Esto NO es un duplicado de esta pregunta ¡¡!! La pregunta anterior no recibió una respuesta satisfactoria.
Estoy tratando de usar sample
para hacer un perfil de tiempo en un proceso de Rust llamado saample
. ¿Puede alguien ayudarme a comprender exactamente lo que está pasando?
Esto es lo que he descubierto hasta ahora en una línea como esta: 885 std::sys_common::backtrace::__rust_begin_short_backtrace::h5cb760574ede76e4 (in saample) + 10 [0x10d3556fa] backtrace.rs:125
885 - algún tipo de identificación
std::sys_common::backtrace::__rust_begin_short_backtrace::h5cb760574ede76e4
- qué función de Rust se está ejecutando
(in saample)
- donde se ejecuta esta función
+ 10
¿Creo que esto puede ser tiempo en milisegundos? Sin embargo, sumando todos los +\d
hace que el total de "milisegundos" sea de 1624, que es mucho más que 1 segundo. Esto podría ser el recuento de llamadas entonces.
[0x10d3556fa]
La dirección de la memoria
backtrace.rs:125
para la función ejecutada anteriormente.
¿El resultado de la muestra me dice algo sobre la duración o la frecuencia de las llamadas a estas funciones?
Analysis of sampling saample (pid 2561) every 1 millisecond
Process: saample [2561]
Path: /Users/USER/*/saample
Load Address: 0x10d354000
Identifier: saample
Version: 0
Code Type: X86-64
Parent Process: zsh [2467]
Date/Time: 2021-07-23 13:02:03.889 -0700
Launch Time: 2021-07-23 13:02:02.691 -0700
OS Version: Mac OS X 10.15.6 (19G2021)
Report Version: 7
Analysis Tool: /usr/bin/sample
Physical footprint: 332K
Physical footprint (peak): 332K
----
Call graph:
885 Thread_45257 DispatchQueue_1: com.apple.main-thread (serial)
885 start (in libdyld.dylib) + 1 [0x7fff715a3cc9]
885 main (in saample) + 41 [0x10d356209]
885 std::rt::lang_start_internal::h0c37a46739a0311d (in saample) + 644 [0x10d378a84] rt.rs:51
885 std::rt::lang_start::_$u7b$$u7b$closure$u7d$$u7d$::h5cdae29307de47d2 (in saample) + 12 [0x10d3554cc] rt.rs:66
885 std::sys_common::backtrace::__rust_begin_short_backtrace::h5cb760574ede76e4 (in saample) + 10 [0x10d3556fa] backtrace.rs:125
885 saample::main::he5a59bfa88e51949 (in saample) + 295 [0x10d355f17] main.rs:5
885 std::process::Command::output::h1b9edbfbdd42bee8 (in saample) + 82 [0x10d375432] process.rs:885
885 std::process::Child::wait_with_output::h7a56dcf388f23038 (in saample) + 376 [0x10d3755f8] process.rs:1689
885 poll (in libsystem_kernel.dylib) + 10 [0x7fff716eb3d6]
Total number in stack (recursive counted multiple, when >=5):
Sort by top of stack, same collapsed (when >= 5):
poll (in libsystem_kernel.dylib) 885
Binary Images:
0x10d354000 - 0x10d397fff +saample (0) <CAEBBABC-C8CE-3E86-A17A-24F047B7E157> /Users/*/saample
0x1152a7000 - 0x115338f47 dyld (750.6) <F9D4DEDC-8296-3E3F-B517-9C8B89A4C094> /usr/lib/dyld
0x7fff6e588000 - 0x7fff6e589fff libSystem.B.dylib (1281.100.1) <C0C9872A-E730-37EA-954A-3CE087C15535> /usr/lib/libSystem.B.dylib
0x7fff6e86e000 - 0x7fff6e8c0fff libc++.1.dylib (902.1) <59A8239F-C28A-3B59-B8FA-11340DC85EDC> /usr/lib/libc++.1.dylib
0x7fff6e8c1000 - 0x7fff6e8d6ffb libc++abi.dylib (902) <E692F14F-C65E-303B-9921-BB7E97D77855> /usr/lib/libc++abi.dylib
0x7fff6e8d7000 - 0x7fff6e8d7fff libcharset.1.dylib (59) <72447768-9244-39AB-8E79-2FA14EC0AD33> /usr/lib/libcharset.1.dylib
0x7fff6f361000 - 0x7fff6f451fff libiconv.2.dylib (59) <18311A67-E4EF-3CC7-95B3-C0EDEE3A282F> /usr/lib/libiconv.2.dylib
0x7fff703e8000 - 0x7fff7041bfde libobjc.A.dylib (787.1) <6DF81160-5E7F-3E31-AA1E-C875E3B98AF6> /usr/lib/libobjc.A.dylib
0x7fff704ef000 - 0x7fff70507fff libresolv.9.dylib (67.40.1) <C57EDFEF-D36A-310B-8D14-8C68A625B1E8> /usr/lib/libresolv.9.dylib
0x7fff71385000 - 0x7fff7138aff3 libcache.dylib (83) <AF488D13-9E89-35E0-B078-BE37CC5B8586> /usr/lib/system/libcache.dylib
0x7fff7138b000 - 0x7fff71396fff libcommonCrypto.dylib (60165.120.1) <C7912BE5-993E-3581-B2A0-6AABDC8C5562> /usr/lib/system/libcommonCrypto.dylib
0x7fff71397000 - 0x7fff7139efff libcompiler_rt.dylib (101.2) <49B8F644-5705-3F16-BBE0-6FFF9B17C36E> /usr/lib/system/libcompiler_rt.dylib
0x7fff7139f000 - 0x7fff713a8ff7 libcopyfile.dylib (166.40.1) <3C481225-21E7-370A-A30E-0CCFDD64A92C> /usr/lib/system/libcopyfile.dylib
0x7fff713a9000 - 0x7fff7143bfdb libcorecrypto.dylib (866.140.1) <60567BF8-80FA-359A-B2F3-A3BAEFB288FD> /usr/lib/system/libcorecrypto.dylib
0x7fff71548000 - 0x7fff71588ff0 libdispatch.dylib (1173.100.2) <CD9C059C-91D9-30E8-8926-5B9CD0D5D4F5> /usr/lib/system/libdispatch.dylib
0x7fff71589000 - 0x7fff715bffff libdyld.dylib (750.6) <789A18C2-8AC7-3C88-813D-CD674376585D> /usr/lib/system/libdyld.dylib
0x7fff715c0000 - 0x7fff715c0ffb libkeymgr.dylib (30) <DB3337BE-01CA-3425-BD0C-87774FC0CDC0> /usr/lib/system/libkeymgr.dylib
0x7fff715ce000 - 0x7fff715ceff7 liblaunch.dylib (1738.140.1) <AFBCBDD3-0B55-3ECD-8E04-A73A3A57356B> /usr/lib/system/liblaunch.dylib
0x7fff715cf000 - 0x7fff715d4ff7 libmacho.dylib (959.0.1) <AA613A9C-961A-3B67-B696-4622FA59FC4E> /usr/lib/system/libmacho.dylib
0x7fff715d5000 - 0x7fff715d7ff3 libquarantine.dylib (110.40.3) <F234E51D-FD0B-3EE4-B679-AE3EE9C536C3> /usr/lib/system/libquarantine.dylib
0x7fff715d8000 - 0x7fff715d9ff7 libremovefile.dylib (48) <7C7EFC79-BD24-33EF-B073-06AED234593E> /usr/lib/system/libremovefile.dylib
0x7fff715da000 - 0x7fff715f1ff3 libsystem_asl.dylib (377.60.2) <1563EE02-0657-3B78-99BE-A947C24122EF> /usr/lib/system/libsystem_asl.dylib
0x7fff715f2000 - 0x7fff715f2ff7 libsystem_blocks.dylib (74) <0D53847E-AF5F-3ACF-B51F-A15DEA4DEC58> /usr/lib/system/libsystem_blocks.dylib
0x7fff715f3000 - 0x7fff7167afff libsystem_c.dylib (1353.100.2) <BBDED5E6-A646-3EED-B33A-91E4331EA063> /usr/lib/system/libsystem_c.dylib
0x7fff7167b000 - 0x7fff7167effb libsystem_configuration.dylib (1061.141.1) <0EE84C33-64FD-372B-974A-AF7A136F2068> /usr/lib/system/libsystem_configuration.dylib
0x7fff7167f000 - 0x7fff71682fff libsystem_coreservices.dylib (114) <A199156E-058D-3ABB-BCE9-4B9F20DCED0F> /usr/lib/system/libsystem_coreservices.dylib
0x7fff71683000 - 0x7fff7168bfff libsystem_darwin.dylib (1353.100.2) <5B12B5DB-3F30-37C1-8ECC-49A66B1F2864> /usr/lib/system/libsystem_darwin.dylib
0x7fff7168c000 - 0x7fff71693fff libsystem_dnssd.dylib (1096.100.3) <EBB4C2C2-E031-3094-B40A-E67BF261D295> /usr/lib/system/libsystem_dnssd.dylib
0x7fff71694000 - 0x7fff71695ffb libsystem_featureflags.dylib (17) <29FD922A-EC2C-3F25-BCCC-B58D716E60EC> /usr/lib/system/libsystem_featureflags.dylib
0x7fff71696000 - 0x7fff716e3ff7 libsystem_info.dylib (538) <8A321605-5480-330B-AF9E-64E65DE61747> /usr/lib/system/libsystem_info.dylib
0x7fff716e4000 - 0x7fff71710ff7 libsystem_kernel.dylib (6153.141.1) <2B6311E6-6240-3EF7-8C87-475B66F7452C> /usr/lib/system/libsystem_kernel.dylib
0x7fff71711000 - 0x7fff71758fff libsystem_m.dylib (3178) <00F331F1-0D09-39B3-8736-1FE90E64E903> /usr/lib/system/libsystem_m.dylib
0x7fff71759000 - 0x7fff71780fff libsystem_malloc.dylib (283.100.6) <8549294E-4C53-36EB-99F3-584A7393D8D5> /usr/lib/system/libsystem_malloc.dylib
0x7fff71781000 - 0x7fff7178effb libsystem_networkextension.dylib (1095.140.2) <F06C65C5-2CBE-313C-96E1-A09240F9FE57> /usr/lib/system/libsystem_networkextension.dylib
0x7fff7178f000 - 0x7fff71798ff7 libsystem_notify.dylib (241.100.2) <FA22F928-D91B-3AA5-96BB-3186AC0FB264> /usr/lib/system/libsystem_notify.dylib
0x7fff71799000 - 0x7fff717a1fef libsystem_platform.dylib (220.100.1) <009A7C1F-313A-318E-B9F2-30F4C06FEA5C> /usr/lib/system/libsystem_platform.dylib
0x7fff717a2000 - 0x7fff717acfff libsystem_pthread.dylib (416.100.3) <62CB1A98-0B8F-31E7-A02B-A1139927F61D> /usr/lib/system/libsystem_pthread.dylib
0x7fff717ad000 - 0x7fff717b1ff3 libsystem_sandbox.dylib (1217.141.1) <6DE13684-5A67-3009-A53A-C9086CF241C3> /usr/lib/system/libsystem_sandbox.dylib
0x7fff717b2000 - 0x7fff717b4fff libsystem_secinit.dylib (62.100.2) <F80872AA-E1FD-3D7E-8729-467656EC6561> /usr/lib/system/libsystem_secinit.dylib
0x7fff717b5000 - 0x7fff717bcffb libsystem_symptoms.dylib (1238.120.1) <5820A2AF-CE72-3AB3-ABCC-273A3419FB55> /usr/lib/system/libsystem_symptoms.dylib
0x7fff717bd000 - 0x7fff717d3ff2 libsystem_trace.dylib (1147.120) <04B47629-847B-3D74-8ABE-C05EF9DEEFE4> /usr/lib/system/libsystem_trace.dylib
0x7fff717d5000 - 0x7fff717daff7 libunwind.dylib (35.4) <42B7B509-BAFE-365B-893A-72414C92F5BF> /usr/lib/system/libunwind.dylib
0x7fff717db000 - 0x7fff71810ffe libxpc.dylib (1738.140.1) <3E243A41-030F-38E3-9FD2-7B38C66C35B1> /usr/lib/system/libxpc.dylib