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@loderunner
loderunner / 01-mac-profiling.md
Last active December 4, 2024 19:33
Profiling an application in Mac OS X

Profiling an application in Mac OS X

Finding which process to profile

If your system is running slowly, perhaps a process is using too much CPU time and won't let other processes run smoothly. To find out which processes are taking up a lot of CPU time, you can use Apple's Activity Monitor.

The CPU pane shows how processes are affecting CPU (processor) activity:

@kwk
kwk / Makefile
Last active March 17, 2024 22:54
Compiling with Address Sanitizer (ASAN) with CLANG and with GCC-4.8
.PHONY: using-gcc using-gcc-static using-clang
using-gcc:
g++-4.8 -o main-gcc -lasan -O -g -fsanitize=address -fno-omit-frame-pointer main.cpp && \
ASAN_OPTIONS=symbolize=1 ASAN_SYMBOLIZER_PATH=$(shell which llvm-symbolizer) ./main-gcc
using-gcc-static:
g++-4.8 -o main-gcc-static -static-libstdc++ -static-libasan -O -g -fsanitize=address -fno-omit-frame-pointer main.cpp && \
ASAN_OPTIONS=symbolize=1 ASAN_SYMBOLIZER_PATH=$(shell which llvm-symbolizer) ./main-gcc-static
@johnhunter
johnhunter / gist:3333533
Created August 12, 2012 18:14
Git configs for a submodule with sparse-checkout filtering
Assuming you have created a submodule 'mysub' in repo 'myrepo'
Set the sparse checkout config property in the submodule
myrepo/.git/modules/mysub/config:
[core]
repositoryformatversion = 0
filemode = true
bare = false
@wycats
wycats / gist:1627976
Created January 17, 2012 18:26
How to debug dynamic loading
export DYLD_PRINT_OPTS="1"
export DYLD_PRINT_ENV="1"
export DYLD_PRINT_LIBRARIES="1"
export DYLD_PRINT_LIBRARIES_POST_LAUNCH="1"
export DYLD_PRINT_APIS="1"
export DYLD_PRINT_BINDINGS="1"
export DYLD_PRINT_INITIALIZERS="1"
export DYLD_PRINT_REBASINGS="1"
export DYLD_PRINT_SEGMENTS="1"
export DYLD_PRINT_STATISTICS="1"
@s4y
s4y / LICENSE.md
Created August 26, 2011 17:11
For Mac OS X: Get a list of running processes, and tell if a particular process is running, by name

Copyright (c) 2010 DeepTech, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE O