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PHPCMS判断首页列表页内页分类 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...些标签判断，原理都是一样的，在公用模板上使用效率很高的，代码如下:
{if !$catid}首页{/if}
{if $child}栏目首页{/if}
{if $parentid}栏目列表页{/if}
{if $catname}栏目首页和栏目列表页{/if}
{if $id}内容页{/if}
{if $tag}标签列表页{/if}
PHP...
低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别 · App Inventor 2 中文网
...类或监测类数据交换
SPP可以达到3Mbps或更高。提供较高的数据传输速率，适用于需要快速传输大量数据的应用，例如音频流、文件传输等。
蓝牙功耗
极低功耗：可达数月或几年的电池续航时间
较高功...
乘着App的创业浪潮 行业短信也迎来了新生和爆发 - 资讯 - 清泛网 - 专注C/C...
...新生之后，如何提升用户体验，解决消息延迟、被拦截等问题成为了行业短信面临的最大难题。
逆势崛起：验证短信迎来脱胎换骨
毫无疑问，短信正在死亡，最具有代表性的便是拜年短信。除夕是拜年短信发送的高峰，甚至...
What are the main uses of yield(), and how does it differ from join() and interrupt()?
...iority) will get a chance to run before the yielded thread is next
given CPU time. When it is eventually re-scheduled, it will come back
with a full full quantum, but doesn't "carry over" any of the
remaining quantum from the time of yielding. This behaviour is a
little different from a non-...
How to find the Number of CPU Cores via .NET/C#?
Is there a way via .NET/C# to find out the number of CPU cores?
11 Answers
11
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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...ome work in that area. But we're talking a minimum of 5-10 minutes of 100% CPU to compile, and the resulting optimizations would probably be CPU core model and even core or microcode revision specific.
– AdamIerymenko
Jul 27 '13 at 19:16
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分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...一台服务器来提供数据服务的时候，我会遇到如下的两个问题：1）一台服务器的性能不足以提供足够的能力服务于所有的网络...当我们在生产线上用一台服务器来提供数据服务的时候，我会遇到如下的两个问题：
1）一台服务...
AI2 Keep Awake
...tions are to be performed only occasionally, it is not necessary for the CPU to be constantly active. Instead, an alarm can be used (see UrsAI2Alarm ). Motivation For some projects it is necessary to prevent the associated app from being deactivated by the operating system. A typical exam...
Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...s means that it will be performed with as little impact as possible on the CPU.
At application level, asynchronous I/O prevents threads from having to wait for I/O operations to complete. As soon as an asynchronous I/O operation is started, it releases the thread on which it was launched and a call...
刘强东“一元年薪”背后的O2O棋局 - 资讯 - 清泛网 - 专注C/C++及内核技术
...类、鲜花、外卖送餐等各类生活服务项目，并基于移动端定位实现2小时内快速送达。
据京东方面透露，“京东到家”如今已开通7个城市，目前该业务订单数量快速增长，盈利模式是京东和超市分成。
刘强东称，长期来看，“...