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Volatile vs. Interlocked vs. lock
...at all. The point of volatile is that multiple threads running on multiple CPUs can and will cache data and re-order instructions.
If it is not volatile, and CPU A increments a value, then CPU B may not actually see that incremented value until some time later, which may cause problems.
If it is vol...
Best way to iterate through a Perl array
...u-thread-multi
I get:
Benchmark: running 1, 2, 3, 4, 5, 6 for at least 3 CPU seconds...
1: 3 wallclock secs ( 3.16 usr + 0.00 sys = 3.16 CPU) @ 12560.13/s (n=39690)
2: 3 wallclock secs ( 3.18 usr + 0.00 sys = 3.18 CPU) @ 7828.30/s (n=24894)
3: 3 wallclock secs ( 3...
How do I fix “Failed to sync vcpu reg” error?
...nstance, and my emulator started right up. FYI my virtual device was using CPU/ABI=x86, and I was running on a macbook pro.
– guyland123
Nov 20 '15 at 13:45
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c++ volatile关键字简析 - C/C++ - 清泛网 - 专注C/C++及内核技术
c++ volatile关键字简析volatile防范冲突，提高效率。降低CPU Cache Line锁冲突的几率。不同于普通变量在于：CPU缓存中有值的话，也得从内存中重新加载到缓存（普通变量不会）；即认为寄存器值不可靠， volatile 防范冲突，提高效...
Generating a unique machine id
...FirmwareTables and GetSystemFirmwareTable.
IIRC, the "unique id" from the CPUID instruction is deprecated from P3 and newer.
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MFC OnEraseBkgnd浅析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...EraseBkgnd浅析在使用VC进行绘图时，最郁闷的就是屏幕闪烁问题。有时只能使用双缓冲去解决，当然更多的时候是去忍受。有没有什么这种的方法？有，那就是重 在使用VC进行绘图时，最郁闷的就是屏幕闪烁问题。有时只能使用...
Difference between 'self' and 'total' in Chrome CPU Profile of JS
...hat is the difference between the 'self' and 'total' columns in the Chrome CPU profiling of JS code?
2 Answers
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马无夜草不肥——聊聊程序员接私活的那些坑 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...，经常遇到是否能1000块开发出一个像淘宝那样的网站的问题，自身价值分分钟被贬低，差点被气得一口老血喷涌而出。
靠同学、朋友、同事介绍的渠道通常性价比要高，但有可以抱的大腿少哇。
二. 谈钱伤感情，不谈钱伤身...
海量数据相似度计算之simhash短文本查找 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...升级、增加机器，但有些时候光是增加机器已经解决不了问题了，就算增加机器也不是短时间能够解决的，需要考虑分布式、客户预算、问题解决的容忍时间？头大时候要相信人类的智慧是无穷的，泡杯茶，听下轻音乐：）畅想...
Programmatically find the number of cores on a machine
... lines):
Win32
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
int numCPU = sysinfo.dwNumberOfProcessors;
Linux, Solaris, AIX and Mac OS X >=10.4 (i.e. Tiger onwards)
int numCPU = sysconf(_SC_NPROCESSORS_ONLN);
FreeBSD, MacOS X, NetBSD, OpenBSD, etc.
int mib[4];
int numCPU;
std::size_t l...