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Beijing LUG Hackergotchi Heads
http://planet.beijinglug.org/heads.html
Every second Tuesday of the month! Is a window into the world, work and lives of Beijing LUG members and contributors. Updated on September 01, 2016 - 12:00 UTC. Entries are normalised to UTC time. Brought to you by the Planet. Aggregator, cron, Python. Who kindly host the BLUG server). Beautiful template adapted from an early design by Steven Garrity. Concept by Seth Nickell. Planet BLUG is edited by Fred. Please contact him if you have a question or would like your blog added to the feed.
块设备层
http://blog.donghao.org/块设备层
March 20, 2013. Linux Kernel And Tao 涛哥. Meets Raspberry Pi 朱鸿.
工作故事 类目的文章存档
http://blog.donghao.org/category/工作故事
April 24, 2014. 而且现在出现CPU顶满时，不仅gdb不返回，连perf record -a -g都无法用Ctrl c来停止了，仔细top命令看了一下，原来系统的sys是100%，usr几乎为0%，也就是说，是卡在内核里了，难怪perf不好使。 提醒我 用 echo t /proc/sysrq-trigger 把内核栈整个打出来。 Spin lock 0x1e/0x30 Apr 25 22:37:57 v3 kernel: [. Lru cache add 0x40/0x90 Apr 25 22:37:57 v3 kernel: [. Cond resched 0x2a/0x40 Apr 25 22:37:57 v3 kernel: [. Cond resched 0x30/0x40 Apr 25 22:37:57 v3 kernel: [. Migrate pages 0x9d/0x4b0 Apr 25 22:37:57 v3 kernel: [. Compaction alloc 0x0/0x3e0 Apr 25 22:37:57 v3 kernel: [. Get user page...
arm server 标签的文章存档
http://blog.donghao.org/tag/arm-server
March 29, 2013. 最近测试arm服务器 装的是ubuntu 12.10 发现一个问题，就是对比测试atom和arm时，跑c语言程序大家性能差不多，跑java程序却相差很远. Https:/ github.com/RobinDong/arm server/tree/master/MonteCarlo. 里面headless是不带图形库的，于是下了一个 ARMv7 Linux - Headless - Server Compiler EABI, VFP, SoftFP ABI, Little Endian ，解开后运行 ejre1.7.0 10/bin/java，结果却显示. Bash: ejre1.7.0 10/bin/java: No such file or directory. 上也遇到过类似的报错，明明是个静态的二进制可运行文件，一跑就说"No such file"云云，这次好好找了一下解决方法，果然在 pandaboard. Https:/ groups.google.com/forum/? Sudo apt-get install -y libc6-armel libsfgcc1.
追踪CPU跑满
http://blog.donghao.org/2014/04/24/追踪cpu跑满
April 24, 2014. 而且现在出现CPU顶满时，不仅gdb不返回，连perf record -a -g都无法用Ctrl c来停止了，仔细top命令看了一下，原来系统的sys是100%，usr几乎为0%，也就是说，是卡在内核里了，难怪perf不好使。 提醒我 用 echo t /proc/sysrq-trigger 把内核栈整个打出来。 Spin lock 0x1e/0x30 Apr 25 22:37:57 v3 kernel: [. Lru cache add 0x40/0x90 Apr 25 22:37:57 v3 kernel: [. Cond resched 0x2a/0x40 Apr 25 22:37:57 v3 kernel: [. Cond resched 0x30/0x40 Apr 25 22:37:57 v3 kernel: [. Migrate pages 0x9d/0x4b0 Apr 25 22:37:57 v3 kernel: [. Compaction alloc 0x0/0x3e0 Apr 25 22:37:57 v3 kernel: [. Get user page...
交流会小结
http://blog.donghao.org/2014/07/24/交流会小结
July 24, 2014. 更简单且随机写性能不输ext4 这点大家有争论，有人认为这个评测应该写满存储卡再全删掉，再重新测试，也就是要把FTL打乱了再测，会更公正 ，不过来自阿里云的 刘铮. 也有工程师向百度提问为什么用ARM服务器 真的那么需要省电吗 百度的 谢广军. OceanStore 9000里既有硬盘也有SSD，SSD用来做自动分层的缓存层 这大概是为了成本 ，其中硬盘用 RAID 2.0. Linux Kernel And Tao 涛哥. Meets Raspberry Pi 朱鸿.
存储与集群
http://blog.donghao.org/存储与集群
March 23, 2013. Linux Kernel And Tao 涛哥. Meets Raspberry Pi 朱鸿.
业界分享 类目的文章存档
http://blog.donghao.org/category/业界分享
July 24, 2014. 更简单且随机写性能不输ext4 这点大家有争论，有人认为这个评测应该写满存储卡再全删掉，再重新测试，也就是要把FTL打乱了再测，会更公正 ，不过来自阿里云的 刘铮. 也有工程师向百度提问为什么用ARM服务器 真的那么需要省电吗 百度的 谢广军. OceanStore 9000里既有硬盘也有SSD，SSD用来做自动分层的缓存层 这大概是为了成本 ，其中硬盘用 RAID 2.0. April 2, 2014. 这次LSF/MM上关于page cache的讨论有两个，一个是关于32位机器上大空间块设备寻址的历史遗留问题 另一个是支持大于4k内存页的page cache。 这个问题说来很简单，32位机器的内存寻址范围是2 32=4GB，目前Linux Kernel常规内存页大小为4k，因此对于系统page cache来讲，最大可以支持的磁盘设备的容量为4GB x 4KB = 16TB。 此外，Dave Chinner还提到了让文件系统支持大于page size的block size。 最终的结论还是那句很简单的 show me the code。 十 23, 2013).
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Coluna Extra
Sexta-feira, 23 de maio de 2014. Após 10 anos, o último post do Coluna Extra. NOVO BLOG: Primeiro Digital - www.primeirodigital.com.br. Há exatos 10 anos, o Coluna Extra. Entrava no ar. Considero a data - 23 de maio de 2004. Como minha entrada oficial no webjornalismo, ainda que antes já houvesse experimentado outras plataformas de blog que não o Blogger. E também feito a newsletter Alex Informa. Entre 2000 e 2001. Estou completando, por tabela, 10 anos de jornalismo online. Foi com o Coluna Extra. E apr...
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Brown Hues by fifteeneach on Polyvore.com Check out some women fashion collages from Jacco Fashion*. Surf by kryptonitesmile on Polyvore.com by Vincent #purple #mens #menswear #guy #surf #beach #dude Check out some women fashion collages from Jacco Fashion*. Damon Salvatore by dee-lite on Polyvore.com Vamp style! Check out some women fashion collages from Jacco Fashion*. Laquo; Older Entries. Get men's urban clothing from Colveta. Send me the new arrivals! Men’s Urban Clothing. January 27, 2015.
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Technology : Innovation : Social Media. Two Degrees Partners with Microsoft BizSpark for Startups. I’m pleased to announce that Two Degrees Strategy and Development. Has become a Network Partner in Microsoft BizSpark. A new global program designed to accelerate the success of early stage Startups. BizSpark provides fast, easy access to current full-featured Microsoft. For additional details on the program, visit http:/ www.microsoft.com/BizSpark. If you would like an enrollment invitation. Brian Cuban, D...
colwiz - Blog -
Mayor of London Office tours tech startup colwiz. December 8th, 2017. As part of a mission to the region promoting post-Brexit business, delegates from the Mayor of London’s Office visit Karachi hub of London-backed startup colwiz. The Deputy Mayor of London was in Karachi this week as part of a regional …. Off to Frankfurt Book Fair – Bigger, Bolder and Faster! October 9th, 2017. Announcing Olympics Research Medals – Explore who is leading the science behind Olympic Sports. August 19th, 2016. Available ...
Vintage Motorcycle and Bicycle Wheel-building Workshop
Skip to primary content. Skip to secondary content. Sturmey Archer 3-speed Hubs. Sturmey Archer 4-speed Hubs. Sturmey Archer Hub Repairs and Servicing. Bicycle Wheel Building Course. Motorcycle Wheel Building Course. Vintage Motorcycle and Bicycle Wheel Building. Is your old bike looking a bit tired? Based in the town of Hailsham, East Sussex, Colwood Wheel Works specialises in older bicycle. Wheel repairs and restoration. To teach others these skills. A Passion For Bikes and Motorbikes. Wheels built to ...
An enjoyed kernel apprentice
An enjoyed kernel apprentice. March 13, 2014. A six classes OS kernel development course. Filed under: Basic Knowledge. 8212; colyli @ 12:17 pm. Very soon, we agreed on the outline of this course. This was a six classes course, each class taking 120 150 minutes,. First class: Loading Kernel. This class introduced how a runnable OS kernel was loaded by boot loader and how the first instruction of the kernel was executed. Second class: Protected Mode Programming. Third class: System Call. Finally there wer...
Colyer Blog
Office and Graphic Supplies. How green is your studio? Colyer London, 27/06/2016. At Colyer we’re all about helping you get all your colours beautiful and accurate but we do have a particular interest (and expertise) in green! The environment and our impact on it, is a key area of focus for us when we’re developing new products and services. Colyer London, 16/06/2016. Cutting your print costs - our Top Ten. Colyer London, 09/06/2016. Fantastic, flexible IT Support. Colyer London, 24/05/2016. Whether you ...
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【女性コンサルタントのメモランダム】
人事 組織コンサルティングの株式会社コムファクト 代表、曽根岡由美子のプライベート ブログです。 2011年7月 9日 08:03. ワイアット在籍時代は 子育て 、そして、独立後は 親 の問題。 結局、 私にとっての 両立 とは、. 仕事をやり遂げることへの責任 と 家族へのコミットメント のバランスをとること. 2011年5月30日 09:35. 12月9日 木 に、 ＮＴＴコミュニケーションズが、3385名の顧客の氏名とアドレスを漏洩した事故. 事の起こりは、12月9日 木 13 43のＮＴＴコミュニケーションズからの 重要 印つきのメール。 表題が 重要 となっていたので、なんとなく 内容とアンバランスだなぁ と思いつつ読み流し、. 同日２１ 18に、今度は お詫び というメールが届きました。 その後の対応 お詫び メール ににじみ出ている 安易な姿勢、事の重大さに対する感度の低さ. 2010年12月14日 23:56. 基本的に、子育て ワンコ育て が好きなんだなぁ と、最近改めて自覚しています。 当日の様子は、この お友達チワワ兄妹の よもぎくん つくしちゃん のブログ. 卒業生 退職者 に...
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Neues von Com Dortmund | Lesen Sie über unsere Neuigkeiten und Aktionen
Neues von Com Dortmund. Lesen Sie über unsere Neuigkeiten und Aktionen. Mr Rabbit ist wieder unterwegs. Mr Rabbit (landläufig bekannt als “der Osterhase”) ist im Anmarsch und hat natürlich seine bunten Eier mit im Gepäck, hartgekocht und mühevoll mit den Händen – ähh – Pfoten bemalt. Weil Mr. Rabbit denkt, die Eier immer verstecken zu müssen, spendiert er uns zum Wochenende zwei weitere Tage zum Suchen. Auch nach Ostern verwöhnen wir Sie und Ihre Kollegen natürlich wieder nur mit dem gelben vom Ei! Sie m...
