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How to use glOrtho() in OpenGL?
...nGL 4 programs calculate the transformation matrix (which is small) on the CPU, and then give the matrix and all points to be transformed to OpenGL, which can do the thousands of matrix multiplications for different points really fast in parallel.
Manually written vertex shaders then do the multipl...
In C++, is it still bad practice to return a vector from a function?
...e at a time, which I have verified by re-running the test while monitoring CPU usage). The best performance is achieved when mem(v) = 16kB, which is the order of magnitude of L1 cache (L1 data cache for the i7-7700K is 4x32kB).
Of course, the differences become less and less relevant the more compu...
C dynamically growing array
... processing various things. I would like to avoid using too much memory or CPU for keeping such indexes...
7 Answers
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Dokan虚拟磁盘开发实战 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...在DeleteDirectory里实现删除目录的同步），而删除文件则没问题。
这里有一点需要注意：因为执行Cleanup之前，可能会多次调用CreateFile，比如记事本保存文档时就会执行两次CreateFile之后再调用Cleanup，所以我在Cleanup的最后执行MySet...
Should I use Vagrant or Docker for creating an isolated environment? [closed]
...nstead of LXC based. However, I've found a decent laptop (8 GB RAM, i5/i7 CPU) has no trouble running a VM using Vagrant/VirtualBox alongside development tooling.
One of the really great things with Vagrant is the integration with Puppet/Chef/shell scripts for automating configuration. If you're u...
Virtual Memory Usage from Java under Linux, too much memory used
...about the Hello World example:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2120 kgregory 20 0 4373m 15m 7152 S 0 0.2 0:00.10 java
VIRT is the virtual memory space: the sum of everything in the virtual memory map (see below). It is largely meaningless, except ...
Secure hash and salt for PHP passwords
...tching is now a critical feature of password mechanisms due to much faster CPUs and the use of GPUs and FPGAs to crack passwords at rates of billions of guesses per second (with GPUs).
For example, you can crack all 8-character Windows passwords in 6 hours using 25 GPUs installed in 5 desktop PCs. ...
App Inventor 2 LLMAI2Ext 自研拓展：接入DeepSeek、Kimi、通义千问...等国...
... 文本输入框_提问.Text == "" {
标签_提示.Text = "请先输入问题"
} else {
按钮_发送.Enabled = false
按钮_发送.Text = "回答中…"
标签_回答.Text = ""
DeepSeek1.Chat(文本输入框_提问.Text)
}
}
when DeepSeek1.GotStream(part, finished) {
标...
When to Redis? When to MongoDB? [closed]
...hardware. Like any other database solution, it will work better with more CPU and memory but is certainly not a requirement - especially for early development purposes.
share
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Window Features - 更多技术 - 清泛网 - 专注C/C++及内核技术
...d windows.
Each thread has a priority level that determines the amount of CPU time the thread receives. Although an application can set the priority level of its threads, normally the foreground thread has a slightly higher priority level than the background threads. Because it has a higher priorit...