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:
| package main | |
| import ( | |
| "crypto/rand" | |
| "flag" | |
| "log" | |
| mrand "math/rand" | |
| "net" | |
| "os" | |
| "os/signal" |
| #!/bin/sh | |
| # Generate test coverage statistics for Go packages. | |
| # | |
| # Works around the fact that `go test -coverprofile` currently does not work | |
| # with multiple packages, see https://code.google.com/p/go/issues/detail?id=6909 | |
| # | |
| # Usage: script/coverage [--html|--coveralls] | |
| # | |
| # --html Additionally create HTML report and open it in browser | |
| # --coveralls Push coverage statistics to coveralls.io |
| import cProfile | |
| def profile_this(fn): | |
| def profiled_fn(*args, **kwargs): | |
| # name for profile dump | |
| fpath = fn.__name__ + '.profile' | |
| prof = cProfile.Profile() | |
| ret = prof.runcall(fn, *args, **kwargs) | |
| prof.dump_stats(fpath) |
| #include <clang-c/Index.h> | |
| #include <cstdlib> | |
| #include <iostream> | |
| /* | |
| * Compile with: | |
| * g++ complete.cc -o complete -lclang -L/usr/lib/llvm | |
| * Run with: | |
| * LIBCLANG_TIMING=1 ./complete file.cc line column [clang args...] | |
| */ |
| DhyveOS | DockerRoot | RancherOS | Boot2Docker | Hyper on Mac (*7) | |
|---|---|---|---|---|---|
| Version | 2.0.0 | 1.2.8 | 0.4.2 | 1.9.1 | 0.4.0 |
| Size | 12 MB | 13.7 MB | 29 MB | 30 MB | 4.6 MB |
| Kernel | 4.3.3 | 4.3.3 | 4.2.3 | 4.1.13 | 4.0.4 |
| User Land | Buildroot(uClibc) + BusyBox v1.24.1 | Buildroot(GLIBC) + BusyBox v1.24.1 | Buildroot(GLIBC) + BusyBox v1.23.2 | Tiny Core Linux v6.4.1 | - |
| Docker | 1.9.1 | 1.9.1 | 1.9.1 | 1.9.1 | - |
| Storage Driver | btrfs | overlay | overlay (*2) | aufs (*2) | VDI |
| TLS | - | (*9) | ✓ | ✓ | - |
| Vagrant box | - | ✓ | (v0.4.1) | (*3) | - |
| #include <iostream> | |
| void setBackground(unsigned r, unsigned g, unsigned b) | |
| { | |
| std::cout << "\x1b[48;2;" << r << ';' << g << ';' << b << 'm'; | |
| } | |
| int main() | |
| { | |
| int point[4][3] = { {255,0,0}, |
| package main | |
| import ( | |
| "flag" | |
| "fmt" | |
| "log" | |
| "os" | |
| "os/exec" | |
| "os/signal" | |
| "syscall" |
| #!/usr/bin/env ruby | |
| class VimColorscheme | |
| attr_accessor :file_path | |
| def initialize(file_path) | |
| @file_path = file_path | |
| end | |
| def extract_colors |
| package main | |
| /* | |
| Go のインタフェース設計 | |
| 参考 | |
| https://code.google.com/p/go-wiki/wiki/GoForCPPProgrammers | |
| http://jordanorelli.tumblr.com/post/32665860244/how-to-use-interfaces-in-go | |
| http://research.swtch.com/interfaces | |
| http://www.airs.com/blog/archives/277 |
