DEAN LEE:/DEV/BLOG » logmicroscope

LogMicroscope:boost performance for logging system by 43%

Dean Lee — Wed, 02 Sep 2009 08:56:38 +0000

Recently,I have rewritten the logging engine for LogMicroscope,using circular-buffer in log writing threads,and WriteFileGather in file writing thread to gathers up the data from these discrete buffers in memory and transfers them "in place" as a single operation.

with WriteFIleGather, the disk is always keep busy without entering and leaving from kernel mode. log data can be written to disk at a rate that approaches the limits of the physical characteristics of the hardware device.that’s really boost the I/O performance.

because the CPU is mostly idle during write operation,to maximum the performance,I have compressed the data before writing to the disk to reduce the amount of data to be written,the compress is always faster than the I/O operation,so that I get the compression for “free”.

after these changes,the performance for logging system has increased by over 43%.

Logmicroscope@35 adds widgets to show site status

Dean Lee — Tue, 11 Nov 2008 16:33:25 +0000

Here is an example using the LogMicroscope widget on openid.35.com:

LogMicroscope@35 升级说明

Dean Lee — Sun, 19 Oct 2008 19:02:05 +0000

LogMicroscope本周末完成升级，本次升级增加了OpenId 登录支持，以及中英文版本自动切换功能。同时解决了在FireFox下菜单错位的问题。

OpenId登录支持

在保留使用原有passport登录的同时，新用户可以使用已有的OpenId 帐号进行登录（免注册）。如果尚无OpenId帐号，可以点击登录按钮下的注册连接，去OpenId.35.com注册一个OpenId帐号。

中英文版本切换

系统自动根据用户的操作系统选择对应的语言版本（中文或英文）。

LM.35.com reached a total of 367 days of continuous uptime

Dean Lee — Mon, 11 Aug 2008 06:47:01 +0000

I’m proudly to announce that LM.35.com has reached 367 days of continuous uptime without a single point of failure.LM.35.com has hosted more than one hundred thousand sites with almost sixty million hits per day.

The whole system is dedicated designed for performance(it’s written in C and Assembly Language with C# front-end ),although it’s one year old,it still maybe one of the fastest website analyzer on the market today:)

LogMicroscope will launch in USA with OpenID support

Dean Lee — Wed, 27 Jun 2007 14:32:04 +0000

LogMicroscope的英文版已经完成，目前正在进行最后的测试。

这个海外发行版将放弃Passport，改为使用OpenID身份认证系统。相对于封闭的Passport，开放和自由的OpenID一直是我更想做的东西，这次终于如愿以偿了：

Happy birthday to LogMicroscope

Dean Lee — Wed, 06 Jun 2007 06:51:24 +0000

转眼一年的光阴过去了，LogMicroscope从最初的几个个人站点，发展到今天的数万个商业站点;从每天的几十个Hits，发展到如今的每天几千万hits。一年前我不会想到会有这么好的结果，一直非常感激LogMicroscope的所有用户，没有广告宣传，是靠着他们的支持和口口相传，才发展到了现在这个规模。

去年很偶然的萌生了做这个项目的想法，只因为一句玩笑话，一个没有人当真的承诺，每天下了班就把自己关在一间没人的房间，用了一个月的时间：产品、开发、测试、安装、上线。当一切都已完成，我在blog上写道：

Check out the free website analysis program I developed in my free time,which named LogMicroscope.it’s a High-Performance,Real-Time website analyer written in C/C++ and Assembly Language, it’s absolute free for both personal and commercial use.no catches,no "spyware", no hidden costs anywhere.

一年前我孤独的在blog上宣布她的诞生，今天自己在这里默默庆祝她的生日。如果说做一件事情一定要有目的的话，LogMicroscope从出生开始，唯一的目的就是用自己的方式说："hello,world!".

Happy birthday,LogMicroscope.