刚发现的一个好词： song binge。

To become obsessed with a certain song for a period of time, listening to it on repeat for hours until you finally become annoyed with it.

To binge on a song or artist. The act of repeatedly and obsessively listening to a particular song or artist over a relatively short period of time. Periods of song binging are followed by extended periods of skipping the certain track or artist, leaving them unplayed.

我就经常会出现这种情形。碰到一首喜欢的歌，反反复复翻来覆去地听，如果是有MV的，我还会连带着看N遍MV。

一直觉得应该有个专门的词形容这种行为。能发现song binge这个词真让我心满意足，实在太贴切了。

Bonus video: Maria Arredondo - Burning （目前这首歌让我song binge到天昏地暗！）

In the era of Web 2.0 traditional approaches to capacity planning are often difficult to implement. Guerrilla Capacity Planning facilitates rapid forecasting of capacity requirements based on the opportunistic use of whatever performance data and tools are available.

One unique Guerrilla tool is Virtual Load Testing, based on Dr. Gunther's "Universal Law of Computational Scaling", which provides a highly cost-effective method for assessing application scalability. Neil Gunther, M.Sc., Ph.D. is an internationally recognized computer system performance consultant who founded Performance Dynamics Company in 1994.

Some reasons why you should understand this law:

1. A lot of people use the term "scalability" without clearly defining it, let alone defining it quantitatively. Computer system scalability must be quantified. If you can't quantify it, you can't guarantee it. The universal law of computational scaling provides that quantification.

2. One the greatest impediments to applying queueing theory models (whether analytic or simulation) is the inscrutibility of service times within an application. Every queueing facility in a performance model requires a service time as an input parameter. No service time, no queue. Without the appropriate queues in the model, system performance metrics like throughtput and response time, cannot be predicted. The universal law of computational scaling leapfrogs this entire problem by NOT requiring ANY low-level service time measurements as inputs.

read more

一个人所能记住的东西： * 对于听到的能记住10% * 对于看到的能记住35% * 对于同时听到和看到的能记住55% * 对于自己重新表述的能记住70% * 对于自己重新表述并且动手做的能记住90%

计划在9月底发布BugFree 2.0.2。主要更新如下：

• 为了更好的发展和推广BugFree，我们将把BugFree的License由GPL修改为BSD License
• 提供BugFree OpenAPI对外程序接口
• 其他功能改进
• 增加复制Bug功能
• 直接导出查询结果到Excel表格
• 解决方案是Duplicate时，自动在原始的Bug下加入一条记录
• Bug增加“处理状态”，记录本地修复、代码提交等附属状态信息
• 验证并关闭的Bug自动发送邮件通知给解决者
• Cookie记录最近选择的项目
• 若干小的Bug Fix

今天是网络创业盛会TechCrunch50开幕的日子，也是DEMO老牌创业盛会开幕的日子。Mr.6有篇贴子讲了关于这两个会议的八卦故事。

網路創業盛會TC50與DEMO Fall本週同步上演大對槓，誰贏？
http://mr6.cc/?p=2193

首先來看看雙方去年號稱的參加人數，據TC40的記錄，去年他們一場就有 1100位觀眾，其中800位真的付了2500美元的超昂貴門票費，單單門票一場就得250萬美元，還要加上贊助廠商等等。而DEMO這邊則有700位付費進入的觀眾，門票費為3000美元，若再有些網站公司真的付了18500美元搏一上台機會，賺得絕不比TC少。至少比目前來看，還沒有衰退的跡象。

那是去年，但今年的狀況呢？雖然矽谷的網路人大多都看好TC50，但矽谷的網路人不見得代表全部的網路。這點尤可從媒體參加狀況略知一二，據CNET這篇文章說，目前看起來，可確定的是DEMO已經贏得傳統媒體的青睞，高達100多間正式媒體會派人到聖地亞哥，其中華爾街日報等等據說只去DEMO，不去TC50。但是，TC50顯然吸引了更厲害的媒體──網路部落客們，五大部落客幾乎都以TC50為重心。當然，仍有媒體如CNET、Wired、BusinessWeek，會派出兩組人馬出來。

最趣味的是，單看這些派兩組人馬的媒體就可以隱約察覺一般人對DEMO與TC50看法的差異。像BusinessWeek，就是派他們的電子媒體記者到TC50，紙本媒體記者則到DEMO。換句話說，服務年輕及重度網路使用者讀者的記者就到TC50，服務資深與輕度網路使用者讀者的就到DEMO。對他們來說，兩者都不錯，但兩者也都有缺點，DEMO 的缺點就是剛剛說它是付費上台，所以上台這些公司不一定是當年最棒的公司（窮網站可能就上不去了），而TC50的問題，則是它太TechCrunch個人風格，雖掛著「公平」的招牌，但仍被把持在幾個人與幾個組織的手上，當然TC50本身仍處於剛起創的非常時期這樣做也是對的。

全文看这里。

TechCrunch从一个Blog起步，现在已经发展成为为网络创业公司服务的新兴媒体公司，除了TechCrunch.com这个主blog（包括多个语言版本），还包括TechCrunch 50创业公司会议，创业公司档案数据库CrunchBase.com，网络项目邀请分发社区Beta Invites(http://www.inviteshare.com)等等。

今年的TechCrunch 50通过USTREAM提供实时视频转播，转播网址这里：http://www.ustream.tv/channel/live-from-techcrunch50，在这个页面上你可以拷贝代码贴如下这个播放器到你自己的blog上。

Free video streaming by Ustream

TechCrunch 50的主网站有丰富的内容，网址在这里：http://www.techcrunch50.com/2008/conference/

今天小容看到的三个亮点是：

BlahGirls.com

一句话评论：这是一家以卡通形象来包装新媒体内容的网站。小容看到这个项目的时候，立即想到或许张小盒也可以走这个路线……

Yammer.com

一句话评论：这是企业级Twitter.com。之前已经听说过许多Twitter的模仿者，而这个是让人激动人心的一个。小容去年大概这个时候去拜访一个朋友搞的创业孵化器的时候，就在想或许在这个孵化器大门口挂个大屏幕，让孵化器的所有人可以发Twitter到大屏幕上。

OtherInBox.com

一句话评论：这个通过中介地址派生个性化电子邮件地址化身，让人更好地管理电子邮件收件箱的最新应用。这些电子邮件地址化身可以用来注册各个网站，这些网站的邮件提醒会自动过滤到指定的地方。早上小容刚刚在Gmail里增加了一些过滤器，将Inbox的未读数目从700+降到了280+

另外值得一看的周边消息：

Let’s cry for the poor fragmented, underreported startups

Startups: your web site sucks

TechCrunch’s startups’ web sites suck too

上面三篇是Robert Scoble对Demo和TC50的批评，创业者倒是应该从另外一个角度来看看Scoble的批评。

看TechCrunch50还有一种方法，那就是看这里的TechCrunch50的聚合门户：
http://www.youcit.com/techcrunch50/

这个聚合门户是由Sean Percival使用Sweetcron软件搭建，你也可以用Sweetcron搭建自己想关心的meme门户。

作者 AdSense 支持小组


告诉大家一个好消息 – Google 近期推出了Google Chrome 浏览器测试版。我们强烈建议大家下载试用。

Google Chrome 浏览器非常简洁易用，您会发现他更快、更安全、更稳定。您可以在这里了解更多功能。

Google Chrome 还具有很强的兼容性，您的网站和广告在Chrome 浏览器中仍然会正常显示。即使您的网站是基于 Safari 浏览器搭建的，也可以与Chrome 浏览器很好地兼容。如果您对网站兼容性有任何问题，可以参考这些帮助信息。

We gathered together our ideas of MySQL improvements on this page http://www.percona.com/percona-lab/dev-plan.html
and we are going to implement some of them.
My favorite one is - make InnoDB files .ibd (one created with –innodb-file-per-table=1) movable from one server to another, however it is sort of challenging.
Probably next one patch we want to integrate is Google’s smp-fix or Yasufumi’s rw-locks (we are going to test both before)

On this page http://www.percona.com/percona-lab.html you can find links to our current binaries and patches.

---

Entry posted by Vadim | 3 comments

Add to: | | | |

Stefan Esser recently warned developers of the dangers of SQL Column Truncation and the weakness of mt_rand().  With his help we worked around these problems and are now releasing WordPress 2.6.2.  If you allow open registration on your blog, you should definitely upgrade.  With open registration enabled, it is possible in WordPress versions 2.6.1 and earlier to craft a username such that it will allow resetting another user’s password to a randomly generated password.  The randomly generated password is not disclosed to the attacker, so this problem by itself is annoying but not a security exploit.  However, this attack coupled with a weakness in the random number seeding in mt_rand() could be used to predict the randomly generated password.  Stefan Esser will release details of the complete attack shortly.  The attack is difficult to accomplish,  but its mere possibility means we recommend upgrading to 2.6.2.

Other PHP apps are susceptible to this class of attack.  To protect all of your apps, grab the latest version of Suhosin.  If you’ve already updated Suhosin, your existing WordPress install is already protected from the full exploit.  You should still upgrade to 2.6.2 if you allow open user registration so as to prevent the possibility of passwords being randomized.

2.6.2 also contains a handful of bug fixes.  Check out the full changeset and list of changed files.