东冬の乱记 - AI、技术与生活的随笔https://donge.org/https://donge.org/posts/2026-03-22-tdx-backtest-agent/https://donge.org/posts/2026-03-22-tdx-backtest-agent/介绍一个将通达信公式自动转换为 ClickHouse SQL 并进行大规模回测的开源项目，结合了 LLM Agent 的开发模式。Sun, 22 Mar 2026 00:00:00 GMThttps://donge.org/posts/2026-03-15-software-reverse-engineering-ai/https://donge.org/posts/2026-03-15-software-reverse-engineering-ai/一个损坏的儿童早教机，一次常规的工程尝试，最终演变成大模型对传统逆向工程的‘降维打击’。欢迎来到逻辑全量透明的纪元。Sun, 15 Mar 2026 04:00:00 GMThttps://donge.org/posts/pak-reverse-engineering/https://donge.org/posts/pak-reverse-engineering/通过对 ARM926EJ-S 固件的逆向分析，还原 PAK 资源文件的循环密钥流解密算法，修复 MP4 资源解密不完全导致无法播放的问题。Sun, 15 Mar 2026 04:00:00 GMThttps://donge.org/posts/2026-prefill-cache/https://donge.org/posts/2026-prefill-cache/在企业安全运营（SecOps）中，引入大语言模型进行 API 异常检测已成为新趋势。本文介绍一种针对高频安全检测场景的系统性优化思路：Prefill KV Cache 固化，并深入到显存、内存、SSD三级存储的具体实现。Sat, 14 Mar 2026 02:00:00 GMThttps://donge.org/posts/blog-migration-history/https://donge.org/posts/blog-migration-history/Astro ← Hugo ← Hexo3 ← Hexo2 ← WordPress ← Micolog (GAE)Sun, 01 Mar 2026 04:00:00 GMThttps://donge.org/posts/2025-tdx-duckdb/https://donge.org/posts/2025-tdx-duckdb/最近做了个小工具，写了个 DuckDB 扩展，让 `.day`、`.lc1`、`.lc5` 这些通达信的行情文件可以直接用 SQL 查：Sat, 28 Feb 2026 16:00:00 GMThttps://donge.org/posts/2025-transformer-waf/https://donge.org/posts/2025-transformer-waf/基于对现有API参数检测系统的分析，当前系统使用CNN、Word2Vec和GAN进行HTTP参数异常检测。为了提升检测精度和实时性，设计一个基于Transformer架构的改进方案。Sat, 26 Jul 2025 18:00:00 GMThttps://donge.org/posts/2025-gguf-inspector/https://donge.org/posts/2025-gguf-inspector/我们已经成功地使用 gguf-inspector 工具窥探了 Qwen3-0.6B-Q8_0.gguf 文件的内部。我们看到了文件头、看到了 general.architecture: 'qwen3' 这样的元数据，还看到了一长串像 blkTue, 01 Jul 2025 18:00:00 GMThttps://donge.org/posts/2025-gguf/https://donge.org/posts/2025-gguf/GGUF (Georgi Gerganov Universal Format) 的核心设计哲学可以概括为：“一个文件，包含运行一个大语言模型所需的一切，并为快速、低内存加载而极致优化”。Tue, 01 Jul 2025 17:00:00 GMThttps://donge.org/posts/2025-module-format/https://donge.org/posts/2025-module-format/在人工智能的世界里，我们每天都在与“模型”打交道。但模型并非虚无缥缈，它最终以文件的形式存在于我们的硬盘上。当你从Hugging Face下载一个模型，或者准备将训练好的成果部署到生产环境时，你会遇到`.gguf`, `.onnx`, `.Tue, 01 Jul 2025 17:00:00 GMThttps://donge.org/posts/deepseek/https://donge.org/posts/deepseek/> **术语辞典**Thu, 06 Feb 2025 17:00:00 GMThttps://donge.org/posts/2024-api-transformer/https://donge.org/posts/2024-api-transformer/最近在Transformer-based场景下的异常检测读了一些论文，但目前这个领域还没看到特别工程化的内容，这是其中一篇比较新的。Sat, 17 Aug 2024 17:00:00 GMThttps://donge.org/posts/2024-why-rust-fast/https://donge.org/posts/2024-why-rust-fast/Rust很擅长JSON处理，serdes，各种RPC格式转换，正则表达式匹配处理，语法意义处理，parser。Mon, 03 Jun 2024 17:00:00 GMThttps://donge.org/posts/anti-arch/https://donge.org/posts/anti-arch/软件架构可以说是软件开发的“政治正确”，不谈“高大上”的架构，不但得不到客户的信任，也无法在团队中获得话语权，今天就来“反”一下。Sun, 01 Aug 2021 17:00:00 GMThttps://donge.org/posts/bigdata-2-format/https://donge.org/posts/bigdata-2-format/数据的输入的原始存储格式，和内存中的组织形式，是决定数据处理性能的关键。Sun, 11 Jul 2021 17:00:00 GMThttps://donge.org/posts/bigdata-1-state/https://donge.org/posts/bigdata-1-state/转行搞了三年大数据，计划写些的东西，对这个方向总结一下，包括架构，工具，格式，库等等。Tue, 22 Jun 2021 17:00:00 GMThttps://donge.org/posts/2021_network_arch/https://donge.org/posts/2021_network_arch/2021年了，看看网络系统的流行架构。Sun, 07 Mar 2021 17:00:00 GMThttps://donge.org/posts/anti-bot/https://donge.org/posts/anti-bot/先科普一下，这里说的“爬虫”是指网络爬虫，起源于互联网早期的搜索引擎。为了自动完成网页信息收集的工作被创造出来。Fri, 15 Jan 2021 17:00:00 GMThttps://donge.org/posts/envoy-vs-traefik/https://donge.org/posts/envoy-vs-traefik/云原生场景，产生了很多的Edge Router，Load balance，API Gate Way，Proxy等组件。Thu, 05 Nov 2020 17:00:00 GMThttps://donge.org/posts/death-of-software/https://donge.org/posts/death-of-software/软件是有生命的，最终走向EOL。Wed, 02 Sep 2020 17:00:00 GMThttps://donge.org/posts/nnngfirewall/https://donge.org/posts/nnngfirewall/Siri：“抱歉，很难回答你的问题”。Thu, 20 Aug 2020 08:31:11 GMThttps://donge.org/posts/servicewall/https://donge.org/posts/servicewall/公司成立于2018年5月，并获得了由北极光等著名VC联合投资，公司创始团队由来自美国 Netscreen、American Express 等知名企业的专家组成。Servicewall结合设备指纹，数据加密，大数据，人工智能等技术致力于为中Tue, 04 Aug 2020 17:00:00 GMThttps://donge.org/posts/rule-engine-3/https://donge.org/posts/rule-engine-3/做一个安全风控的引擎，用规则配置，需要能够自反馈。所以也不是一个简单的规则引擎。Tue, 28 Jul 2020 17:00:00 GMThttps://donge.org/posts/rule-engine-2/https://donge.org/posts/rule-engine-2/规则引擎字面隐含的需求：Tue, 28 Jul 2020 16:00:00 GMThttps://donge.org/posts/rule-engine-1/https://donge.org/posts/rule-engine-1/先看一类文章，为什么要用规则引擎Thu, 23 Jul 2020 08:31:11 GMThttps://donge.org/posts/hello-world-3/https://donge.org/posts/hello-world-3/Hugo <- Hexo3 <- Hexo2 <- WordPress <- Micolog GAEThu, 23 Jul 2020 07:48:11 GMThttps://donge.org/posts/xiaoshaozi/https://donge.org/posts/xiaoshaozi/这个简单的程序是我去年初写的，那时Bitcoin刚开始流行，Golang也刚刚开始流行。一方面为了学习一下量化交易是否真的可以赚钱，另外也练习一下用Golang写点能运行的东西。Sun, 06 Dec 2015 16:00:00 GMThttps://donge.org/posts/hello-world/https://donge.org/posts/hello-world/自从去年因为安装黑苹果导致全硬盘格式化，整个人都不好了。很久没coding，也没有写博客。Mon, 13 Apr 2015 16:00:00 GMThttps://donge.org/posts/revenge/https://donge.org/posts/revenge/故事开始前，先声明一下，此文不是技术文，前端猿勿鄙视之。Tue, 19 Aug 2014 16:00:00 GMThttps://donge.org/posts/anniversary/https://donge.org/posts/anniversary/两个多月没码字了，在写作这个事情上，我算得上是个懒人。或者是没有灵感的人，感觉灵感是一种冲动，我每每想写点什么的时候，都是看到了或想到了不好的东西。嘴里骂不出来，想给丫写上一笔，说白了还是愤青型，对事的，对人的。但等我有时间写的时候，想想这Mon, 28 Apr 2014 16:00:00 GMThttps://donge.org/posts/quant-first-feeling/https://donge.org/posts/quant-first-feeling/量化交易，也称算法交易或自动交易等等，就是利用数值分析，概率统计，通过计算机建模，自动完成交易。WikiSat, 15 Feb 2014 16:00:00 GMThttps://donge.org/posts/front-end-year/https://donge.org/posts/front-end-year/Sat, 08 Feb 2014 16:00:00 GMThttps://donge.org/posts/update-about-me/https://donge.org/posts/update-about-me/这周有点忙碌，没有更新博客，盗版了一个全英文的个人简历让大家感受一下...Sun, 26 Jan 2014 15:00:00 GMThttps://donge.org/posts/hello-golang/https://donge.org/posts/hello-golang/这周T神问我了一个问题，如果用Golang开发防火墙设备软件，你会有什么担心？Sun, 12 Jan 2014 13:00:00 GMThttps://donge.org/posts/2014-new-year/https://donge.org/posts/2014-new-year/新年来了，大家快乐：）Wed, 01 Jan 2014 14:00:00 GMThttps://donge.org/posts/it-hero/https://donge.org/posts/it-hero/搞IT的人总有一个很坏的毛病，就是觉得自己牛逼，别人傻蛋。Tue, 24 Dec 2013 15:00:00 GMThttps://donge.org/posts/left-huawei/https://donge.org/posts/left-huawei/从下定决心离开华为的那天到今天，刚好一年整。Sun, 15 Dec 2013 09:58:45 GMThttps://donge.org/posts/%E8%BD%AC-%E5%8F%B2%E4%B8%8A%E6%9C%80%E7%BB%8F%E5%85%B8%E7%9A%84linux%E5%86%85%E6%A0%B8%E5%AD%A6%E4%B9%A0%E6%96%B9%E6%B3%95%E8%AE%BA/https://donge.org/posts/%E8%BD%AC-%E5%8F%B2%E4%B8%8A%E6%9C%80%E7%BB%8F%E5%85%B8%E7%9A%84linux%E5%86%85%E6%A0%B8%E5%AD%A6%E4%B9%A0%E6%96%B9%E6%B3%95%E8%AE%BA/ Mon, 07 Jan 2013 07:07:55 GMThttps://donge.org/posts/%E7%94%A8github%E5%BC%80%E5%A7%8B%E6%95%B4%E7%90%86%E8%BF%87%E5%8E%BB%E5%8D%81%E5%87%A0%E5%B9%B4hack%E8%BF%87%E7%9A%84%E4%BB%A3%E7%A0%81/https://donge.org/posts/%E7%94%A8github%E5%BC%80%E5%A7%8B%E6%95%B4%E7%90%86%E8%BF%87%E5%8E%BB%E5%8D%81%E5%87%A0%E5%B9%B4hack%E8%BF%87%E7%9A%84%E4%BB%A3%E7%A0%81/周末终于可以休息和有一点自己的时间，用GitHub来给自己整理一个Code回忆录。Sun, 16 Sep 2012 06:02:38 GMThttps://donge.org/posts/fwlinkedin%E7%94%A8%E4%B8%80%E5%B9%85%E5%9B%BE%E5%91%8A%E8%AF%89%E4%BD%A0%E5%B7%A5%E7%A8%8B%E5%B8%88%E6%9C%80%E6%83%B3%E5%8E%BB%E7%9A%8410%E5%AE%B6%E7%A1%85%E8%B0%B7%E5%88%9B/https://donge.org/posts/fwlinkedin%E7%94%A8%E4%B8%80%E5%B9%85%E5%9B%BE%E5%91%8A%E8%AF%89%E4%BD%A0%E5%B7%A5%E7%A8%8B%E5%B8%88%E6%9C%80%E6%83%B3%E5%8E%BB%E7%9A%8410%E5%AE%B6%E7%A1%85%E8%B0%B7%E5%88%9B/donge: 最近很是迷茫，没有方向，来看看湾区工程师们的方向吧，哈哈~~明了了吧。Sat, 08 Sep 2012 22:41:59 GMThttps://donge.org/posts/%E5%BC%80%E5%A7%8B%E4%BD%BF%E7%94%A8%E7%A7%BB%E5%8A%A8%E5%AE%A2%E6%88%B7%E7%AB%AFwordpress/https://donge.org/posts/%E5%BC%80%E5%A7%8B%E4%BD%BF%E7%94%A8%E7%A7%BB%E5%8A%A8%E5%AE%A2%E6%88%B7%E7%AB%AFwordpress/这篇是用android app推送的blog。Sat, 25 Aug 2012 17:38:02 GMThttps://donge.org/posts/%E6%97%A0%E4%BA%BA%E5%85%B3%E6%B3%A8%E7%9A%84%E7%BA%AF%E6%B4%81%E7%9A%84%E6%AD%A3%E7%BB%8F%E7%9A%84%E4%B8%AA%E4%BA%BA%E5%8D%9A%E5%AE%A2%E4%B9%9F%E8%A2%AB%E9%BB%91%E4%BA%86/https://donge.org/posts/%E6%97%A0%E4%BA%BA%E5%85%B3%E6%B3%A8%E7%9A%84%E7%BA%AF%E6%B4%81%E7%9A%84%E6%AD%A3%E7%BB%8F%E7%9A%84%E4%B8%AA%E4%BA%BA%E5%8D%9A%E5%AE%A2%E4%B9%9F%E8%A2%AB%E9%BB%91%E4%BA%86/我的博客被黑客黑了，看样子是阿拉伯国家的友人，在无聊的日子里为大家带来了一丝欢乐~~Sun, 19 Feb 2012 11:41:53 GMThttps://donge.org/posts/fw-%E4%B8%BA%E7%A8%8B%E5%BA%8F%E5%91%98%E9%87%8F%E8%BA%AB%E5%AE%9A%E5%88%B6%E7%9A%8412%E4%B8%AA%E7%9B%AE%E6%A0%87/https://donge.org/posts/fw-%E4%B8%BA%E7%A8%8B%E5%BA%8F%E5%91%98%E9%87%8F%E8%BA%AB%E5%AE%9A%E5%88%B6%E7%9A%8412%E4%B8%AA%E7%9B%AE%E6%A0%87/对程序员们来说挑战自我非常重要，要么不断创新，要么技术停滞不前。新年伊始，我整理了12个月的目标，每个目标都是对技术或个人能力的挑战，而且可以年复一年循环使用。Sun, 15 Jan 2012 14:14:54 GMThttps://donge.org/posts/fw-%E4%B8%BA%E4%BB%80%E4%B9%88%E7%A8%8B%E5%BA%8F%E5%91%98%E7%9A%84%E7%A4%BE%E4%BC%9A%E5%9C%B0%E4%BD%8D%E4%B8%8D%E9%AB%98/https://donge.org/posts/fw-%E4%B8%BA%E4%BB%80%E4%B9%88%E7%A8%8B%E5%BA%8F%E5%91%98%E7%9A%84%E7%A4%BE%E4%BC%9A%E5%9C%B0%E4%BD%8D%E4%B8%8D%E9%AB%98/新闻来源:oschinaMon, 02 Jan 2012 02:40:26 GMThttps://donge.org/posts/%E6%88%91%E5%8F%B8%E6%9C%89%E6%89%8D%E7%9A%84%E5%B9%B4%E4%BC%9A%E7%89%87%E6%88%90%E7%A0%94%E9%A3%8E%E4%BA%91/https://donge.org/posts/%E6%88%91%E5%8F%B8%E6%9C%89%E6%89%8D%E7%9A%84%E5%B9%B4%E4%BC%9A%E7%89%87%E6%88%90%E7%A0%94%E9%A3%8E%E4%BA%91/很吊哦~~Fri, 30 Dec 2011 14:30:36 GMThttps://donge.org/posts/fw-%E4%B8%BA%E4%BB%80%E4%B9%88%E9%A1%B9%E7%9B%AE%E7%BB%8F%E7%90%86%E6%8B%BF%E7%9A%84%E9%92%B1%E6%AF%94%E7%A8%8B%E5%BA%8F%E5%91%98%E5%A4%9A/https://donge.org/posts/fw-%E4%B8%BA%E4%BB%80%E4%B9%88%E9%A1%B9%E7%9B%AE%E7%BB%8F%E7%90%86%E6%8B%BF%E7%9A%84%E9%92%B1%E6%AF%94%E7%A8%8B%E5%BA%8F%E5%91%98%E5%A4%9A/新闻来源:开源中国Mon, 21 Nov 2011 14:21:35 GMThttps://donge.org/posts/%E6%88%91%E7%BB%93%E5%A9%9A%E4%BA%86/https://donge.org/posts/%E6%88%91%E7%BB%93%E5%A9%9A%E4%BA%86/所有我认识的人和认识我的人，感谢你们在我的世界中出现。Sun, 23 Oct 2011 14:31:23 GMThttps://donge.org/posts/stay-hungry-stay-foolish/https://donge.org/posts/stay-hungry-stay-foolish/Fllow your hearts.Sun, 28 Aug 2011 14:18:14 GMThttps://donge.org/posts/%E8%B0%83%E6%95%B4%E5%BF%83%E6%80%81%E5%81%9A%E8%87%AA%E5%B7%B1%E5%96%9C%E6%AC%A2%E7%9A%84/https://donge.org/posts/%E8%B0%83%E6%95%B4%E5%BF%83%E6%80%81%E5%81%9A%E8%87%AA%E5%B7%B1%E5%96%9C%E6%AC%A2%E7%9A%84/最近很忙，工作和生活都很忙，当然很多时间花在了工作上。但反省了一下，效果不好。工作上效果期待得太高，然而这并不是我应该追求的东西。应该做自己喜欢的东西，用自己的方式。不能因为环境恶劣而让自己的价值观随环境恶化。稳住~~Sun, 28 Aug 2011 07:03:26 GMThttps://donge.org/posts/%E8%B5%A0%E9%80%81google%E9%82%80%E8%AF%B7%E8%A6%81%E7%9A%84re/https://donge.org/posts/%E8%B5%A0%E9%80%81google%E9%82%80%E8%AF%B7%E8%A6%81%E7%9A%84re/想体验一下Google+的圈子，发现一个认识的人都没有。谁需要邀请，回复Email，先来先得：）Fri, 12 Aug 2011 14:41:45 GMThttps://donge.org/posts/%E7%BA%A2%E9%A2%86%E5%B7%BE/https://donge.org/posts/%E7%BA%A2%E9%A2%86%E5%B7%BE/少先队员也是需要后台的。Wed, 03 Aug 2011 15:22:03 GMThttps://donge.org/posts/tom%E7%8C%AB%E7%9A%84%E5%AE%B6%E5%9C%A8%E4%B8%9C%E5%8C%97/https://donge.org/posts/tom%E7%8C%AB%E7%9A%84%E5%AE%B6%E5%9C%A8%E4%B8%9C%E5%8C%97/有一种Tom猫来自东北~~Sat, 23 Jul 2011 09:16:23 GMThttps://donge.org/posts/%E7%B2%BE%E8%AF%BBtrill%E5%8D%8F%E8%AE%AE/https://donge.org/posts/%E7%B2%BE%E8%AF%BBtrill%E5%8D%8F%E8%AE%AE/精读TRILL协议Mon, 18 Jul 2011 16:17:38 GMThttps://donge.org/posts/%E5%AE%89%E8%A3%85%E5%BC%80%E6%BA%90%E8%B7%AF%E7%94%B1%E5%B9%B3%E5%8F%B0quagga%E8%AE%B0/https://donge.org/posts/%E5%AE%89%E8%A3%85%E5%BC%80%E6%BA%90%E8%B7%AF%E7%94%B1%E5%B9%B3%E5%8F%B0quagga%E8%AE%B0/周末闲来无聊，准备学习一下Linux知识，索性想起了开源的路由系统Quagga，Quagga是为数不多的开源路由系统，源自Zebra（Zebra是斑马，Quagga是野驴，猜想也是一路的），Zebra大家可能还有人用过，不过早在N年前就没人Sun, 19 Jun 2011 13:23:00 GMThttps://donge.org/posts/zt%E5%AF%B9%E4%B8%8B%E4%B8%80%E4%BB%A3%E9%AB%98%E7%AB%AF%E9%80%9A%E4%BF%A1%E7%B3%BB%E7%BB%9F%E8%AE%BE%E8%AE%A1%E7%9A%84%E4%B8%83%E4%B8%AA%E5%B1%95%E6%9C%9B/https://donge.org/posts/zt%E5%AF%B9%E4%B8%8B%E4%B8%80%E4%BB%A3%E9%AB%98%E7%AB%AF%E9%80%9A%E4%BF%A1%E7%B3%BB%E7%BB%9F%E8%AE%BE%E8%AE%A1%E7%9A%84%E4%B8%83%E4%B8%AA%E5%B1%95%E6%9C%9B/转一篇陈首席的文章，慢慢理解一下~~Thu, 16 Jun 2011 16:13:59 GMThttps://donge.org/posts/%E4%BA%BA%E7%94%9F%E4%BA%94%E5%8D%81%E5%B9%B4%E5%A6%82%E6%A2%A6%E5%8F%88%E4%BC%BC%E5%B9%BB%E6%9C%89%E7%94%9F%E6%96%B9%E6%9C%89%E6%AD%BB%E5%A3%AE%E5%A3%AB%E4%BD%95%E6%89%80/https://donge.org/posts/%E4%BA%BA%E7%94%9F%E4%BA%94%E5%8D%81%E5%B9%B4%E5%A6%82%E6%A2%A6%E5%8F%88%E4%BC%BC%E5%B9%BB%E6%9C%89%E7%94%9F%E6%96%B9%E6%9C%89%E6%AD%BB%E5%A3%AE%E5%A3%AB%E4%BD%95%E6%89%80/连续奋战了10天的《信长之野望13：天道》，终于统一了日本，顺便连续强度测试了一下新的笔记本。Sun, 12 Jun 2011 07:23:47 GMThttps://donge.org/posts/hello-world-2/https://donge.org/posts/hello-world-2/Hi, I'm back again.Sat, 04 Jun 2011 01:18:10 GMThttps://donge.org/posts/%E5%9B%9E%E9%A1%BE%E6%9A%B4%E9%9B%AA%E7%9A%8420%E5%B9%B4/https://donge.org/posts/%E5%9B%9E%E9%A1%BE%E6%9A%B4%E9%9B%AA%E7%9A%8420%E5%B9%B4/一口气看完了，暴雪的20年，梦想和奋斗，创业励志片。Mon, 21 Mar 2011 07:23:58 GMThttps://donge.org/posts/fw-%E5%AF%B9%E7%A8%8B%E5%BA%8F%E5%91%98%E6%9C%80%E5%85%B7%E5%BD%B1%E5%93%8D%E7%9A%84%E4%B9%A6/https://donge.org/posts/fw-%E5%AF%B9%E7%A8%8B%E5%BA%8F%E5%91%98%E6%9C%80%E5%85%B7%E5%BD%B1%E5%93%8D%E7%9A%84%E4%B9%A6/http://stackoverflow.com/questions/1711/what-is-the-single-most-influential-book-every-programmer-should-read?tab=votes#Sun, 20 Mar 2011 01:13:37 GMThttps://donge.org/posts/fw-syslog%E7%9A%84%E7%BC%96%E7%A8%8B%E5%92%8C%E9%85%8D%E7%BD%AE/https://donge.org/posts/fw-syslog%E7%9A%84%E7%BC%96%E7%A8%8B%E5%92%8C%E9%85%8D%E7%BD%AE/FW: syslog的编程和配置Tue, 15 Mar 2011 08:25:40 GMThttps://donge.org/posts/nssa/https://donge.org/posts/nssa/NSSA原理简介Tue, 15 Mar 2011 07:49:39 GMThttps://donge.org/posts/%E5%8D%9A%E5%AE%A2%E5%8F%88%E9%87%8D%E6%96%B0%E5%BC%80%E5%BC%A0%E4%BA%86%E5%93%88%E5%93%88/https://donge.org/posts/%E5%8D%9A%E5%AE%A2%E5%8F%88%E9%87%8D%E6%96%B0%E5%BC%80%E5%BC%A0%E4%BA%86%E5%93%88%E5%93%88/网站关闭了几个月，又要重新开了，虽然没写几篇博客，也没人看，但好歹是个窝，没事发发牢骚，聊聊心情。Sun, 13 Mar 2011 07:46:34 GMT