Hi,
I am interested in AutoFDO and learing the following tutorial.
https://gcc.gnu.org/wiki/AutoFDO/Tutorial
When I come to AutoFDO phase1, I meet the following error.
``
% ocperf.py record -b -e br_inst_retired.near_taken:pp -- ./sort
Downloading https://download.01.org/perfmon/mapfile.csv to mapfile.csv
Downloading https://download.01.org/perfmon/readme.txt to readme.txt
Do not recognize CPU or cannot find CPU map file.
perf record -b -e br_inst_retired.near_taken:pp -- ./sort
event syntax error: '...near_taken:pp'
\___ parser error
Run 'perf list' for a list of valid events
Usage: perf record [<options>] [<command>]
or: perf record [<options>] -- <command> [<options>]
-e, --event <event> event selector. use 'perf list' to list
available events
``
According to the above message, I run 'perf list',but I cannot see
br_blabla in the list.
``
branch-instructions OR branches [Hardware event]
branch-misses [Hardware event]
cache-misses [Hardware event]
cache-references [Hardware event]
cpu-cycles OR cycles [Hardware event]
instructions [Hardware event]
stalled-cycles-backend OR idle-cycles-backend [Hardware event]
stalled-cycles-frontend OR idle-cycles-frontend [Hardware event]
alignment-faults [Software event]
bpf-output [Software event]
context-switches OR cs [Software event]
cpu-clock [Software event]
cpu-migrations OR migrations [Software event]
dummy [Software event]
emulation-faults [Software event]
major-faults [Software event]
minor-faults [Software event]
page-faults OR faults [Software event]
task-clock [Software event]
L1-dcache-load-misses [Hardware cache event]
L1-dcache-loads [Hardware cache event]
L1-dcache-prefetch-misses [Hardware cache event]
L1-dcache-prefetches [Hardware cache event]
L1-icache-load-misses [Hardware cache event]
L1-icache-loads [Hardware cache event]
L1-icache-prefetches [Hardware cache event]
LLC-load-misses [Hardware cache event]
LLC-loads [Hardware cache event]
LLC-stores [Hardware cache event]
branch-load-misses [Hardware cache event]
branch-loads [Hardware cache event]
dTLB-load-misses [Hardware cache event]
dTLB-loads [Hardware cache event]
iTLB-load-misses [Hardware cache event]
iTLB-loads [Hardware cache event]
node-load-misses [Hardware cache event]
node-loads [Hardware cache event]
branch-instructions OR cpu/branch-instructions/ [Kernel PMU event]
branch-misses OR cpu/branch-misses/ [Kernel PMU event]
cache-misses OR cpu/cache-misses/ [Kernel PMU event]
cache-references OR cpu/cache-references/ [Kernel PMU event]
cpu-cycles OR cpu/cpu-cycles/ [Kernel PMU event]
instructions OR cpu/instructions/ [Kernel PMU event]
msr/aperf/ [Kernel PMU event]
msr/mperf/ [Kernel PMU event]
msr/ptsc/ [Kernel PMU event]
msr/tsc/ [Kernel PMU event]
stalled-cycles-backend OR cpu/stalled-cycles-backend/ [Kernel PMU event]
stalled-cycles-frontend OR cpu/stalled-cycles-frontend/ [Kernel PMU event]
rNNN [Raw hardware
event descriptor]
cpu/t1=v1[,t2=v2,t3 ...]/modifier [Raw hardware
event descriptor]
mem:<addr>[/len][:access] [Hardware breakpoint]
``
I doubt,
- the event name is something old?
- I miss something in kernel .config file to catch the event?
I am testing it with Linux-4.7.2 and GCC-7-20170525.
Regards,
Nobutarou
