The document discusses Orange's use of the CLIF load testing framework to test the performance of its Web Service Oriented Infrastructure (WSOI). WSOI handles over 500 million calls per month. CLIF allows Orange to test WSOI's request throughput, response times, and resource usage under varying loads. Tests inject SOAP requests to evaluate the load on WSOI and its underlying servers and XML appliance. CLIF provides scalable, versatile load testing to help Orange ensure WSOI's performance and availability for its many clients.

1. Wide-spreading performance testing
at Orange with OW2 CLIF:
an SOA use case
Bruno Dillenseger, Orange Labs
Among the tens of real CLIF use cases at Orange, WSOI
is the web-service oriented infrastructure that runs over
500 web services consumers and providers, and handles
about half a billion calls per month for the Orange Group.
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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2. Testing a service performance and
resilience to high traffic
Probes measure usage of
load injector 1 arbitrary computing resources
load injector 2 resource probes
resource probes System Under Test
test supervision
Execution, load injector n
control and
monitoring of Load injectors :
load injectors ● send requests, wait for replies, measure response times
and probes. ● according to a given scenario defining the workload
● for example, emulating the load of a number of real users
→ virtual users
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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3. CLIF, an outstanding load testing
framework
Advanced features
● dynamically adjustable number of virtual users
● support for tests of any scale
– from one to millions of virtual users
– from one to more than 1000 load injectors
● integrated resources monitoring
● embedded reporting tool
Versatility
● OS-independent (Java 1.5+)
● integration to Eclipse
● continuous integration (Hudson/Jenkins)
● command line (through ant and maven)
● custom probes and load injectors
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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4. Orange's motivation for performance
testing is great
As an integrated telecommunication
operator, Orange manages a huge
variety of technologies
● networks, protocols
● equipments
● service platforms...
More than 221 millions clients in 42 countries!
● quality of service, user experience and user confidence are
key priorities for Orange
● performance issues are critical (testing, sizing, capacity
planning)
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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5. CLIF, an OW2 project lead by
Orange
The CLIF open source project was jointly launched in
2003 by INRIA and Orange in ObjectWeb/OW2
Maintaining CLIF is strategic for Orange
● versatility/adaptability to almost all technologies
– HTTP, SOAP, REST, FTP, DHCP, LDAP, DNS, Diameter, Radius,
EAP, GBA, GTPP, TR69, SIP, RTP, proprietary protocols...
● much cheaper than specific commercial tools
● growing confidence (feedback from the community)
● community contributions
● research transfer applied to performance testing
– software components, autonomic computing, cloud computing...
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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6. The WSOI use case: Orange's web-
service oriented infrastructure Enablers & Services
Enablers & Services
Enablers & Services
SMS/MMS, Enablers & Services identity, log, Infrastructure
address book, accounting, billing... Infrastructure
Infrastructure
storage... Consumers
Consumers Enablers & Services
Consumers
Enablers & Services Enablers & Services
Infrastructure Enablers & Services Infrastructure
Infrastructure Infrastructure
end-user services: Infrastructure Consumers
personal storage, Consumers
Consumers
Consumers
Consumers TV program, music
before WSOI Proliferation of specific infrastructures
with WSOI Unified and shared infrastructure
Enablers & Services Benefits:
● cost reduction (common
security, access control, scaling,
WSOI supervision, maintenance)
● ready-to-use and no-cost
infrastructure for new services
Challenge:
Consumers & Partners ● Performance and availability!
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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7. WSOI performance challenge
● Over 500 web services consumers and providers
● Half a billion calls per month
WSOI - Calls by month
500 000 000
450 000 000
400 000 000
350 000 000
300 000 000
Calls (Million)
250 000 000
200 000 000
150 000 000
100 000 000
50 000 000
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OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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8. Inside WSOI XML appliances
Enablers & Services
Load balancer
WSOI
Consumers & Partners
Main features:
● XML validation
● routing
● access control
● service level management
● security
Configuration server LDAP directory
● encryption, compression
● scalable
Mostly supported by hardware (XML appliance)
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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9. WSOI testbed with CLIF
Performance qualification of WSOI:
● request throughput and response times
● WSOI load:
– CPU and memory usage on configuration server and LDAP server
– XML appliance load (via SNMP monitoring)
● according to a variety of requests and responses sizes
SOAP requests
HTTP injectors WSOI
Fake services
and enablers
system probes
SNMP probe (cpu, memory)
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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10. Create a CLIF test project
The WSOI "project" will contain all test
definitions, input data and results:
● test plans files (.ctp)
– definition of injectors and probes to deploy
● scenarios files (.xis)
– virtual users behaviors
– load profile (number of active virtual users)
● input data
– a SOAP request to replay (captured with the
XML appliance)
● raw measures (report)
● moving statistics on measures gathered
during test executions (stats)
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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11. Scenario: import necessary plug-ins
The FileReader plug-in will load the captured SOAP request and let it
available to the HttpInjector.
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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12. Scenario: define virtual users
behaviors
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
12

13. Scenario: define load profiles
Evolution of the number of active virtual users with behavior B0 occording to
time (in seconds).
Note: the number of active virtual users may be set and changed manually
also at test execution time.
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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14. Define your load injectors and probes
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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15. Run a test
Control of probes
and load injectors
Monitoring of probes
and load injectors
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
15

16. Browse the measures
raw measures from
one test execution
CSV-formatted text file
with raw CPU usage
test plan
back-up
moving statistics
from monitoring
CSV-formatted text file
with moving statistics on
requests throughput,
response times and errors
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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17. Performance analysis and reporting
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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18. Advanced usage: self-regulated
load injection on WSOI
What is the maximum
number of virtual users such
that the XML appliance load
keeps less than 80%?
load injection invocation system
control (feedback)
system under test
probes probes
CLIF is enhanced with a load controller alarms, response
times, errors
alarms, resource
consumption, profiling
component monitoring the SNMP probe and
controlling the load injectors controller
saturation criteria load injection policy
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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19. Conclusion
CLIF is not just "yet another load injection" software
● high power and scalable
● versatility
– user interfaces, supported protocols, monitored resources
● more advanced features to come
The WSOI use case for Orange
● qualification of an XML appliance-based SOA infrastructure
● captured SOAP requests replayed with a plain HTTP injector
● full system load monitoring, including the XML appliance
3561 CLIF downloads in November 2011 for new 2.0.7
production release
● go to clif.ow2.org
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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20. Questions time
clif@ow2.org
OW2Con 2011, November 23-24, Orange Labs, Paris.
www.ow2.org.
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