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书名:仁和会计|作者:笑无语|本书类别:古言|更新时间:06:00:29|字数:3896字

????来源丨21世纪经济报道 21财经APP 记者丨倪雨晴 东莞报道8月9日,华为开发者大会上,鸿蒙OS终于揭开面纱,可以面向全场景。而华为发布全场景OS,则是为了打破设备之间的墙,跨终端的体验。华为消费者业务CEO余承东在介绍鸿蒙OS开发初衷时表示:“随着全场景智慧时代的到来,华为认为需要进一步提升操作系统的跨平台能力,包括支持全场景、跨多设备和平台的能力以及应对低时延、高安全性挑战的能力,因此逐渐形成了鸿蒙OS的雏形,可以说鸿蒙OS的出发点和Android、iOS都不一样,是一款全新的基于微内核的面向全场景的分布式操作系统,能够同时满足全场景流畅体验、架构级可信安全、跨终端无缝协同以及一次开发多终端部署的要求,鸿蒙应未来而生。”鸿蒙OS的四大技术特性鸿蒙OS的设计初衷是为满足全场景智慧体验的高标准的连接要求,为此华为提出了4大特性的系统解决方案。1.分布式架构首次用于终端OS,实现跨终端无缝协同体验鸿蒙OS的“分布式OS架构”和“分布式软总线技术”通过公共通信平台,分布式数据管理,分布式能力调度和虚拟外设四大能力,将相应分布式应用的底层技术实现难度对应用开发者屏蔽,使开发者能够聚焦自身业务逻辑,像开发同一终端一样开发跨终端分布式应用,也使最终消费者享受到强大的跨终端业务协同能力为各使用场景带来的无缝体验。2. 确定时延引擎和高性能IPC技术实现系统天生流畅鸿蒙 OS通过使用确定时延引擎和高性能IPC两大技术解决现有系统性能不足的问题。确定时延引擎可在任务执行前分配系统中任务执行优先级及时限进行调度处理,优先级高的任务资源将优先保障调度,应用响应时延降低25.7%。鸿蒙微内核结构小巧的特性使IPC(进程间通信)性能大大提高,进程通信效率较现有系统提升5倍。3. 基于微内核架构重塑终端设备可信安全鸿蒙OS采用全新的微内核设计,拥有更强的安全特性和低时延等特点。微内核设计的基本思想是简化内核功能,在内核之外的用户态尽可能多地实现系统服务,同时加入相互之间的安全保护。微内核只提供最基础的服务,比如多进程调度和多进程通信等。鸿蒙OS将微内核技术应用于可信执行环境(TEE),通过形式化方法,重塑可信安全。形式化方法是利用数学方法,从源头验证系统正确,无漏洞的有效手段。传统验证方法如功能验证,模拟攻击等只能在选择的有限场景进行验证,而形式化方法可通过数据模型验证所有软件运行路径。 鸿蒙OS首次将形式化方法用于终端TEE,显着提升安全等级。同时由于鸿蒙OS微内核的代码量只有Linux宏内核的千分之一,其受攻击几率也大幅降低。4. 通过统一IDE支撑一次开发,多端部署,实现跨终端生态共享鸿蒙OS凭借多终端开发IDE,多语言统一编译,分布式架构Kit提供屏幕布局控件以及交互的自动适配,支持控件拖拽,面向预览的可视化编程,从而使开发者可以基于同一工程高效构建多端自动运行App,实现真正的一次开发,多端部署,在跨设备之间实现共享生态。华为方舟编译器是首个取代Android虚拟机模式的静态编译器,可供开发者在开发环境中一次性将高级语言编译为机器码。此外,方舟编译器未来将支持多语言统一编译,可大幅提高开发效率。对标谷歌Fuchsia华为的这款操作系统,和谷歌正在研发的Fuchsia很像,2017年谷歌就曾在GitHub上发布,根据Fuchsia中文社区的介绍,Android 和 Chrome OS 是谷歌最为人熟知的两款操作系统,谷歌正在进行第三款操作系统的开发,这款新系统名字叫做 Fuchsia。它并不基于 Linux 内核,而是基于谷歌全新开发的一款名叫 Magenta 的内核。据了解,Fuchsia 是谷歌试图使用单一操作系统去统一整个生态圈的一种尝试,Fuchsia 的目标是能够在谷歌的技术保护伞下,运行于智能手机、智能音响、笔记本电脑等任何合适的设备之上。余承东表示,对比谷歌的Fuchsia ,鸿蒙OS有3倍到5倍的效率提升,华为的微内核已经投入商用了,可以用于高安全级别的,人脸识别、验证、安防等领域。余承东还说道,华为会优先使用安卓操作系统,考虑到安卓生态,减少大家的工作量。如果谷歌操作系统不能使用了,那就可以随时转移到鸿蒙OS上。同时,鸿蒙OS会对外开源。(编辑:许望)

lai yuan gun 21 shi ji jing ji bao dao 21 cai jing APP ji zhe gun ni yu qing dong guan bao dao 8 yue 9 ri, hua wei kai fa zhe da hui shang, hong meng OS zhong yu jie kai mian sha, ke yi mian xiang quan chang jing. er hua wei fa bu quan chang jing OS, ze shi wei le da po she bei zhi jian de qiang, kua zhong duan di ti yan. hua wei xiao fei zhe ye wu CEO yu cheng dong zai jie shao hong meng OS kai fa chu zhong shi biao shi:" sui zhe quan chang jing zhi hui shi dai de dao lai, hua wei ren wei xu yao jin yi bu ti sheng cao zuo xi tong de kua ping tai neng li, bao kuo zhi chi quan chang jing kua duo she bei he ping tai de neng li yi ji ying dui di shi yan gao an quan xing tiao zhan de neng li, yin ci zhu jian xing cheng le hong meng OS de chu xing, ke yi shuo hong meng OS de chu fa dian he Android iOS dou bu yi yang, shi yi kuan quan xin de ji yu wei nei he de mian xiang quan chang jing de fen bu shi cao zuo xi tong, neng gou tong shi man zu quan chang jing liu chang ti yan jia gou ji ke xin an quan kua zhong duan wu feng xie tong yi ji yi ci kai fa duo zhong duan bu shu de yao qiu, hong meng ying wei lai er sheng." hong meng OS de si da ji shu te xing hong meng OS de she ji chu zhong shi wei man zu quan chang jing zhi hui ti yan de gao biao zhun di lian jie yao qiu, wei ci hua wei ti chu le 4 da te xing de xi tong jie jue fang an. 1 fen bu shi jia gou shou ci yong yu zhong duan OS, shi xian kua zhong duan wu feng xie tong ti yan hong meng OS de" fen bu shi OS jia gou" he" fen bu shi ruan zong xian ji shu" tong guo gong gong tong xin ping tai, fen bu shi shu ju guan li, fen bu shi neng li diao du he xu ni wai she si da neng li, jiang xiang ying fen bu shi ying yong de di ceng ji shu shi xian nan du dui ying yong kai fa zhe ping bi, shi kai fa zhe neng gou ju jiao zi shen ye wu luo ji, xiang kai fa tong yi zhong duan yi yang kai fa kua zhong duan fen bu shi ying yong, ye shi zui zhong xiao fei zhe xiang shou dao qiang da de kua zhong duan ye wu xie tong neng li wei ge shi yong chang jing dai lai de wu feng ti yan. 2. que ding shi yan yin qing he gao xing neng IPC ji shu shi xian xi tong tian sheng liu chang hong meng OS tong guo shi yong que ding shi yan yin qing he gao xing neng IPC liang da ji shu jie jue xian you xi tong xing neng bu zu de wen ti. que ding shi yan yin qing ke zai ren wu zhi xing qian fen pei xi tong zhong ren wu zhi xing you xian ji ji shi xian jin xing diao du chu li, you xian ji gao de ren wu zi yuan jiang you xian bao zhang diao du, ying yong xiang ying shi yan jiang di 25. 7. hong meng wei nei he jie gou xiao qiao de te xing shi IPC jin cheng jian tong xin xing neng da da ti gao, jin cheng tong xin xiao lv jiao xian you xi tong ti sheng 5 bei. 3. ji yu wei nei he jia gou chong su zhong duan she bei ke xin an quan hong meng OS cai yong quan xin de wei nei he she ji, yong you geng qiang de an quan te xing he di shi yan deng te dian. wei nei he she ji de ji ben si xiang shi jian hua nei he gong neng, zai nei he zhi wai de yong hu tai jin ke neng duo di shi xian xi tong fu wu, tong shi jia ru xiang hu zhi jian de an quan bao hu. wei nei he zhi ti gong zui ji chu de fu wu, bi ru duo jin cheng diao du he duo jin cheng tong xin deng. hong meng OS jiang wei nei he ji shu ying yong yu ke xin zhi xing huan jing TEE, tong guo xing shi hua fang fa, chong su ke xin an quan. xing shi hua fang fa shi li yong shu xue fang fa, cong yuan tou yan zheng xi tong zheng que, wu lou dong de you xiao shou duan. chuan tong yan zheng fang fa ru gong neng yan zheng, mo ni gong ji deng zhi neng zai xuan ze de you xian chang jing jin xing yan zheng, er xing shi hua fang fa ke tong guo shu ju mo xing yan zheng suo you ruan jian yun xing lu jing. hong meng OS shou ci jiang xing shi hua fang fa yong yu zhong duan TEE, xian zhu ti sheng an quan deng ji. tong shi you yu hong meng OS wei nei he de dai ma liang zhi you Linux hong nei he de qian fen zhi yi, qi shou gong ji ji lv ye da fu jiang di. 4. tong guo tong yi IDE zhi cheng yi ci kai fa, duo duan bu shu, shi xian kua zhong duan sheng tai gong xiang hong meng OS ping jie duo zhong duan kai fa IDE, duo yu yan tong yi bian yi, fen bu shi jia gou Kit ti gong ping mu bu ju kong jian yi ji jiao hu de zi dong shi pei, zhi chi kong jian tuo zhuai, mian xiang yu lan de ke shi hua bian cheng, cong er shi kai fa zhe ke yi ji yu tong yi gong cheng gao xiao gou jian duo duan zi dong yun xing App, shi xian zhen zheng de yi ci kai fa, duo duan bu shu, zai kua she bei zhi jian shi xian gong xiang sheng tai. hua wei fang zhou bian yi qi shi shou ge qu dai Android xu ni ji mo shi de jing tai bian yi qi, ke gong kai fa zhe zai kai fa huan jing zhong yi ci xing jiang gao ji yu yan bian yi wei ji qi ma. ci wai, fang zhou bian yi qi wei lai jiang zhi chi duo yu yan tong yi bian yi, ke da fu ti gao kai fa xiao lv. dui biao gu ge Fuchsia hua wei de zhe kuan cao zuo xi tong, he gu ge zheng zai yan fa de Fuchsia hen xiang, 2017 nian gu ge jiu ceng zai GitHub shang fa bu, gen ju Fuchsia zhong wen she qu de jie shao, Android he Chrome OS shi gu ge zui wei ren shu zhi de liang kuan cao zuo xi tong, gu ge zheng zai jin xing di san kuan cao zuo xi tong de kai fa, zhe kuan xin xi tong ming zi jiao zuo Fuchsia. ta bing bu ji yu Linux nei he, er shi ji yu gu ge quan xin kai fa de yi kuan ming jiao Magenta de nei he. ju liao jie, Fuchsia shi gu ge shi tu shi yong dan yi cao zuo xi tong qu tong yi zheng ge sheng tai quan de yi zhong chang shi, Fuchsia de mu biao shi neng gou zai gu ge de ji shu bao hu san xia, yun xing yu zhi neng shou ji zhi neng yin xiang bi ji ben dian nao deng ren he he shi de she bei zhi shang. yu cheng dong biao shi, dui bi gu ge de Fuchsia , hong meng OS you 3 bei dao 5 bei de xiao lv ti sheng, hua wei de wei nei he yi jing tou ru shang yong le, ke yi yong yu gao an quan ji bie de, ren lian shi bie yan zheng an fang deng ling yu. yu cheng dong hai shuo dao, hua wei hui you xian shi yong an zhuo cao zuo xi tong, kao lv dao an zhuo sheng tai, jian shao da jia de gong zuo liang. ru guo gu ge cao zuo xi tong bu neng shi yong le, na jiu ke yi sui shi zhuan yi dao hong meng OS shang. tong shi, hong meng OS hui dui wai kai yuan. bian ji: xu wang

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