Chen Yufei cyfdecyf
cyfdecyf
/ link-duplicates.rb
Last active
March 30, 2018 08:41
Find duplicate files between two directories and use hardlink to keep only one copy.
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| #!/usr/bin/env ruby | |
| # Find duplicate files in specified directories and files and use | |
| # hardlink to keep only one copy. | |
| require 'digest' | |
| if ARGV.length < 1 | |
| name = `basename #{__FILE__}` | |
| puts "Usage: #{name.chomp} <path1> [path2 ...]" |
cyfdecyf
/ how-to-install-dpdk-on-ubuntu.sh
Last active
August 29, 2015 14:06
— forked from ConradIrwin/how-to-install-dpdk-on-ubuntu.sh
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| # If you're looking into the C10M problem (10 million concurrent connections) | |
| # you might want to play with DPDK (Originally proprietry Intel, now open source) | |
| # | |
| # C10M: http://c10m.robertgraham.com/ | |
| # DPDK: http://dpdk.org/ | |
| # | |
| # This is a quick summary how to install dpdk on ubuntu | |
| # running inside virtualbox on a mac | |
| # On my Mac: |
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| package main | |
| /* | |
| Observe different behavior of net.Listener.Accept on Linux and OS X. | |
| Steps: | |
| 1. Build this program on Linux or OS X. | |
| 2. Execute "ulimit -Sn 5" to limit the number of open file. (You may need to | |
| change the number to 6 or other values.) |
cyfdecyf
/ extract-link-url.rb
Last active
December 31, 2015 12:29
Extract all link from Stanford CS 193P iTunes U feed.
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| require 'nokogiri' | |
| require 'open-uri' | |
| doc = Nokogiri::XML(open('https://itunesu.itunes.apple.com/WebObjects/LZDirectory.woa/ra/directory/courses/733644550/feed')) | |
| doc.css('entry').each do |e| | |
| title = e.css('title').first.text | |
| link = e.css('link').first.attributes["href"].value | |
| puts title | |
| puts link |
cyfdecyf
/ extract-cmd.sh
Last active
December 29, 2015 03:59
Script to run and collect ROI (region of interest) time for the PARSEC benchmark.
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| #!/bin/bash | |
| # Extract parsec benchmark run command. | |
| APPS="blackscholes bodytrack canneal swaptions fluidanimate" | |
| # Number of threads to run. | |
| NTHR="2 4" | |
| # Output file | |
| OUTPUT=cmd | |
| # Specify input data set. |
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| [DEBUG] 2013/07/28 12:45:38 cli(127.0.0.1:53365) connected, total 1 clients | |
| [>>>>>] 2013/07/28 12:45:38 cli(127.0.0.1:53365) request GET www.taobao.com:80/ | |
| [DEBUG] 2013/07/28 12:45:39 cli(127.0.0.1:53365) connected to www.taobao.com:80 1 concurrent connections | |
| [<<<<<] 2013/07/28 12:45:39 cli(127.0.0.1:53365) response GET www.taobao.com:80/ 200 OK | |
| [DEBUG] 2013/07/28 12:45:39 cli(127.0.0.1:53365) close idle connections, remains 1 | |
| [DEBUG] 2013/07/28 12:45:39 cli(127.0.0.1:53367) connected, total 2 clients | |
| [DEBUG] 2013/07/28 12:45:39 cli(127.0.0.1:53368) connected, total 3 clients | |
| [DEBUG] 2013/07/28 12:45:39 cli(127.0.0.1:53369) connected, total 4 clients | |
| [>>>>>] 2013/07/28 12:45:39 cli(127.0.0.1:53367) request GET g.tbcdn.cn:80/??tb/global/1.0.5/global-min.css,tb/fp/1.1.4/first-screen-min.css,tb/fp/1.1.4/second-screen-min.css?t=20130711 | |
| [>>>>>] 2013/07/28 12:45:39 cli(127.0.0.1:53368) request GET g.tbcdn.cn:80/??tb/conve/0.0.5/common-min.css,tcc/tbr/1.0.18/tbr/common.css,tcc/tbr/1.0.18/tbr/widget/phone/phone. |
cyfdecyf
/ atomic-assignment-test.go
Last active
December 18, 2015 11:59
Test if Go's assignment is atomic
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| package main | |
| import ( | |
| "fmt" | |
| "runtime" | |
| ) | |
| func main() { | |
| var ( | |
| k string // do assignment and read to this variable |
cyfdecyf
/ change-slides-font.vb
Created
April 17, 2013 08:59
Change font for all slides in powerpoint.
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| Sub textspace() | |
| Dim slide As slide | |
| Dim shape As shape | |
| Dim text As TextRange2 | |
| For Each slide In ActivePresentation.Slides | |
| For Each shape In slide.Shapes | |
| If shape.HasTextFrame Then | |
| Set text = shape.TextFrame2.TextRange | |
| If Not IsNull(text) Then |
cyfdecyf
/ lockvschan_test.go
Last active
July 5, 2023 16:40
Performance test: mutex vs. channel in Go
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| // run with go test -test.bench Bench | |
| package main | |
| import ( | |
| // "fmt" | |
| "runtime" | |
| "sync" | |
| "sync/atomic" | |
| "testing" |
cyfdecyf
/ gist:2005310
Created
March 9, 2012 06:16
— forked from dx7/gist:1333785
Installing ruby-debug with ruby-1.9.3-p0
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| # Install with: | |
| # bash < <(curl -L https://raw.github.com/gist/2005310) | |
| # | |
| # Reference: http://blog.wyeworks.com/2011/11/1/ruby-1-9-3-and-ruby-debug | |
| echo "Installing ruby-debug with ruby-1.9.3-p0 ..." | |
| curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem | |
| curl -OL http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem |