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凤姐当天使 徐小平胡海泉薛蛮子王刚怎么看？ - 资讯 - 清泛网 - 专注C/C++...
...们投资偏硬技术比较多一点，一般现在的天使碰不到这些问题，你要投硬技术的时候，其实是特别痛苦的一件事，比如说现在天使投资都说人不好，我们就不投了，投硬技术，往往真理就在这个人的手里，他能掌握这个核心技术...
How many parameters are too many? [closed]
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A good rule-of-thumb is the number of CPU registers, because anymore and the compiler will be forced to allocate them on the stack.
– Michaelangel007
Mar 31 '16 at 14:10
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Why prefer two's complement over sign-and-magnitude for signed numbers?
...h positive and negative numbers can all be done by the same circuit in the cpu.
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Encapsulation vs Abstraction?
...f you go down all the way to the raw silicon, the people who designed your CPU did so using circuit diagrams written in terms of "diodes" and "transistors", which are abstractions of how electrons travel through semiconductor crystals.
In software, everything is an abstraction. We build programs wh...
TCP loopback connection vs Unix Domain Socket performance
...x Domain Sockets (UDS), and PIPEs.
Here you have the results on a single CPU 3.3GHz Linux machine :
TCP average latency: 6 us
UDS average latency: 2 us
PIPE average latency: 2 us
TCP average throughput: 0.253702 million msg/s
UDS average throughput: 1.733874 million msg/s
PIPE average throug...
内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...内存到CentralCache里。 解决了ptmalloc2中arena之间不能迁移的问题。
Tcmalloc占用更少的额外空间。例如，分配N个8字节对象可能要使用大约8N * 1.01字节的空间。即，多用百分之一的空间。Ptmalloc2使用最少8字节描述一个chunk。
更快。...
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...lation unit (for example: a foreign library, a file on disc, network data, CPU page tables, ...). In such a case the binary structure of data is also defined in a place inaccessible to the compiler, so reordering the struct fields would create a data type that is inconsistent with the other definiti...
How can I propagate exceptions between threads?
...d). Within the body of the function we spawn multiple worker threads to do CPU intensive work, wait for all threads to finish, then return the result on the main thread.
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C# List of objects, how do I get the sum of a property
...recommend you change it to: "Here is how you could do it" and "Here is the cpu performance of each option". Also in principle if you describe your testing methodology you need-not show us the code.
– Meirion Hughes
Feb 19 '16 at 10:08
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Python Process Pool non-daemonic?
...getting memory leak with this try using "with closing(MyPool(processes=num_cpu)) as pool:" to dispose of the pool properly
– Chris Lucian
Mar 15 '15 at 7:00
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