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https://www.tsingfun.com/it/tech/1408.html 

Redis 的性能幻想与残酷现实 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...是抱有幻想的。 幻想 要了解 Redis 的性能,我们先看看官方的基准性能测试数据,心里有个底。 测试前提 Redis version 2.4.2 Using the TCP loopback Payload size = 256 bytes 测试结果 SET: 198412.69/s GET: 198019.80/s 这个数据刚一看觉得有...
https://www.fun123.cn/reference/iot/UDP.html 

App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网

... 切换 目录 官方 QQ群 免费技术交流群483928335 在线 客服 扫码添加客服咨询 我要 分享 ...
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Timer function to provide time in nano seconds using C++

...ec ts; clock_gettime(CLOCK_REALTIME, &ts); return (uint64_t)ts.tv_sec * 1000000LL + (uint64_t)ts.tv_nsec / 1000LL; } the timing and values produced: Absolute values: rdtsc = 4571567254267600 clock_gettime = 1278605535506855 Processing time: (10000000 runs) rdtsc ...
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Android Left to Right slide animation

...ew.OnClickListener; import android.widget.Button; import android.widget.TextView; public class FirstActivity extends RootActivity { @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); s...
https://www.tsingfun.com/it/tech/1999.html 

java中的缓存技术该如何实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...式的刷新策略(如果默认性能不需要时)。      官方网站 http://www.opensymphony.com/oscache/      Java Caching System      JSC(Java Caching System)是一个用分布式的缓存系统,是基于服务器的java应用程序。它是通过提供管理...
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MIT官方已升级至2.70版本,中文网待测试并升级相关特性 - App Inventor 2 ...

2.70 版本主要更新内容: Features:Add a Japanese translationUpdate the Spanish translationMake the Sharing component respect DefaultFileScope when sharing relative path files (@arjuninv)Add TextChange event, MoveCursor methods, and HintColor property to TextBox and related components (@gordo...
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How to Create a circular progressbar in Android which rotates on it?

...lass CustomProgressBarActivity extends AppCompatActivity { private TextView txtProgress; private ProgressBar progressBar; private int pStatus = 0; private Handler handler = new Handler(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(...
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How to programmatically set maxLength in Android TextView?

I would like to programmatically set maxLength property of TextView as I don't want to hard code it in the layout. I can't see any set method related to maxLength . ...
https://www.tsingfun.com/it/tech/1411.html 

新浪是如何分析处理32亿条实时日志的? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...化需求得不到满足,Kibana配置难度大。 我们起初采用官方Kibana v3,用户提出的类似SQL中的多个group by,画百分比,求指定区间占比等常见需求无法满足。之后通过三斗大神(微博@argv)定制版的Kibana 3满足了一些用户需求。Kibana 4...
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Implement touch using Python?

...port * libc = CDLL("libc.so.6") # struct timespec { # time_t tv_sec; /* seconds */ # long tv_nsec; /* nanoseconds */ # }; # int futimens(int fd, const struct timespec times[2]); class c_timespec(Structure): _fields_ = [('tv_sec', c_long), ('tv_ns...