dale.hagglund + article   70

The Usability of Passwords (by @baekdal) #tips
Security companies and IT people constantly tells us that we should use complex and difficult passwords. This is bad advice, because you can actually make usable, easy to remember and highly secure passwords. In fact, usable passwords are often far better than complex ones.

So let's dive into the world of passwords, and look at what makes a password secure in practical terms.
password  usability  computer  security  article  phrase  attack 
may 2011 by dale.hagglund
Is Parallel Programming Hard, And, If So, What Can You Do About It?
"The purpose of this book is to help you under-stand how to program shared-memory parallel ma-chines without risking your sanity. By describingthe algorithms and designs that have worked well inthe past, we hope to help you avoid at least someof the pitfalls that have beset parallel projects."
concurrency  parallel  multicore  multicpu  multithread  multiprocessor  pdf  paul  mckenney  linux  operating  systems  book  article 
january 2011 by dale.hagglund
How to Read Mathematics
What are the common mistakes people make in trying to read mathematics?  How can these mistakes be corrected?
math  mathematics  article  reading  education  learning  teaching  science  read  academic  study 
october 2010 by dale.hagglund
The Evolution of the Unix Timesharing System
This paper presents a brief history of the early development of the Unix operating system. It concentrates on the evolution of the file system, the process-control mechanism, and the idea of pipelined commands. Some attention is paid to social conditions during the development of the system.
article  dennis  ritchie  bell  labs  laboratories  computer  history  unix  computing  education  evolution  timesharing  linux  programming 
may 2010 by dale.hagglund
Why Your Employees Are Losing Motivation - HBS Working Knowledge
"Most companies have it all wrong. They don't have to motivate their employees. They have to stop demotivating them. The great majority of employees are quite enthusiastic when they start a new job. But in about 85 percent of companies, our research finds, employees' morale sharply declines after their first six months—and continues to deteriorate for years afterward."
harvard  business  school  review  article  career  culture  employee  leadership  management  motivation  work  hbr  hbs  engagement 
march 2010 by dale.hagglund
A successful Git branching model
One person's git branching model that they've found useful. It's clearly explained, and whether you agree with it or not, it's worth reading and considering the problems being solved.
git  branch  model  software  development  article  distributed  version  control  system  dvcs  programming  workflow 
march 2010 by dale.hagglund
Statistics to English Translation, Part 1: Accuracy Measures
Scientists, engineers, and statisticians share similar concerns about evaluating the accuracy of their results, but they don’t always talk about it in the same language. This can lead to misunderstandings when reading across disciplines, and the problem is exacerbated when technical work is communicated to and by the popular media. [...] The first installment discusses some different accuracy measures that are commonly used in various research communities, and how they are related to each other."
article  math  statistics  accuracy  precision  false  positive  negative  error 
november 2009 by dale.hagglund
GPSD-NG: A Case Study in Application Protocol Evolution
"The GPSD request-response protocol is enterng its third generation of design, and I think the way it has evolved spotlights some interesting design issues and long-term trends in the design of network protocols in general. To anticipate, these trends are: (1) changing tradeoffs of bandwidth economy versus extensibility and explicitness, (2) a shift from lockstep conversational interfaces to event streams, (3) changes in the "sweet spot" of protocol designs due to increasing use of scripting languages, and (4) protocols built on metaprotocols."
eric  raymond  gps  gpsd  protocol  evolution  json  streaming  article  essay 
august 2009 by dale.hagglund
Paul Erdos -- A life that added up to something
The prolific mathematician Paul Erdos died on 20 September 1996. His Washington Post obituary ends with the sentence "He left no immediate survivors." Charles Krauthammer disputes this dismal summary by pointing out Erdos's vast intellectual legacy, and exploring the unique traits that lead to this legacy. "No survivors, indeed."
paul  erdos  mathematics  writing  obituary  inspiration  biography  math  article  charles  krauthammer 
may 2009 by dale.hagglund
Elevating Science, Elevating Democracy - NYTimes.com
"Science teaches facts, not values, the story goes. [....] But this is balderdash. Science is not a monument of received Truth but something that people do to look for truth. That endeavor, which has transformed the world in the last few centuries, does indeed teach values. Those values, among others, are honesty, doubt, respect for evidence, openness, accountability and tolerance and indeed hunger for opposing points of view. These are the unabashedly pragmatic working principles that guide the buzzing, testing, poking, probing, argumentative, gossiping, gadgety, joking, dreaming and tendentious cloud of activity [...] that is slowly and thoroughly penetrating every nook and cranny of the world. Nobody appeared in a cloud of smoke and taught scientists these virtues. This behavior simply evolved because it worked."
politics  science  new  york  times  article  education  society  democracy  religion  atheism  morality 
january 2009 by dale.hagglund
Why I Copyfight (Cory Doctorow)
"Internet transactions are more apt to commit a copyright offense than their offline equivalents. That's because every transaction on the Internet involves copies." Cory Doctorow argues that that the act of copying is fundamental to culture on the Internet, but copyright law and it's fundamental principles date from a (very recent) period when copying was essentially an industrial process and thus outside the realm of popular culture
cory  doctorow  copyright  legal  technology  internet  culture  creative  commons  article  philosophy 
november 2008 by dale.hagglund
Programmer Insecurity (Ben Collins-Sussman)
Collins-Sussman observes that many programmers will go to great lengths to avoid showing other developers their work-in-progress which works against common best-practices in software development.
programming  psychology  article  collins  sussman  ben  sharing  source  code  programmers  version  control  best  practices 
july 2008 by dale.hagglund
Articles by Jack W. Reeves
Several interesting articles on C++ by Jack Reeves. All were originally published in either the "C++ Journal" or the "C++ Report".
jack  reeves  article  software  development  c++  programming  language  design  exception  handling  visitor  stl  standard  template  library 
june 2008 by dale.hagglund
Dr. Dobb's | Maximize Locality, Minimize Contention | May 23, 2008
Unless taken into account, implicit locking by multi-core cache coherence protocols can effectively serialize otherwise concurrent software.
article  c  c++  programming  concurrency  herb  sutter  architecture  locality  contention  cache  coherency  scalability  effective  false  sharing  convoy 
june 2008 by dale.hagglund
Dr. Dobb's | Interrupt Politely | April 9, 2008
Still more tips on effective concurrency by Herb Sutter: this one focuses on safely cancelling or interrupting threads when the work being performed is no longer needed.
article  c  c++  programming  concurrency  herb  sutter  architecture  parallel  scalability  threads  posix  thread  cancellation  interruption  effective 
april 2008 by dale.hagglund
Who did Kill the Software Engineer? (Ekinoderm)
"It’s like if you walked into a painting class, told everyone that learning to paint was too hard, and then [...] told them that photography was the same thing as painting, only a lot easier to do."
article  career  software  development  computer  science  education  engineering  teaching  technology 
march 2008 by dale.hagglund
Computer Science Education: Where Are the Software Engineers of Tomorrow? (STSC CrossTalk)
"Computer Science education is neglecting basic skills, in particular in the areas of programming and formal methods. [...] We examine briefly the set of programming skills that should be part of every software professional’s repertoire."
article  career  software  development  computer  science  education  engineering  teaching  technology 
march 2008 by dale.hagglund
What Best Practice is Best (CM Crossroads, November 2007)
The November 2007 edition of CM Crossroads takes a look at best practices, and how you can decide which best practice is best for you.
configuration  management  cms  crossroads  article 
march 2008 by dale.hagglund
Six Principles for Making New Things
"I like to find (a) simple solutions (b) to overlooked problems (c) that actually need to be solved, and (d) deliver them as informally as possible, (e) starting with a very crude version 1, then (f) iterating rapidly."
article  software  development  programming  design  creativity  paul  graham  philosophy  innovation 
february 2008 by dale.hagglund
Memory part 8: Future technologies [LWN.net]
The eighth and final part of this series discusses several different upcoming technologies to improve memory performance, including transactional memory, lockless data structures, vector operations, and others.
ulrich  drepper  memory  hardware  architecture  lwn  article  cas  compare  swap  transactional  latency  numa  vector 
november 2007 by dale.hagglund
Memory part 7: Memory performance tools [LWN.net]
The seventh part of this series discusses tools to help understand the memory performance of a program: oprofile, page faults, cachegrind, massif
ulrich  drepper  memory  hardware  architecture  lwn  article  programming  tools  performance  optimization  cachegrind  valgrind  massif 
november 2007 by dale.hagglund
Memory part 6: More things programmers can do [LWN.net]
The sixth part in this series discusses more ways a programmer can improve performance through understaning memory use relating to concurrency and numa.
ulrich  drepper  lwn  article  hardware  memory  dram  sram  ddr  ddr2  architecture  performance  optimization  numa 
november 2007 by dale.hagglund
On the Tension Between Object-Oriented and Generic Programming in C++
Generic programming can conflict with OO design principles. Type erasure can be used to resolve this conflict.
artima  c++  programming  language  stl  object  oriented  generic  type  erasure  article 
november 2007 by dale.hagglund
Safe Bitfields in C++ (originally: Safe Labels in C++)
This article describes a technique for type-safe bitmasks in C++.
c++  programming  template  bitfield  artima  article  language 
november 2007 by dale.hagglund
Memory part 5: What programmers can do [LWN.net]
The fifth part in Ulrich Drepper's series _What Every Programmer Should Know About Memory_ discusses what programmers can do in their software to make efficient use of the memory hierarchy discussed in the previous four parts.
ulrich  drepper  hardware  architecture  performance  memory  lwn  article  programming 
october 2007 by dale.hagglund
Memory part 4: NUMA support [LWN.net]
Part four of _What Every Programmer Should know about Memory_ discusses non-uniform memory architectures (NUMA), the performance implications of NUMA, and how the linux kernel supports it.
ulrich  drepper  processor  architecture  numa  nonuniform  memory  linux  performance  hardware  lwn  article 
october 2007 by dale.hagglund
Memory part 3: Virtual Memory [LWN.net]
The third part of Ulrich Drepper's series _What Every Programmer should know about Memory_ at LWN.net discusses virtual memory.
ulrich  drepper  hardware  architecture  processor  virtual  memory  tlb  virtualization  linux  kvm  xen  article 
october 2007 by dale.hagglund
What every programmer should know about memory, Part 1 [LWN.net]
Part one of a series of articles by Ulrich Drepper discusses the low-level characteristics of physical memory.
ulrich  drepper  lwn  article  hardware  dram  sram  ddr  ddr2  memory  architecture 
october 2007 by dale.hagglund
What the Bubble Got Right (Paul Graham)
Paul Graham's thoughts on the internet bubble of the late 90s, and what its key *right* ideas were.
article  paul  graham  internet  economics  culture  business  finance  history  market  startups  technology 
april 2007 by dale.hagglund
Why RAID is (usually) a Terrible Idea
An interesting essay by Jon Bach, president of Puget Custom Computers, about why RAID is often a bad idea in a desktop environment
article  storage  backup  raid  sysadmin  hardware 
april 2007 by dale.hagglund
Router Man -- Network World
The creator of the multiprotocol router reflects on the development of the device that fueled the growth of networking.
network  computer  history  router  william  bill  yeager  inventor  cisco  article  interview 
march 2006 by dale.hagglund

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