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Skip List vs. Binary Search Tree
... et al. by 63% to 224%, and a RBT that uses software transactional memory (STM) by 13 to 134 times
EDIT to add: Pugh's lock-based skip list, which was benchmarked in Fraser and Harris (2007) "Concurrent Programming Without Lock" as coming close to their own lock-free version (a point amply insiste...
MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...
...过程需要在从服务器上重放，所以主从复制的格式必须是基于STATEMENT的，不能是基于ROW的。
实际操作时的命令大致如下：
shell> pt-table-checksum \
--replicate=percona.checksums \
--host=<MASTER_HOST> \
--user=<MASTER_USER> \
--passwo...
开源跳板机(堡垒机)Jumpserver v2.0.0 使用说明 - 开源 & Github - 清泛网 ...
...开源的跳板机(堡垒机)系统，实现了跳板机应有的功能。基于ssh协议来管理，客户端无需安装agent。 支持常见系统:
CentOS, RedHat, Fedora, Amazon Linux
Debian
SUSE, Ubuntu
FreeBSD
其他ssh协议硬件设备说明视频：
用户管理： http://v.youku.co...
互联网运营人员必备的12款工具 - 资讯 - 清泛网 - 专注C/C++及内核技术
...究竟是怎么做出来的呢？使用易企秀，你也可以轻松制作基于H5手机幻灯片页面。它有多种动态模板，能实现文本和图片的滑动、隐现、放大缩小等动态效果。易企秀还与主流社会化媒体打通，方便了内容的分享与传播。
易企...
Scala vs. Groovy vs. Clojure [closed]
...anguage in the LISP family, it's also dynamically typed.
Features such as STM support give it some of the best out-of-the-box concurrency support, whereas Scala requires a 3rd-party library such as Akka to duplicate this.
Syntactically, it's also the furthest of the three languages from typical Ja...
思维导图软件 XMind 与 FreeMind 的对比 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...本文试做分析，以供用户/开发者参考。
本文的分析基于Windows平台下的 FreeMind 0.90 RC3 和 XMind 3.03，结合笔者的使用经验，也包括XMind开发者所提供的信息。基本结论是：总体看，XMind 已超越 FreeMind；个别方面，FreeMind 值得 XMi...
LinkedIn联合创始人：初创企业早期别花钱买用户 - 资讯 - 清泛网 - 专注C/C...
...个例子是Paypal.Paypal 是一个著名的公司，它的用户增长是基于eBay实现的。当时事情是这样的，如果我在eBay上卖东西给某个人，我会说“嘿，我想要你通过Paypal付款”，然后这个人(可能)会回答“好呀”。当这个人下次在eBay上买...
App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...输）
MQTT 发明于 1999 年，为物联网设计的轻量级协议，基于TCP协议实现。
MQTT 协议文档：https://mqtt.org/
虽然 App Inventor 有现成的 MQTT 扩展，但它们需要额外的 JavaScript 或外部配置文件。此处介绍的 MQTT 客户端组件完...
How can a time function exist in functional programming?
...d. Another context is within an atomic transaction, for which we have the STM monad. Yet another context is in the implementation of a procedural algorithm (e.g. Knuth shuffle) as a pure function, for which we have the ST monad. And you can define your own monads too. Monads are a kind of overlo...
Large-scale design in Haskell? [closed]
...
Lenses;
State, Reader, Writer, RWS, ST monads;
Impure state: IORef, MVar, STM;
Multithreading and concurrent domain modelling;
GUI;
Applicability of mainstream techniques and approaches such as UML, SOLID, GRASP;
Interaction with impure subsystems.
You may get familiar with the code for the book ...