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LoadRunner 5.0 신 기능

LoadRunner 5.0 신 기능. 김범수 bskim@kbscom.co.kr 한국비지네스써비스(주). 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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LoadRunner 5.0 신 기능

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  1. LoadRunner 5.0 신 기능 김범수 bskim@kbscom.co.kr 한국비지네스써비스(주)

  2. 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

  3. 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

  4. Server Monitor - Configuration • Can view multiple servers simultaneously • Can select Display time, Sample rate, Titles • Can pause display and hide data lines

  5. 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

  6. Network Delay Monitor • Helps identify network performance problems and isolate problematic segments

  7. Network LR Controller Host 1 Server VU VU Agent VU VU Host 2 VU VU Agent VU VU 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.

  8. Network Delay Monitor - Configuration • Need to specify host machine and destination server • Can control the packet size, wait time, packet roundtrip timeout

  9. Network Delay Monitor - Tips • Can be used in all LR environments • Most useful as network size increases (LAN->WAN->Internet) • Debugging: Monitor->Options • 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

  10. Legacy: VT 100, 220, 320, 420, 525 New Protocol APIs 2-tier: • Oracle 8.0 • Sybase 11.0 • Informix 7.1 - 7.23 • ODBC 3.0 3-tier: • Java • DCOM • BaaN 4c + • TUXEDO 6.4

  11. 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!

  12. 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

  13. Multi-threaded Tips • Default is 50 threads per mdrv.exe • wlrun.ini[Agent]AgentMaxThreadsPerDriver=50 • 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

  14. 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)

  15. Vugen - Debugging Features • Capture of raw SQL output (in real-time) • Animated replay • Pause • Breakpoint • Continue on error

  16. Parameterization • New parameterization mechanism • More powerful, flexible and robust

  17. Scheduling • It’s 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

  18. File Server Store vuser results locally X LR Controller Host 1 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

  19. 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’ file:[mytest.usr]c:\mytest\guimap.gui • (Expert User) Advanced Settings->Debug Information • ‘Keep temporary files’

  20. 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

  21. Miscellaneous • Vugen supports recording of multi-process communication in ODBC and Oracle environments • Merging of multiple Vuser types (e.g. Oracle and Winsock) • vugen.dat[Oracle]UtilityExt=Winsock • 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

  22. 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, AT&T NCR

  23. LoadRunner 5.0 - Availability • LoadRunner 5.01 Int’l version is available • Add-ins to Windows Controller: • Server Monitor • Network Delay Monitor

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