LoadRunner 5.0 ? ??

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LoadRunner 5.0 ? ??

• ???
• bskim_at_kbscom.co.kr
• ?????????(?)

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Server Monitor

• Helps identify server performance problems
  (hardware, OS, server software)
• Gives real-time picture of performance of
  server(s) during scenario
• Web server, Application server, Database server

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Server Monitor - Architecture

• Controller allows monitoring of both Unix and NT
  machines non-intrusively from Windows Controller
  i.e. no agent installation needed
• NT Server PerfMon API,
• Unix Server rstat API
• Relevant files
• ntcormon.dll, ntperfui.dll, online.dll,
  onlineps.dll

LR Controller
Host 1
Server (NT/Unix)
VU
VU
Agent
VU
VU
Host 2
VU
VU
Agent
VU
VU
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Server Monitor - Configuration

• Can view multiple servers simultaneously
• Can select Display time, Sample rate, Titles
• Can pause display and hide data lines

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Server Monitor - Tips

• Can monitor 3rd party software servers on NT like
  MS SQL Server, MS IIS Server
• Supports n-tier environments
• Any Unix machine (DEC, Pyramid, Sequent etc.) can
  be monitored providing
• rstat daemon running
• TCP/IP connectivity to Controller
• Any NT machine can be monitored (NT 3.51, 4.0)
• NT servers cannot be monitored by Win95
  Controller (no PerfMon)
• Can be used in all LR environments

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Network Delay Monitor

• Helps identify network performance problems and
  isolate problematic segments

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Network Delay Monitor - Architecture

• Implemented as a hidden virtual user on load
  machines (need Agent installation only - no
  server install needed)
• Network agent sends out traceroute packets of
  fixed size and measures delays between segments
  between vuser host machine and destination server
• Requires TCP/IP between client and server
• Support for clients on NT Unix.

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Network Delay Monitor - Configuration

• Need to specify host machine and destination
  server
• Can control the packet size, wait time, packet
  roundtrip timeout

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Network Delay Monitor - Tips

• Can be used in all LR environments
• Most useful as network size increases
  (LAN-gtWAN-gtInternet)
• Debugging Monitor-gtOptions
• Display Debug Messages - Debug Level x
• Show internal Controller entities displays
  hidden vusers
• Calibration is done when the scenario starts to
  determine network delay at no-load
• Dynamic network paths are supported
• Graphs for timeouts, path delay under load help
  determine problems

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New Protocol APIs

• 3-tier
• Java
• DCOM
• BaaN 4c
• TUXEDO 6.4

• 2-tier
• Oracle 8.0
• Sybase 11.0
• Informix 7.1 - 7.23
• ODBC 3.0

• Legacy
• VT 100, 220, 320, 420, 525

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Multi-threaded Vusers

• Running vusers on NT as threads instead of
  processes means major scalability improvements (x
  3-5 increase)
• major cost savings since now require less
  hardware
• One single driver is now responsible for replay
  (MDRV.EXE)
• Driver supports both multithreaded and
  non-multithreaded (process) replay
• Multithreading supported on NT only (not Unix)
• Client libraries must be threadsafe
• One customer achieved 2,500 Oracle users on one
  machine!

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Threadsafe Protocols

• Oracle 7.3 and higher
• ODBC 2.1 - 3.0 (depends on vendor device driver)
• MS SQL Server 6.5
• Informix 7.2 and higher
• HTTP (QuickTest)
• BaaN 4c and higher (GUI Client)
• DCOM (depends on client libraries)
• APPC
• RTE NT (for 3270 and 5250)
• Winsock

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Multi-threaded Tips

• Default is 50 threads per mdrv.exe
• wlrun.iniAgentAgentMaxThreadsPerDriver50
• Can see no. of threads for each process by
  opening NT Task Manager and selecting Thread
  Count
• Can turn on/off the threaded replay in run-time
  settings

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Vugen

• Vugen is now a 32-bit application. LoadRunner 5.0
  is now completely 32-bit
• 32-bit look and feel (e.g. Floating toolbar,
  right-click, 32-bit file system conventions etc.)
• Can still record 16-bit applications (although
  replay is 32-bit only)

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Vugen - Debugging Features

• Capture of raw SQL output (in real-time)
• Animated replay
• Pause
• Breakpoint
• Continue on error

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Parameterization

• New parameterization mechanism
• More powerful, flexible and robust

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Web Vuser - QuickTest

• QuickTest works on the HTML level
• Automatic handling of dynamic data, active server
  pages
• Correlation taken care of automatically.
• Run-time browser for viewing single user replay
• Realistic user emulation
• Bandwidth (LAN, WAN, Dial-up)
• Configurable number of simultaneous connections
• Browser type and HTTP version
• Cache sizing
• NOTE Old web vugen is included in LR 5.0
• Backwards compatibility
• Fallback path

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Scheduling

• Its now much more practical to schedule vusers
• Can specify start time and duration for scenario
• Can specify start time and duration for user
  groups
• Can specify start time or delay time for single
  users

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No NFS

• LoadRunner 5.0 does not require NFS to store
  vusers and scenario results
• Zero network overhead imposed by LR
• Implemented using FTP server software on hosts
• DB and GUI vusers transferred automatically
• SAP not supported for script transfer - use NT
  file system

Transfer vuser scripts
Transfer results
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No NFS - Tips

• Can use a combination of both NFS and non-NFS
  (e.g. Vuser with large data file being run on 10
  hosts)
• Can force other files (like GUI map) to be
  transferred from Controller to hosts (see Readme)
• extra_f.ini filemytest.usrc\mytest\guimap.
  gui
• (Expert User) Advanced Settings-gtDebug
  Information
• Keep temporary files

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Integration with TestDirector 5.0

• Vugen scripts can be saved into and opened from
  TD database
• Controller scenarios can be saved into and opened
  from TD database
• Scenario result path can be saved into TD
  database
• Analysis can be opened up from TD database
• TD can invoke LR Controller (locally) and open up
  scenario

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Miscellaneous

• Vugen supports recording of multi-process
  communication in ODBC and Oracle environments
• Merging of multiple Vuser types (e.g. Oracle and
  Winsock)
• vugen.datOracleUtilityExtWinsock
• New function lr_vuser_status_message - display
  messages in the vuser Status column
• Can now specify a start and end time for which
  analysis results are calculated

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Platform Support

• LoadRunner 5.0 supports
• Win95, 98 (except for mass-replay)
• NT 4.0
• Solaris 2.4-2.6
• HP UX 10.x
• IBM AIX 4.1.x
• Dropped support of
• Win31, NT 3.51, HP UX 9.x, AIX 3.x, SunOS, DEC
  Unix, ATT NCR

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LoadRunner 5.0 - Availability

• LoadRunner 5.01 Intl version is available
• Add-ins to Windows Controller
• Server Monitor
• Network Delay Monitor