在Linux下做性能分析3：perf - 知乎 https://zhuanlan.zhihu.com/p/22194920
Linux Perf 性能分析工具及火焰图浅析 - 知乎 https://zhuanlan.zhihu.com/p/54276509
perf record -a -g -e cycles -e cs #系统整体采样
查看指定进程
redis-server
perf report --pid 7070
mysqld
perf report --pid 5634
Samples: 25K of event ‘cs‘, Event count (approx.): 463138
Children Self Command Shared Object Symbol
0.04% 0.00% mysqld [unknown] [.] 0xffffffff83b100f0 ?
0.04% 0.00% mysqld [unknown] [.] 0xffffffff83b0fbd6 ?
0.04% 0.00% mysqld [unknown] [.] 0xffffffff83b0de8b ?
0.04% 0.00% mysqld [unknown] [.] 0xffffffff83b0d1a6 ?
0.03% 0.00% mysqld mysqld [.] os_event::wait_time_low ?
0.03% 0.00% mysqld libpthread-2.17.so;5d9ff4e7 (deleted) [.] 0x00007f23ef6b0d12 ◆
0.02% 0.00% mysqld mysqld [.] lock_wait_timeout_thread ?
0.01% 0.00% mysqld mysqld [.] thd_prepare_connection ?
0.01% 0.00% mysqld mysqld [.] check_connection ?
0.01% 0.00% mysqld mysqld [.] acl_authenticate ?
0.01% 0.00% mysqld mysqld [.] do_auth_once ?
0.01% 0.00% mysqld mysqld [.] native_password_authenticate ?
0.01% 0.00% mysqld mysqld [.] server_mpvio_read_packet ?
0.01% 0.00% mysqld mysqld [.] parse_client_handshake_packet ?
0.01% 0.00% mysqld libpthread-2.17.so;5d9ff4e7 (deleted) [.] 0x00007f23ef6b0965 ?
0.01% 0.00% mysqld mysqld [.] srv_master_thread ?
0.01% 0.00% mysqld libpthread-2.17.so;5d9ff4e7 (deleted) [.] 0x00007f23ef6b3e3d ?
0.01% 0.00% mysqld [unknown] [.] 0xffffffff83ac6d36 ?
0.01% 0.00% mysqld [unknown] [.] 0xffffffff83ac6bdb ?
0.01% 0.00% mysqld [unknown] [.] 0xffffffff84167f06 ?
0.01% 0.00% mysqld mysqld [.] buf_flush_page_cleaner_coordinator ?
0.01% 0.00% mysqld mysqld [.] sslaccept ?
0.01% 0.00% mysqld mysqld [.] yaSSL_accept ?
0.00% 0.00% mysqld mysqld [.] srv_monitor_thread ?
0.00% 0.00% mysqld libc-2.17.so;5d9ff4e7 (deleted) [.] 0x00007f23ee08a3d5 ?
0.00% 0.00% mysqld mysqld [.] mysqld_main ?
0.00% 0.00% mysqld [unknown] [.] 0xffffffff8416813d ?
0.00% 0.00% mysqld mysqld [.] srv_error_monitor_thread ?
3793a0 3793b0 g std::string::_Rep::[email protected] ?
?
Samples: 159K of event ‘cpu-clock‘, Event count (approx.): 39969500000
Children Self Command Shared Object Symbol
+ 0.72% 0.00% mysqld libpthread-2.17.so;5d9ff4e7 (deleted) [.] 0x00007f23ef6acdd5
+ 0.71% 0.00% mysqld mysqld [.] pfs_spawn_thread
+ 0.71% 0.00% mysqld mysqld [.] handle_connection
+ 0.60% 0.00% mysqld mysqld [.] thd_prepare_connection
+ 0.60% 0.00% mysqld mysqld [.] check_connection
+ 0.60% 0.00% mysqld mysqld [.] acl_authenticate
+ 0.60% 0.00% mysqld mysqld [.] do_auth_once
+ 0.60% 0.00% mysqld mysqld [.] native_password_authenticate
+ 0.60% 0.00% mysqld mysqld [.] server_mpvio_read_packet
+ 0.60% 0.00% mysqld mysqld [.] parse_client_handshake_packet
+ 0.60% 0.00% mysqld mysqld [.] sslaccept
+ 0.58% 0.00% mysqld mysqld [.] TaoCrypt::a_exp_b_mod_c
+ 0.58% 0.00% mysqld mysqld [.] TaoCrypt::AbstractRing::Exponentiate
+ 0.58% 0.00% mysqld mysqld [.] TaoCrypt::ModularArithmetic::SimultaneousExponentiate
+ 0.58% 0.00% mysqld mysqld [.] TaoCrypt::AbstractGroup::SimultaneousMultiply
+ 0.54% 0.00% mysqld mysqld [.] yaSSL_accept
0.47% 0.00% mysqld mysqld [.] yaSSL::sendServerKeyExchange
0.47% 0.00% mysqld mysqld [.] yaSSL::ServerKeyExchange::build
0.47% 0.00% mysqld mysqld [.] yaSSL::DH_Server::build
0.47% 0.00% mysqld mysqld [.] TaoCrypt::MontgomeryRepresentation::Square
0.47% 0.00% mysqld mysqld [.] TaoCrypt::RSA_PublicKey::ApplyFunction
0.47% 0.00% mysqld mysqld [.] yaSSL::RSA::sign
0.47% 0.00% mysqld mysqld [.] TaoCrypt::RSA_Encryptor<TaoCrypt::RSA_BlockType1>::Encrypt
0.36% 0.00% mysqld mysqld [.] TaoCrypt::MontgomeryReduce
0.32% 0.03% mysqld mysqld [.] TaoCrypt::RecursiveMultiply
0.27% 0.24% mysqld mysqld [.] TaoCrypt::Portable::Multiply8
0.18% 0.01% mysqld mysqld [.] TaoCrypt::RecursiveMultiplyTop
0.17% 0.01% mysqld mysqld [.] TaoCrypt::RecursiveSquare
0.15% 0.00% mysqld mysqld [.] TaoCrypt::RecursiveMultiplyBottom
0.14% 0.13% mysqld mysqld [.] TaoCrypt::Portable::Add
0.10% 0.00% mysqld mysqld [.] TaoCrypt::MontgomeryRepresentation::Multiply
0.10% 0.00% mysqld mysqld [.] do_command
0.10% 0.00% mysqld mysqld [.] TaoCrypt::AbstractRing::MultiplicativeGroupT::Accumulate
0.08% 0.00% mysqld mysqld [.] dispatch_command
0.08% 0.00% mysqld mysqld [.] yaSSL::processReply
Tip: System-wide collection from all CPUs: perf record -a
Samples: 159K of event ‘cpu-clock‘, Event count (approx.): 39969500000
Children Self Command Shared Object Symbol
0.00% 0.00% nginx [unknown] [.] 0xffffffff8417a6e8 ◆
0.00% 0.00% nginx [unknown] [.] 0xffffffff83aa13f5 ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff83a2e675 ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff8417932c ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff84175ddb ?
0.00% 0.00% nginx [unknown] [.] 0x64222c3030323a22 ?
0.00% 0.00% nginx [unknown] [.] 0x000055d5cf29c5d0 ?
0.00% 0.00% nginx [unknown] [k] 0x0000000000000019 ?
0.00% 0.00% nginx libpthread-2.17.so;5d9ff4e7 (deleted) [.] 0x00007f304e9c4680 ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff83c426af ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff83c41890 ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff83c40da3 ?
0.00% 0.00% nginx [unknown] [.] 0xffffffffc04c1322 ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff83bb8e89 ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff83bb8c12 ?
0.00% 0.00% nginx [unknown] [.] 0xffffffff83aa1075 ?
0.00% 0.00% nginx [kernel.kallsyms] [k] run_timer_softirq ?
0.00% 0.00% nginx libz.so.1.2.7 [.] 0x000000000000388e ?
0.00% 0.00% nginx libz.so.1.2.7 [.] crc32 ?
0.00% 0.00% nginx [unknown] [k] 0x000055d5cf29c6f0 ?
0.00% 0.00% nginx [unknown] [.] 0x000055d5cf1847e8 ?
0.00% 0.00% nginx libz.so.1.2.7 [.] 0x00007f304dc3688e ?
0.00% 0.00% nginx [kernel.kallsyms] [k] do_get_write_access ?
0.00% 0.00% nginx [kernel.kallsyms] [k] eth_type_trans ?
0.00% 0.00% nginx [kernel.kallsyms] [k] radix_tree_descend ?
0.00% 0.00% nginx [kernel.kallsyms] [k] copy_user_enhanced_fast_string ?
0.00% 0.00% nginx [kernel.kallsyms] [k] __x86_indirect_thunk_rax ?
0.00% 0.00% nginx [kernel.kallsyms] [k] _raw_spin_unlock_irqrestore ?
0.00% 0.00% nginx [kernel.kallsyms] [k] check_for_new_grace_period.isra.26 ?
0.00% 0.00% nginx [kernel.kallsyms] [k] __do_softirq ?
0.00% 0.00% nginx nginx [.] ngx_http_create_request ?
0.00% 0.00% nginx [kernel.kallsyms] [k] sys_epoll_ctl ?
0.00% 0.00% nginx nginx [.] 0x0000000000067287 ?
0.00% 0.00% nginx nginx [.] 0x000000000007a501 ?
0.00% 0.00% nginx libz.so.1.2.7 [.] 0x0000000000002c52
Samples: 159K of event ‘cpu-clock‘, 4000 Hz, Event count (approx.): 39969500000
TaoCrypt::Portable::Add /usr/sbin/mysqld [Percent: local period]
3.48 │ lea 0x1(%r8),%r9d ?
3.48 │ mov (%rdx,%r9,8),%rbx ?
│ _ZN8TaoCrypt5DWordplEm(): ?
3.48 │ mov %rbx,%r10 ?
2.99 │ add (%rsi,%r9,8),%r10 ?
3.48 │ add %r10,%r11 ?
4.48 │ setb %r12b ?
6.97 │ xor %eax,%eax ?
1.49 │ cmp %r10,%rbx ?
1.00 │ seta %al ?
│ _ZN8TaoCrypt8Portable3AddEPmPKmS3_j(): ?
7.96 │ add $0x2,%r8d ?
0.50 │ mov %r11,(%rdi,%r9,8) ?
│ _ZN8TaoCrypt5DWordplEm(): ?
1.99 │ add %r12,%rax ?
│ _ZN8TaoCrypt8Portable3AddEPmPKmS3_j(): ?
3.48 │ cmp %r8d,%ecx ?
│ → ja 1318f70 <TaoCrypt::Portable::Add(unsigned long*, unsigned long const*, unsigned long const*, unsigned int)+0x10> ?
0.50 │ pop %rbx ?
│ pop %r12 ?
│ pop %rbp ?
│ ← retq ?
│ DWord(): ?
│ xor %eax,%eax ?
│ ← retq ?
?
?
Samples: 159K of event ‘cpu-clock‘, 4000 Hz, Event count (approx.): 39969500000
TaoCrypt::Portable::Add /usr/sbin/mysqld [Percent: local period]
Percent│ ◆
│ ?
│ ?
│ Disassembly of section .text: ?
│ ?
│ 0000000001318f60 <TaoCrypt::Portable::Add(unsigned long*, unsigned long const*, unsigned long const*, unsigned int)>: ?
│ _ZN8TaoCrypt8Portable3AddEPmPKmS3_j(): ?
1.49 │ test %ecx,%ecx ?
│ → je 1318fd0 <TaoCrypt::Portable::Add(unsigned long*, unsigned long const*, unsigned long const*, unsigned int)+0x70> ?
│ push %rbp ?
│ DWord(): ?
│ xor %eax,%eax ?
│ _ZN8TaoCrypt8Portable3AddEPmPKmS3_j(): ?
│ xor %r8d,%r8d ?
│ mov %rsp,%rbp ?
1.49 │ push %r12 ?
3.48 │ push %rbx ?
5.47 │ mov %r8d,%r10d ?
│ _ZN8TaoCrypt5DWordplEm(): ?
1.49 │ xor %r11d,%r11d ?
│ _ZN8TaoCrypt8Portable3AddEPmPKmS3_j(): ?
1.49 │ mov (%rdx,%r10,8),%rbx ?
│ _ZN8TaoCrypt5DWordplEm(): ?
3.98 │ mov %rbx,%r9 ?
1.00 │ add (%rsi,%r10,8),%r9 ?
1.49 │ add %r9,%rax ?
3.48 │ setb %r11b ?
4.98 │ cmp %r9,%rbx ?
│ _ZN8TaoCrypt8Portable3AddEPmPKmS3_j(): ?
3.98 │ mov %rax,(%rdi,%r10,8) ?
│ _ZN8TaoCrypt5DWordplEm(): ?
5.97 │ seta %r9b ?
6.47 │ xor %r12d,%r12d ?
2.49 │ movzbl %r9b,%r9d ?
5.97 │ add %r9,%r11 ?
Press ‘h‘ for help on key bindings ?
原文地址：https://www.cnblogs.com/yuanjiangw/p/11689445.html