perf annotate: Use the default annotation options for --stdio2
With an empty '[annotate]' section in ~/.perfconfig: # perf record -a --all-kernel -e '{cycles,instructions}:P' sleep 5 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 2.243 MB perf.data (5513 samples) ] # perf annotate --stdio2 _raw_spin_lock | head -20 Disassembly of section .text: ffffffff81868790 <_raw_spin_lock>: _raw_spin_lock(): EXPORT_SYMBOL(_raw_spin_trylock_bh); #endif #ifndef CONFIG_INLINE_SPIN_LOCK void __lockfunc _raw_spin_lock(raw_spinlock_t *lock) { → callq __fentry__ atomic_cmpxchg(): return xadd(&v->counter, -i); } static __always_inline int atomic_cmpxchg(atomic_t *v, int old, int new) { # perf annotate --stdio2 _raw_spin_lock | head -20 → callq __fentry__ xor %eax,%eax mov $0x1,%edx 87.50 100.00 lock cmpxchg %edx,(%rdi) 6.25 0.00 test %eax,%eax ↓ jne 16 6.25 0.00 repz retq 16: mov %eax,%esi ↑ jmpq ffffffff810e96b0 <queued_spin_lock_slowpath> # # cat ~/.perfconfig [annotate] hide_src_code = false show_linenr = true # perf annotate --stdio2 _raw_spin_lock | head -20 3 Disassembly of section .text: 5 ffffffff81868790 <_raw_spin_lock>: 6 _raw_spin_lock(): 143 EXPORT_SYMBOL(_raw_spin_trylock_bh); 144 #endif 146 #ifndef CONFIG_INLINE_SPIN_LOCK 147 void __lockfunc _raw_spin_lock(raw_spinlock_t *lock) 148 { → callq __fentry__ 150 atomic_cmpxchg(): 187 return xadd(&v->counter, -i); 188 } 190 static __always_inline int atomic_cmpxchg(atomic_t *v, int old, int new) 191 { # # cat ~/.perfconfig [annotate] hide_src_code = true show_total_period = true # perf annotate --stdio2 _raw_spin_lock | head -20 → callq __fentry__ xor %eax,%eax mov $0x1,%edx 1411316 152339 lock cmpxchg %edx,(%rdi) 344694 0 test %eax,%eax ↓ jne 16 80806 0 repz retq 16: mov %eax,%esi ↑ jmpq ffffffff810e96b0 <queued_spin_lock_slowpath> # Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-nu4rxg5zkdtgs1b2gc40p7v7@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Showing
想要评论请 注册 或 登录