Category Archives: Hardware

Firefox 的大量寫入對 SSD 的影響

Posted on September 24, 2016 by Gea-Suan Lin

在「Firefox is eating your SSD - here is how to fix it」這邊講到 Firefox 寫入對 SSD 的影響，先引用文章裡的解法： After some digging, I found out that this behavior is controlled by a parameter that you can access through typing “about:config” in the address … Continue reading →

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PostgreSQL 上，直接將 SSD 的內容送到 GPU 上，加速讀取速度

Posted on September 23, 2016 by Gea-Suan Lin

在 PostgreSQL 上針對讀取檔案到 GPU 上的成果：「GpuScan + SSD-to-GPU Direct DMA」(日文版)、「(EN) GpuScan + SSD-to-GPU Direct DMA」(英文版)。 主要的原因在於雖然已經有 PGStorm 讓 PostgreSQL 把運算丟到 GPU 上加速，但從 disk 讀到 GPU 這段還是有改善的空間： PG-Strom that is an extension of PostgreSQL to off-load multiple SQL workloads on GPU devices, … Continue reading →

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ING Bank 在羅馬尼亞的機房出事...

Posted on September 22, 2016 by Gea-Suan Lin

ING Bank 在羅馬尼亞的機房發生資料損毀：「A Loud Sound Just Shut Down a Bank's Data Center for 10 Hours」。 不過原因是因為火災測試時噴發的音量太大，導致硬碟故障 XDDD ING Bank’s main data center in Bucharest, Romania, was severely damaged over the weekend during a fire extinguishing test. In what is a … Continue reading →

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Lenovo 開始出 Microsoft-only 機了，其他的 OS 都會被鎖住不能用

Posted on September 22, 2016 by Gea-Suan Lin

有人在 Reddit 上抱怨買了一台 Lenovo 的機器卻不能裝 Linux，因為會抓不到硬碟：「Warning: Microsoft Signature PC program now requires that you can't run Linux. Lenovo's recent Ultrabooks among affected systems.」，官方回覆是： This system has a Signature Edition of Windows 10 Home installed. It is locked per our agreement … Continue reading →

Posted in Computer, Hardware, Linux, Murmuring, OS, Security, Software, Windows | Tagged , , , , , , , , | 1 Comment

Linode 東京機房擴充的工作...

Posted on September 22, 2016 by Gea-Suan Lin

在 Twitter 上看到 Linode 在處理東京機房的照片 (應該是還在美國？)： Getting ready for our Tokyo trip. pic.twitter.com/N3g7lqCscE — Linode (@linode) September 20, 2016 這樣年底應該有機會看到了？

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CPU 指令的速度

Posted on September 14, 2016 by Gea-Suan Lin

在「Infographics: Operation Costs in CPU Clock Cycles」這邊看到張有趣的圖片： 文章大致說明了底層指令速度差異的由來，另外也提到了 C/C++ Function Calls、Indirect and Virtual Calls、Allocations、Kernel Calls、C++ Exceptions 以及 Thread Context Switches 這些高階面向的 CPU clock cycle 差異... 不過重點還是在這張圖 XD

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不打開書直接掃描內容

Posted on September 14, 2016 by Gea-Suan Lin

MIT Media Lab 弄出個好玩的東西，可以不打開書直接掃描書的內容：「Can computers read through a book page by page without opening it?」，主標題是「Terahertz time-gated spectral imaging for content extraction through layered structures」。 用 100Ghz 到 3Thz 的電磁波掃描： In our new study we explore a range of frequencies from … Continue reading →

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FASTER 海纜的消息

Posted on September 13, 2016 by Gea-Suan Lin

Google 也參與的海纜 FASTER 陸陸續續放出消息了，這次是放出台灣日本之間的新聞：「Making Google a little bit FASTER across Asia」。 2014 年時對外宣佈：「Google, Asian companies to build $300 mn super-high-speed Trans-Pacific underwater cable system」，不過當時提到是 60Tbps，維基百科上的資料也是如此： FASTER will have the design capacity of 60 Tbps (100Gb/s x 100 wavelengths x 6 … Continue reading →

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印度的免費 4G...

Posted on September 7, 2016 by Gea-Suan Lin

印度最富有的企業家決定提供免費的 4G 網路讓更多人可以上網：「India's richest man offers free 4G to one billion people」： India's richest man is rolling out a $20 billion mobile network that could bring lightning-fast Internet to hundreds of millions of people. 到 2016 年底： Indians will be … Continue reading →

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玩 Pokémon Go 抓怪用的 iPhone 手機殼...

Posted on September 2, 2016 by Gea-Suan Lin

看到「This iPhone thong case will help you catch 'em all in 'Pokémon Go'」這個，光看圖就知道意思了： 應該是用 3D Printer 做出來的： If this sounds familiar, it's basically the commercialized, rubberized version of the 3D-printed Poké Ball "aimer" case that one guy made. 不過這不能丟 Curveball … Continue reading →

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