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Category Archives: Murmuring
結果 Vim 7.3 出 patch level 1000 了…
前情提要:「Vim 7.4 準備中…」,本來以為會在 1000 出現前出 Vim 7.4。 結果剛剛在 Twitter 上看到「http://ftp.vim.org/pub/vim/patches/7.3/7.3.1000」出現,這是哪招… XD Bram Moolenaar 該不會自暴自棄決定等 9999 的時候再出 Vim 7.4 吧… XD
AWS 的規模…
Netcraft 分析 Amazon Web Services 的規模,以及使用 AWS 的 Heroku:「Amazon Web Services’ growth unrelenting」。 分析雖然只看了 HTTP 與 HTTPS 的部份,但以 AWS 的特性,應該是不差太多,所以相對性的數字應該是有參考價值的… 美西第一區是 2009 年十二月 (Expanding the AWS Footprint)。 新加坡是 2010 年四月 (Now Open: AWS Region in Asia Pacific)。 東京是 2011 年三月 … Continue reading
Yahoo! 買下 Tumblr…
Update:Tumblr 還沒有接受,目前是 Yahoo! 董事會已經同意這個金額,一切都還在談… 新聞報導在這:「Yahoo! Board Said to Weigh Billion-Dollar Tumblr Deal」,Yahoo! 以十一億美元現金買下 Tumblr。 能期待 Flickr 與 Tumblr 的結合嗎? 不過如果按照 Yahoo! 的慣例,又會整合 Yahoo! 的帳號系統,好像就不怎麼好用了…
電擊腦袋加強數學能力…
在 Slashdot 上看到「Brain Zapping Improves Math Ability」,裡面提到基礎數學能力不好的人可以透過電擊腦袋改善… XD 原報導在「Trouble With Math? Maybe You Should Get Your Brain Zapped」這篇,論文資料在「Long-Term Enhancement of Brain Function and Cognition Using Cognitive Training and Brain Stimulation」(有 PDF 可以看)。 同樣的研究在兩年半前就被提出來:「Brain Zaps Improve Math」,不過兩年半前的研究並沒有找出在現實生活中的改善幅度: However, it wasn’t clear … Continue reading
Percona XtraBackup 2.1.1
Percona 宣佈 Percona XtraBackup 2.1.1 (第一個 2.1 GA 的版本):「Announcing Percona XtraBackup 2.1.1 GA」。 這次的版本提供了 compact backup,備份的時候不要備份 secondary index (因為這可以再建出來),在很多 index 的表格會省下大量的空間 (以及備份的時間),不過還原的時候就得 rebuild,而非直接拿來用,算是讓操作者自己取捨…
白宮下令政府機關 Open Data
由白宮所下達的行政命令,命令全美政府機關在公開資訊時,必須提供電子格式,且可容易被程式讀取:「Executive Order — Making Open and Machine Readable the New Default for Government Information」。 重點是:資料不只要「公開」,還要「可被機器讀取」與「可被重複利用的授權」,並且要求政府單位強制提供。
Vim 7.4 準備中…
Bram Moolenaar 發表了 Vim 7.4 的計畫:「Plans for Vim 7.4」,不過理由居然是因為 patch level 要到 999 了…: We are now at patch level 7.3.931. In a few weeks we would reach 999. I don’t want to find out what happens if we go … Continue reading
DNS Hosting 的市佔率…
其實就是 Anycast DNS service… CloudHarmony 在前鎮子發表了 DNS Hosting 的市場佔有率:「DNS Marketshare – Alexa 10,000 + Fortune 500 – May 2013」。 比較有趣的是「Top 20 Alexa Site Changes – Apr 8 to May 6 2013」這段,可以看到很多公司跳去 Cotendo Advanced DNS… 不過我沒看懂從 Akamai 跳到 Cotendo Advanced DNS … Continue reading
MySQL 4.0 與 MySQL 5.6 的比較…
Facebook 的 MySQL 老大 Mark Callaghan 把 MySQL 古董版本 4.0 拿出來跟現在的 5.6 比較:「MySQL 5.6 versus 4.0 for a read-only workload」。 可以看到 MySQL 在 Read-Only 情況的效率進步 (Read-Only 的 lock issue 比較容易被克服,拿來比較會比較好看),這效能根本不能比 XDDD (要注意圖片的 y 軸不是 0 為起點)
BT Retail 開始實際測試 CGNAT…
英國的 ISP BT Retail 開始測試 CGNAT (Carrier-grade NAT) 了:「BT Begins Customer Tests of Carrier Grade NAT」。 空前但未必是絕後的大型 NAT 計畫,如果 CGNAT 可行,IPv6 會再往後延個好幾年吧… Update:被 comment 提醒跑去測試,發現中華的 3G 早就是了:(CGNAT 會用 100.64.0.0/10,範圍到 100.127.255.255)