perf/Documentation/intel-hybrid.txt

2 --------------------
17 0-15
20 16-23
22 It indicates cpu0-cpu15 are core cpus and cpu16-cpu23 are atom cpus.
24 As before, use perf-list to list the symbolic event.
29 	[Fixed Counter: Counts the number of instructions retired. Unit: cpu_atom]
31 	[Number of instructions retired. Fixed Counter - architectural event. Unit: cpu_core]
47 	perf stat -e cpu_core/cycles/
56 For hardware events, they have pre-defined configs (e.g. 0 for cycles).
66 The new attr.config layout for PERF_TYPE_HARDWARE:
75 The new attr.config layout for PERF_TYPE_HW_CACHE:
84 perf stat -e cycles -a (use system-wide in this example), two events
87   ------------------------------------------------------------
96   ------------------------------------------------------------
100   ------------------------------------------------------------
109   ------------------------------------------------------------
115 The kernel creates 'cycles' (0x400000000) on cpu0-cpu15 (core cpus),
116 and create 'cycles' (0x800000000) on cpu16-cpu23 (atom cpus).
118 For perf-stat result, it displays two events:
129 perf-stat reports the scaled counts for hybrid event and with a percentage
135 perf stat -e cycles \-- taskset -c 16 ./triad_loop
139 ------------------------------------------------------------
149 ------------------------------------------------------------
153 ------------------------------------------------------------
163 ------------------------------------------------------------
165  Performance counter stats for 'taskset -c 16 ./triad_loop':
170 perf-record:
172 If there is no '-e' specified in perf record, on hybrid platform,
176 perf-stat:
178 If there is no '-e' specified in perf stat, on hybrid platform,
188 cpu_core/branch-misses/,
189 cpu_atom/branch-misses/
191 Of course, both perf-stat and perf-record support to enable
195 perf stat -e cpu_core/cycles/
196 perf stat -e cpu_atom/cycles/
197 perf stat -e cpu_core/r1a/
198 perf stat -e cpu_atom/L1-icache-loads/
199 perf stat -e cpu_core/cycles/,cpu_atom/instructions/
200 perf stat -e '{cpu_core/cycles/,cpu_core/instructions/}'