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JavaScript, Node.js: is Array.forEach asynchronous?
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technically, forEach isn't "blocking", as the CPU never goes to sleep. It's synchronous and CPU-bound, which can feel like "blocking" when you expect the node app to be responsive to events.
– Dave Dopson
Aug 2 '11 at 17:58
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Wait 5 seconds before executing next line
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So basically you are wasting CPU time. That's not a wait as you are not putting the thread into sleep mode allowing the main processor to focus in other tasks.
– Kyordhel
Jul 6 '17 at 20:25
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Convert from enum ordinal to enum type
...nst char CLUBS=0;' etc... Yes,a HashMap lookup is O(1), but the memory and CPU overhead of a HashMap, in this case make it many orders of magnitude slower and resource hungry than calling .values() directly! No wonder Java is such a memory hog if people write like this...
– Les...
What is the behavior of integer division?
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Truncation is how most common CPU hardware (e.g. x86) behaves, so it would be crazy to make a different choice. IDK which came first, Fortran semantics or hardware behaviour, but it's not a coincidence that those are the same, too.
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Where are my postgres *.conf files?
... an arbitrary scale
#random_page_cost = 4.0 # same scale as above
#cpu_tuple_cost = 0.01 # same scale as above
#cpu_index_tuple_cost = 0.005 # same scale as above
#cpu_operator_cost = 0.0025 # same scale as above
#effective_cache_size = 128MB
# - Genetic Query Optimizer -...
Attempted to read or write protected memory. This is often an indication that other memory is corrup
...out, the problem was that I changed the Platform for Build from x86 to Any CPU and that was enough to trigger this error. Changing it back to x86 did the trick. Might help someone.
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Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...监控日志，一方面帮助日志微调，一方面及早发现程序的问题
只做到第1点的，你可以洗洗去睡了。很多公司都有做到第2点和第3点，这些公司的服务端程序基本已经跑了很长时间了，已比较稳定，确实无需花太多时间去关注...
盘点微软历史上9大失败软件产品！ - 创意 - 清泛网 - 专注C/C++及内核技术
...面。希望满足初级计算机用户的需求，或许这个概念没有问题，但是过于简单，只是讲解如何使用计算机，售价却高达100美元，结果在没有市场的情况下被淘汰了。有趣的是，Bob项目是由盖茨的老婆梅林达负责管理的。
2、MSN Me...
13 种激励程序员的方法 - 创意 - 清泛网 - 专注C/C++及内核技术
...性工作时间
很多程序员喜欢挑灯夜战来解决他们遇到的问题。但第二天他们晚到的话就会被骂，他们更喜欢把傍晚的时候花费在那些与工作无关但自己喜欢的项目上。因此，公司应该执行相应的办公室政策，越灵活的政策，才...
程序员，你有多久没有跳出技术关注业界了？ - 创意 - 清泛网 - 专注C/C++及内核技术
...着信息的狭窄，因为需要经常在网上搜集各种资料来解决问题，不过还是有局限性的，因为这仅限在自己专业领域的专注，往往错过了更多其他的东西，其中最重要的一条就是对业界的关注。
对业界的关注，我们分为三个层次...