Gprof shared library

Author: aapm

August undefined, 2024

WebJul 25, 2016 · I want to do profiling on a C++ executable which uses a shared library. gprof can't profile the functions in the shared library and I don't have sprof. Is there a way to copy all functions from the shared library to the executable and run it with gprof. WebJun 6, 2012 · shared-libraries ld libc dlopen sprof Share Improve this question Follow asked Jun 2, 2011 at 15:56 Edward 1,786 1 15 33 3 As far as I can tell, it's a bug in glibc, it shows up if you google RT_CONSISTENT and look at all the redhat bugzilla entries. I'm using oprofile instead now. – Matthew Smith Oct 5, 2011 at 5:10

C++音视频编程探秘_泡沫o0的博客-CSDN博客

WebFeb 20, 2024 · Gprof has many limitations, as can be seen at inaccuracy in gprof output. The real problem is either that the time is spent in I/O, has a complicated mutual recursion, in a shared library, or it tries to reuse the same signals that gprof uses to sample the code. Web"Gprof" reads the given object file (the default is "a.out") and establishes the relation between its symbol table and the call graph profile from gmon.out. If more than one … bargarh population

Using Gprof for Performance Analysis - HECC Knowledge Base

WebOct 18, 2005 · have problems with the calls to the symbols that are in shared library, does not leave anything these symbols. Everything is compiled with -pg-g. Where is the … WebThe sprof command displays a profiling summary for the shared object (shared library) specified as its first command-line argument. The profiling summary is created using previously generated profiling data in the (optional) second command-line argument. If the profiling data pathname is omitted, then sprof will attempt to deduce it using the ... WebOct 26, 2016 · gprof won't work, you need to use sprof instead. I found these links helpful: How to use sprof? http://greg-n-blog.blogspot.com/2010/01/profiling-shared-library-on … suzanne valadon black venus

gprof(1) (man pages section 1: User Commands) - Oracle

GPROF profiling tool is inaccurate execution time

WebBecause the time spent in a shared object cannot be accounted for, the use of shared objects should be minimized whenever a program is profiled with gprof. If desired, the … WebMar 14, 2024 · To enable profiling with Gprof, add one of the options shown below when you compile your code: With Intel compilers, add the -p option (alternatively you can add -pg, which is deprecated, but still works). With PGI compilers, add the -pg option. With GNU compilers, add the -pg option. You might also have to use the -O0 option, if you do not … bargarh recipeWebThis compiler-generated mechanism of profiling is also built on top of profil (2). One of the most powerful features of this profiling mechanism is to enable the analysis of a shared … bargarh odisha train

"WebC:\Users\panda>nvcc --help Usage : nvcc [opt... " - Gprof shared library

Gprof shared library

shared libraries - What is causing sprof to complain about ...

WebSupport for gprof profiling of shared libraries is available both on 32-bit and 64-bit Itanium-based systems. On PA-RISC systems only 32-bit shared library profiling is supported. On Itanium-based systems The environment variable LD_PROFILE determines what load modules get profiled. WebUsing Gprof is a simple three or four step process, as shown below. 1. First, compile/link your application as you normally would, but be sure to include the -pg flag. Note that if …

Did you know?

WebOn PA-RISC systems, gprof supports single shared library profiling. For details on this see the section below, Shared Library Profiling . The symbol table for the load modules being profiled are read and correlated with the call graph profile file ( gmon.out ). WebNov 22, 2009 · gprof embodies certain myths about performance, such as: that program counter sampling is useful. It is only useful if you have an unnecessary hotspot bottleneck such as a bubble sort of a big array of scalar values.

WebThe -i option causes gprof to display summary information about the profile data file (s) and then exit. The number of histogram, call graph, and basic-block count records is displayed. -I dirs. --directory-path=dirs. The -I option specifies a … WebThe LD_PROFILE environment variable specifies the name of a shared object to profile. You can analyze a single shared object using this environment variable. The setting of the environment variable can be used to analyze the use …

WebNov 25, 2024 · Using gprof 2.28 and gcc 6.3.0 in Ubuntu 17.04 on a variety of sample programs I get empty output for every category. If I run gprof -i on one example program I get: 1 histogram record 2 call-graph records 0 basic-block count records. My compilation looks something like this: cc -g -c sem_test.c -pg cc -o sem_test sem_test.o -lpthread -pg. WebThis manual describes the GNU profiler, gprof, and how you can use it to determine which parts of a program are taking most of the execution time. We assume that you know how …

WebApr 5, 2016 · Here are the source files for both projects: MyLib.h - This is the main include file for clients to reference functions in the library #ifndef MYLIB_H #define MYLIB_H #include "libexport.h" #include "TestClass.h" #endif /* MYLIB_H */ libexport.h - Pretty generic file to define import/export keywords

WebOct 18, 2005 · Gprof problem with dynamic library AlvaroMako Hello: I am using g++, on linux, and i am trying profile out my program but I have problems with the calls to the symbols that are in shared library, does not leave anything these symbols. Everything is compiled with -pg -g. Where is the problem? Gprof works with the dynamic librarys ??? … suzanne valadon biographyWebApr 13, 2024 · GCC 是 GNU项目的一个产品。GCC（GNU Compiler Collection，GNU编译程序集合）是最重要的开放源码软件。其他所有开放源码软件都在某种层次上依赖于它。甚至其他语言，例如 Python，都是由 C 语言开发的，由 GNU 编译程序编译的。这个软件对于整个自由软件运动而言具有根本性的意义。 bargarh spWebGprof and shared libraries. I've a larger project that consists of several shared libraries. The compilation is done by autoconf and automake. One of the libraries. seems to be slow so I would like to profile it. My idea was to use gprof. (I'm using gcc 3.4.6). First, I modified the Makefiles so that each library. is built with the flags "-g -pg". suzanne vega dna - tom's diner