Daiki

   Usually, our system becomes speed (performance) down, when we install many application. We can say same thing onto our android phone.    Some of my friends also said same thing. In this post, I did not any evaluate about anything. All of my writing in this post is only from my experience and feeling.   Many case, the performance down on android comes from RAM space. I used task manager for this problem 2years ago. And some people do it. Well, I found one thing. We can control the task execution because of the application. However, many of android task managers are executed as background process. Such kind of application will be one factor for speed down.  I removed such kind of background executed task manager.   This is my result to use android mobile phone. The problem for speed down is application cache and background executed process.  So, I use two application.   First application is app2sd. The main feature of app2sd is move application from phone strage to sd card. Ho

As the title, I think you should not update from old version of Ubuntu to latest version of ubuntu. Yes, if you customize so much and to re-customize is quite difficult then you can not avoid update.  However, if you do not customize so much then you should remove current installed ubuntu and cleaninstall the latest version. The reason is following. From 08.04, I had many troubles for ubuntu update especially X configuration. I use 4 different ubuntu desktop and 2 virtual computer on vmware. Only on vmware's ubuntu can be update safely. My friend is also using ubuntu. However, his computer also had many troubles. He using some server software on ubuntu. So, he did want to update from zero. And his computer got crash before x started. He used some days for repair that problem. For me, many of computers are only for desktop except one computer. So, usually, I update them and got crash then I remove them and reinstall from zero. Because, I don't want to use time for repair the

There are many pre-posts what I wrote bit but not completed in my dashboard ^^;;;

I tried to use Ubuntu 12.04 from last week. For the total view, I think 12.04 is the most stable version except default desktop. This meaning is that if you will clean-install from zero then the system is so stable. I tried to update from 11.10 to 12.04. The updating was completed. But it was not stable especially x-windows system. Usually, I work on ubuntu and intelli-j. So, x-windows system's problem is critical for me ^^;; Finally, I formated the system partition and reinstall 12.04 from zero. And, I changed window manager to GNOME, then the system became quite good. Before 11.10, my computer could not find sound board. ( my computer has one sound card, one onboard sound card, and one USB sound card) I think my computer could know the usual sound card when i installed 10.04(?). However, after some updating, the system could not find any sound card. So, I gave up to setting up and I bought new USB sound card. However, it was not worked on my computer, too.  However, when I

I use Xperia ray (ST18i). Xperia ray has multiple type of versions. I know JP version, US, North europa, Asia, and china. And, I know JP version is one of the worst version for new release because of economic and political reason. So, I bought from hong kong. However, china version also had different meaning of political reason. I thought it is good for SIM free version. However, the bad point is that the phone cannot access to google account even if it is android phone. So, i decided to flash the rom from 2.3 to 4.0. I used official rom for north europa version. Many sites explain how to change rom. So, I don't do this. This time, I got friend's help. Because, the rom flashing too is provided for Windows or Linux. I have linux machines but it has many risks for flashing rom with linux machine. I thought that I should wait for real release for my phone. The first release was last april for US version. And, I waited almost 1 month. However, it could not get new release. Th

  The first day when the google drive was released I try to use google drive. Actually, I thought I will not use google drive any more. Because, it has only 5GB strage for free and the provided client package for OSX was not work. And it was also difficult to manage the files from web browser.  The initial state, my home space had many files and directories what I created on google doc, google note, and etc. Actually, I didn't want to see them on this strage.....~_~;;;     Today, I try to install the google drive client for osx again. The client can be installed to my MacBookAir Lion. And, it works well. My personal opinion, the setting screen of sync policy has many spaces to improve. It is not so easy to understand. Finally, I removed all my data from my space. Because, I checked the select box what is only sync some folders to this computer. And, I sync them and I moved them into trash box ^^;;; Happily, I didn't need them.    Well, the client of google drive is almo

 I already wrote about following in some place.  And, I also wrote this in japanese first. Because, I wanted to know about this for japanese engineers.  Many of u know the earth quake in japan, it was occurred one years ago. And, many of online services was developed or tested for such kind of disaster attacked.  Before the earth quake, I had claim weak buttery on smart phone. In the place where is attacked by disaster, it needs more than one weeks for recovering the infrastructure. However, current mobile phone especially mobile phone can be used only half day to 2 days. It is not enough in such situation. It is enough to call at least one know person. It is one opinion. However, in many case, it is also impossible to call one phone call to known person due to the network traffic jam. On another hand, facebook tested a online service what we can tell our life through the facebook, when disaster will be happened. Well.... the last version of this service was needed to access to fa