|
I too have been looking to benchmark an LVS-NAT setup using the 2.4 kernel
but I'm not sure what a good benchmark is? What do people suggest for the
following setup?
# | |
# | client |
# |________|
# CIP=eth0 192.168.1.13
# |
# |
# VIP=eth0:0 192.168.1.200/32
# __________
# | |
# | director |
# |__________|
# DIP=eth2:254 10.10.10.200/24
# |
# |
# |
# --------------------------------------------
# | | |
# | | |
# RIP1=eth0 RIP2=eth0 RIP=eth0
# 10.10.10.10 10.10.10.20 10.10.10.30
# ______________ ______________ ________________
# | | | | | |
# | rs1 | | rs2 | | rs3 |
# |______________| |______________| |________________|
Director = 2x 1GHz 1Gig RAM 2 onboard Pro100's and 1 64bit/66MHz
Pro1000(talks to real server)
Realservers = 3X same config as above but no Pro1000 (could add though)
All running the 2.4-9 linux kernel with that level of LVS code. The network
is fully switched 100/1000.
Any suggestions would be helpful. Definitely looking to benchmark web or
streaming type content.
--Ben Odom
-----Original Message-----
From: Peter Mueller [mailto:pmueller@xxxxxxxxxxxx]
Sent: Wednesday, October 31, 2001 1:08 PM
To: 'lvs-users@xxxxxxxxxxxxxxxxxxxxxx'
Subject: RE: NAT Performance
|I'm considering LVS as a replacement to Cisco LocalDirectors to front
|several SMTP server farms. Due to customer-end constraints we
|need to do
|this via NAT. Target throughput is up to 40 Mbps. Is this
|realistic? LVS
|hardware is likely to be twin 1GHz Pentiums.
|
40mbps sounds all right on dual-1ghz box, assuming you use later 2.4 kernel
on your director. Be very stingy on your NICs.. for example eepro100's seem
to historically be 'uncertain' with high bandwidth..
I haven't seen a "gauranteed" figure with newer 2.4 kernels. However,
lurking on the mailing list for a year or so now has led me to believe that
the key LVS people now believe NAT (with 2.4 kernel) to perform similar to
DR. LVS-DR easily exceeds 40mbs, assuming you have decent hardware.
some probably outdated performance evaluations:
http://www.linuxvirtualserver.org/Joseph.Mack/performance/single_realserver_
performance.html
and
http://www.linuxvirtualserver.org/Documents.html#manuals (look under
performance)
===
bottom line : if I were you, I would have a basic assumption that it will
perform and proceed directly to your testing of LVS-NAT and see if it does.
It would only take 2-3 days and could possibly save you lots of $.
Peter
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