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How to see top processes sorted by actual memory usage?
... Yes
N PID Yes
P %CPU Yes
T TIME+ Yes
Or alternatively: hit Shift + f , then choose the display to order by memory usage by hitting key n then press Enter. You will see active pr...
Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...多的时候，冗余的浪费将非常严重，此外还有数据一致性问题，所以它只是一个粗线条的解决方案。
对此类问题而言，SRCache是一个细粒度的解决方案。其工作原理大致如下：
SRCache工作原理
当问题比较简单的时候，通常SRC...
How to detect idle time in JavaScript elegantly?
...ls the function, rather than letting it sit idle by.
It doesn't catch zero CPU usage directly, but that is impossible, because executing a function causes CPU usage. And user inactivity eventually leads to zero CPU usage, so indirectly it does catch zero CPU usage.
...
How is Node.js inherently faster when it still relies on Threads internally?
...ease performance because it sounds to me like you are able to max out your CPU because there isn't any threads or execution stacks just waiting around for IO to return so what Ryan has done is effectively found a way to close all the gaps.
– Ralph Caraveo
Sep 3...
TypeLoadException says 'no implementation', but it is implemented
...
I had this error too, it was caused by an Any CPU exe referencing Any CPU assemblies that in turn referenced an x86 assembly.
The exception complained about a method on a class in MyApp.Implementations (Any CPU), which derived MyApp.Interfaces (Any CPU), but in fuslogv...
实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...时性较差。虽然可以通过加快轮询频率的方式来缓解这个问题，但相应付出的代价也不小：一来会使负载居高不下，二来也会让带宽捉襟见肘。
再来说说Long Polling，如果使用传统的LAMP技术去实现的话，大致如下所示：
Long Pol...
What is the “FS”/“GS” register intended for?
... used to manage thread-specific memory. The linux kernel uses GS to access cpu-specific memory.
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Beyond Stack Sampling: C++ Profilers
...
First:
Time sampling profilers are more robust than CPU sampling profilers. I'm not extremely familiar with Windows development tools so I can't say which ones are which. Most profilers are CPU sampling.
A CPU sampling profiler grabs a stack trace every N instructions.
This ...
Once upon a time, when > was faster than < … Wait, what?
...son. Remember: we're talking about graphics hardware depth tests, not your CPU. Not operator<.
What I was referring to was a specific old optimization where one frame you would use GL_LESS with a range of [0, 0.5]. Next frame, you render with GL_GREATER with a range of [1.0, 0.5]. You go back a...
What is the difference between a process and a thread?
... referring to. Threads are an operating environment feature, rather than a CPU feature (though the CPU typically has operations that make threads efficient).
Erlang uses the term "process" because it does not expose a shared-memory multiprogramming model. Calling them "threads" would imply that the...