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John Carmack's Unusual Fast Inverse Square Root (Quake III)
...ng result, until required accuracy is met. This is exactly how it works in CPU/FPU! But it seems that only one iteration was enough, which was also a blessing for the speed. CPU/FPU does as many iterations as needed to reach the accuracy for the floating point number in which the result is stored an...
How do you determine the ideal buffer size when using FileInputStream?
...mum buffer size is related to a number of things: file system block size, CPU cache size and cache latency.
Most file systems are configured to use block sizes of 4096 or 8192. In theory, if you configure your buffer size so you are reading a few bytes more than the disk block, the operations wit...
What is a “cache-friendly” code?
...hit/miss usually refers to a hit/miss in the highest level of cache in the CPU -- by highest level I mean the largest == slowest. The cache hit rate is crucial for performance since every cache miss results in fetching data from RAM (or worse ...) which takes a lot of time (hundreds of cycles for RA...
mysql blob大小配置介绍 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...种处理大数据对象的方法是把双刃剑，它有可能引发一些问题，如存储的二进制文件过大，会使数据库的性能下降。在数据库中存放体积较大的多媒体对象就是应用程序处理BLOB的典型例子。
mysql BLOB类型
MySQL中，BLOB是个类...
mysql blob大小配置介绍 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...种处理大数据对象的方法是把双刃剑，它有可能引发一些问题，如存储的二进制文件过大，会使数据库的性能下降。在数据库中存放体积较大的多媒体对象就是应用程序处理BLOB的典型例子。
mysql BLOB类型
MySQL中，BLOB是个类...
What is a coroutine?
...t? If it is right, it is just like an un-preemptive OS running on one-core CPU, one process must relinquish CPU to let other tasks run.
– Nan Xiao
Jun 22 '16 at 12:18
...
Why are only a few video games written in Java? [closed]
...ppers
for their native libraries, whether
for graphics, audio, networking, etc.
But mainly, the issue is backwards compatibility. Games developers moved to C++ from C and to C from assembly purely because the migration route was smooth. Each interoperates closely with the previous, and all their p...
使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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use admin
db.shutdownServer()
有任何关于MongoDB/TokuMX方面的问题，欢迎回复评论。集群 TokuMX MongoDB
How can I store my users' passwords safely?
...e flag. This allows the stored proc to log the attempt, create a session, etc.
– Steven Sudit
Mar 25 '10 at 20:09
@In...
Is there a performance difference between i++ and ++i in C++?
...i; }, never mind the actual tree structur (BSP, kd, Quadtree, Octree Grid, etc.). Such an iterator would need to maintain some state, e.g. parent node, child node, index and stuff like that. All in all, my stance is, even if only few examples exist, ...
– Sebastian Mach
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