prefix

What do 'instruction prefixes' mean in modern x86

由 淺唱寂寞╮ 提交于 2019-12-03 09:03:16
问题 To get an understanding on why Bulldozer was subpar I've been looking at Agner Fog's excellent microarchitecture book, in it on page 178 under bulldozer it has this paragraph. Instructions with up to three prefixes can be decoded in one clock cycle. There is a very large penalty for instructions with more than three prefixes. Instructions with 4-7 prefixes take 14-15 clock cycles extra to decode. Instructions with 8-11 prefixes take 20-22 clock cycles extra, and instructions with 12-14

How do I uninstall nodejs installed from pkg (Mac OS X)?

由 匿名 (未验证) 提交于 2019-12-03 09:02:45
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I installed NodeJS from pkg file on my Mac. Now I need to uninstall it. Tell me please how to do it. I tried to remove files from this list: lsbom -f -l -s -pf /var/db/receipts/org.nodejs.pkg.bom But node is still on my computer. 回答1: I ran: lsbom -f -l -s -pf /var/db/receipts/org.nodejs.pkg.bom \ | while read i; do sudo rm /usr/local/${i} done sudo rm -rf /usr/local/lib/node \ /usr/local/lib/node_modules \ /var/db/receipts/org.nodejs.* Coded into gist 2697848 Update It seems the receipts .bom file name may have changed so you may need to

Using Ant to merge two different properties files

由 匿名 (未验证) 提交于 2019-12-03 08:42:37
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a default properties file, and some deployment specific properties files that override certain settings from the default, based on deployment environment. I would like my Ant build script to merge the two properties files (overwriting default values with deployment specific values), and then output the resulting properties to a new file. I tried doing it like so but I was unsuccessful: <target depends="init" name="configure-target-environment"> <filterset id="application-properties-filterset"> <filtersfile file="${build.config.path}/$

Where does the k prefix for constants come from?

由 ￣綄美尐妖づ 提交于 2019-12-03 06:23:13
问题 it's a pretty common practice that constants are prefixed with k (e.g. k_pi ). But what does the k mean? Is it simply that c already meant char ? 回答1: I haven't seen it that much, but maybe it comes from certain languages' (the germanic ones in particular) spelling of the word constant - konstant . 回答2: It's a historical oddity, still common practice among teams who like to blindly apply coding standards that they don't understand. Long ago, most commercial programming languages were weakly

Linux configure/make, --prefix?

由 不打扰是莪最后的温柔 提交于 2019-12-03 04:04:56
问题 Bear with me, this one's not very easy to explain... I'm trying to configure , make and make install Xfce into my buildroot build directory. When configuring I'm using --prefix=/home/me/somefolder/mybuild/output/target so that it builds to the right folder, however when it's compressed and run I get errors from various config files where it's looking for files in /home/me/somefolder/mybuild/output/target (which of course doesn't exist.) How do I set what folder to build into, yet set a

Remove “d1p1” namespace prefix in DataContractSerializer XML output

由 匿名 (未验证) 提交于 2019-12-03 03:04:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm using DatacontractSerializer to serialize my domainModel into a xml file. I'm getting output like below. <z:anyType xmlns:i="http://www.w3.org/2001/XMLSchema-instance" z:Id="1" xmlns:d1p1="DCSerialization_IGITApproach" i:type="d1p1:X" xmlns:z="http://schemas.microsoft.com/2003/10/Serialization/"> <d1p1:Name z:Id="2">Ankit</d1p1:Name> <d1p1:PointsDictionary xmlns:d2p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays" z:Id="3" z:Size="1"> <d2p1:KeyValueOfstringPointsArrayq9VX7VJJ> <d2p1:Key z:Id="4">key1</d2p1:Key> <d2p1:Value

PrefixHeader.pch file can't find headers

由 匿名 (未验证) 提交于 2019-12-03 02:51:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a small prefix header file #ifndef UP_FOR_IT_PrefixHeader_pch #define UP_FOR_IT_PrefixHeader_pch #ifdef __OBJC__ #import <UIKit/UIKit.h> #import <Foundation/Foundation.h> #import <Parse/Parse.h> #import "ABConstants.h" #import "ABCache.h" #endif #endif it can't find Parse.h. I linked it from Link binary with libraries everything seems right but whatever I tried it does't compile. I tried removing the lib and import again but nothing changed. Removed indexes on derived data but still no clue. What should I try? It took 2

hashchange前端页面跳转

由 醉酒当歌 提交于 2019-12-03 02:49:22
现在有许多网站支持SPI（single page interface）,和传统的MPI（multi page interface）比起来，它无需载入新的网页，速度会快很多，用户体验也会好很多。唯一的问题是如果你的页面改动很大，比如切换tab，页面大部分内容由ajax载入。用户会以为跳转到另一个页面，这时如果他们点击后退按钮，SPI就会出问题了，因为我们只有一个页面。 解决办法就是使用hashchange事件。一方面是当你切换tab时，在url里加入hash，javascript里是location.hash；另一方面是当hash变化是捕捉到该事件，大部分新的浏览器支持onhashchange事件。 至于IE6,7，我们需要用iframe去模拟这两个方面。 这里推荐一个jquery plugin: http://benalman.com/projects/jquery-hashchange-plugin/ 我的一个例子： //include jquery plugin var prefix = 'hash-'; // Bind the event. $(window).hashchange( function(){ var hash = window.location.hash.replace( /^[^#]*#?(.*)$/, '$1' ); if((hash == (prefix

nvm is not compatible with the npm config “prefix” option:

由 匿名 (未验证) 提交于 2019-12-03 02:44:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to run another NodeJS version with nvm but getting this error: $ nvm use v4.2.4 nvm is not compatible with the npm config "prefix" option: currently set to "/Users/z/.npm-global" Run `npm config delete prefix` or `nvm use --delete-prefix v4.2.4` to unset it. I have my prefix set on purpose to avoid sudo npm (see https://docs.npmjs.com/getting-started/fixing-npm-permissions ). Is there any way I can use nvm without losing my prefix for globally installed packages? 回答1: Simply Delete and Reset the prefix $ npm config delete prefix

Getting “WARN org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI …” when trying to setup spring servlet

由 匿名 (未验证) 提交于 2019-12-03 02:34:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am trying to setup a Spring MVC project. I have added a dispatcher servlet, a jsp and setup the web.xml file. But I keep getting WARN org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/safesite/WEB-INF/jsp/hello.jsp] in DispatcherServlet with name 'HelloWeb' Here's my web.xml ... <context-param> <description>Vaadin production mode</description> <param-name>productionMode</param-name> <param-value>true</param-value> </context-param> <!-- To load the Spring context --> <listener> <listener-class>org
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