Lines Matching full:perf
1 perf-amd-ibs(1)
6 perf-amd-ibs - Support for AMD Instruction-Based Sampling (IBS) with perf tool
11 'perf record' -e ibs_op//
12 'perf record' -e ibs_fetch//
27 using the Linux perf utility. The following files will be created at boot time
44 (sample was generated at IP X but perf would record it at IP X+n). Hence,
66 # perf record -e ibs_op// -c 100000 -a
70 # perf record -e ibs_op// -c 100000 -C 10
74 # perf record -e ibs_op// -F 1000 -C 10
78 # perf record -e ibs_op/cnt_ctl=1/ -c 100000 -a
80 Same command, but also capture IBS register raw dump along with perf sample:
82 # perf record -e ibs_op/cnt_ctl=1/ -c 100000 -a --raw-samples
86 # perf record -e ibs_op/cnt_ctl=1,l3missonly=1/ -c 100000 -a
90 # perf record -e ibs_op/cnt_ctl=1/ -c 100000 -p 1234
94 # perf record -e ibs_op/cnt_ctl=1/ -c 100000 -- ls
98 # perf report
103 # perf script
107 # perf report -D
131 using perf helped in identifying exact cause of the problem:
142 # perf record -e ibs_fetch// -c 100000 -a
146 # perf record -e ibs_fetch/rand_en=1/ -c 100000 -a
154 PERF MEM AND PERF C2C
157 perf mem is a memory access profiler tool and perf c2c is a shared data
159 Below is a simple example of the perf mem tool.
161 # perf mem record -c 100000 -- make
162 # perf mem report
164 A normal perf mem report output will provide detailed memory access profile.
167 # perf mem report -F mem,sample,snoop
188 linkperf:perf-record[1], linkperf:perf-script[1], linkperf:perf-report[1],
189 linkperf:perf-mem[1], linkperf:perf-c2c[1]