Displaying 1 result from an estimated 1 matches for "perf2bolt".
2020 Apr 08
3
Error with perf2bolt in LLVM BOLT
...VM BOLT and generated profile data using
Linux perf using the following:
perf record -e cycles:u -o perf.data <command>
This is without the use of LBR so I understand the performance improvements
may not be much but this was more for becoming familiar with BOLT's
commands.
I then run:
perf2bolt -nl -p perf.data -o perf.fdata <binary>
and I get the following:
PERF2BOLT: Starting data aggregation job for perf.data
PERF2BOLT: spawning perf job to read events without LBR
PERF2BOLT: spawning perf job to read mem events
PERF2BOLT: spawning perf job to read process events
PERF2BOLT: spaw...