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Recently I learn to analyze the performance with gator+streamline, and find that, gator can collect many types of cpu events which are entirely different from those collected by linux perf tool.
Take armv7-cortex-A9 for example, gator can collect events such as:Cache:Instruction refillCache:Inst TLB refillCache:Coherency missCache:Prefetch hitsCache:Prefetch linefillsCache:TLB stallInstruction:LoadInstruction:StorePLE:Cache line rq completedPLE:Request completedStalls:Inst main TLB missStalls:Inst micro TLB miss ...
However, perf tool can collect hardware,software and hardware-cache events such as: instructions cache-references cache-misses branch-instructions OR branches branch-misses stalled-cycles-frontend OR idle-cycles-frontend stalled-cycles-backend OR idle-cycles-backend page-faults OR faults context-switches OR cs cpu-migrations OR migrations minor-faults major-faults alignment-faults L1-dcache-loads L1-dcache-load-misses L1-dcache-stores L1-dcache-store-misses L1-icache-load-misses dTLB-load-misses dTLB-store-misses iTLB-load-misses branch-loads branch-load-misses
1. Are there matchable correspondences between gator events and perf events ?
2. If not, could I collect perf events mentioned above just by gator(or an improved gator) ? I want to get more valuable hardware event data from gator.
Thank you very much !