DVClub January 18th 2009 Coverage Closure Mike Bartley, TVS
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Test and Verification Solutions 1 18 th January 2010 DVClub January 18th 2009 Coverage Closure Mike Bartley, TVS
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DVClub January 18th 2009 Coverage Closure Mike Bartley, TVS. Welcome. 5th DVClub event Bristol, UK wide, international Next events Using Design IP – a Verification Perspective Integration Verification Using Open Source and Free Verification tools Software Test Club Thank you - PowerPoint PPT Presentation
Transcript of DVClub January 18th 2009 Coverage Closure Mike Bartley, TVS
Test and Verification Solutions 118th January 2010
DVClub
January 18th 2009
Coverage Closure
Mike Bartley, TVS
2Test and Verification Solutions 218th January 2010
Welcome
• 5th DVClub event– Bristol, UK wide, international
• Next events– Using Design IP – a Verification Perspective– Integration Verification– Using Open Source and Free Verification tools
• Software Test Club• Thank you
– Patrick Thornhill, Bryan Dickman, Rob Williams– Sponsors - UWE, ARM, Infineon, NMI, TVS, Synopsys
• Speakers12.10: Dan Benua, Corporate Application Engineering Manager, Synopsys
12.30: Dr. Giovanni Squillero, Politecnico di Torino
13.00: Avi Ziv, IBM Research Lab at Haifa, Israel
• Survey– 30 respondents!
3Test and Verification Solutions 318th January 2010
Which coverage metrics do you use for in your dynamic verification flow?
Other coverage metrics used– Certitude– Toggle coverage of integration nets for SoCs– Configuration Coverage– SW Metrics, API Coverage, Interrupt Coverage
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40.00%
60.00%
80.00%
100.00%
Diretced testcoverage
Code Coverage Functional Coverage Assertion Coverage
4Test and Verification Solutions 418th January 2010
Distribution of effort in directed testing
Other areas of effort• Regression management• Covering legacy tests• Praying we haven't forgotten anything
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% of effort expended
% o
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Defining directed tests
Writing directed tests
Debugging tests
Signing off holes
5Test and Verification Solutions 518th January 2010
Distribution of effort in code coverage
Other areas of effort• Develop formal coverage closure scripts • Regr mgmt, merging, results collation and display
0%
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% of effort expended
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Reviewing coverage achieved
Trying to fill coverage holes
Signing off holes
6Test and Verification Solutions 618th January 2010
Distribution of effort in code coverage
Other areas of effort• Develop formal coverage closure scripts • Regr mgmt, merging, results collation and display
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% of effort expended
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Reviewing coverage achieved
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7Test and Verification Solutions 718th January 2010
Distribution of effort in functional coverage
Other areas of effort• Writing the functional coverage • Regr mgmt, merging, resultscollation and display
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% of effort expended
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Defining functional coveragepoints
Debugging coverage holes
Reviewing coverage achieved
Trying to fill coverage holes
Signing off holes
8Test and Verification Solutions 818th January 2010
Which platforms do you use to collect your FUNCTIONAL COVERAGE in your dynamic verification flow?
Other platforms• PSL (3)• Home grown (2)• Cadence transaction explorer (TxE)
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30%
40%
50%
60%
System Verilog e Other platforms
