Architectural Profiling Tools

Processor event monitoring

Oprofile (Linux)

Locality optimizations

SLO: Suggestions for Locality Optimizations

• Clock cycles when not halted
• number of instructions retired
• number of L2 cache requests
• L2 cache demand requests from this core
• Page table walk events
• cycles divider is busy
• L1 cacheable data read operations
• Bus cycles when data is sent on the bus
• number of instruction fetch misses
• Branch predicted taken with bubble 1
• [100 more]

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