Bugfind: a tool for debugging optimizing compilers
ACM SIGPLAN Notices
Adaptive Optimizing Compilers for the 21st Century
The Journal of Supercomputing
Fast searches for effective optimization phase sequences
Proceedings of the ACM SIGPLAN 2004 conference on Programming language design and implementation
Optimizing general purpose compiler optimization
Proceedings of the 2nd conference on Computing frontiers
Pin: building customized program analysis tools with dynamic instrumentation
Proceedings of the 2005 ACM SIGPLAN conference on Programming language design and implementation
Matching execution histories of program versions
Proceedings of the 10th European software engineering conference held jointly with 13th ACM SIGSOFT international symposium on Foundations of software engineering
PerfExplorer: A Performance Data Mining Framework For Large-Scale Parallel Computing
SC '05 Proceedings of the 2005 ACM/IEEE conference on Supercomputing
Fast, automatic, procedure-level performance tuning
Proceedings of the 15th international conference on Parallel architectures and compilation techniques
Rapidly Selecting Good Compiler Optimizations using Performance Counters
Proceedings of the International Symposium on Code Generation and Optimization
A Loop Correlation Technique to Improve Performance Auditing
PACT '07 Proceedings of the 16th International Conference on Parallel Architecture and Compilation Techniques
Mining for paths in flow graphs
ICDM'10 Proceedings of the 10th industrial conference on Advances in data mining: applications and theoretical aspects
Diagnosing performance changes by comparing request flows
Proceedings of the 8th USENIX conference on Networked systems design and implementation
Hardware performance monitoring for the rest of us: a position and survey
NPC'11 Proceedings of the 8th IFIP international conference on Network and parallel computing
Mining opportunities for code improvement in a just-in-time compiler
CC'10/ETAPS'10 Proceedings of the 19th joint European conference on Theory and Practice of Software, international conference on Compiler Construction
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Compilers employ many aggressive code transformations to achieve highly optimized code. However, because of complex target architectures and unpredictable optimization interactions, these transformations may not always be beneficial. Current analysis methods measure performance at the application level and ignore optimization effects at the function and loop level. To better measure and understand these effects, we present OptiScope, a compiler independent tool to identify performance opportunities by comparing programs built with different compilers or optimization flags. The analysis includes hundreds of different metrics and uses a novel loop correlation technique for binary programs (produced from the same source by different compilers) to isolate measurements to specific regions. We present several case studies using OptiScope to identify key differences between different compiler suites, versions, and target architectures. The examples demonstrate performance improvement opportunities between 32.5\% to 893\% on select regions of SPEC 2006 benchmarks.