> > > > % perf stat -a -I 1000 --metric-only > > 1.001452803 frontend cycles idle insn per cycle stalled cycles > > per insn branch-misses of all branches > > where does 'frontend' collumn come from? > can't see it in the code or get it in output..
It comes from the shadow stats. All the columns are collected from there. Probably your CPU doesn't implement it. I try to hide it when it's not supported. -Andi