Understand Linux-based RAM and it’s cache

Linux Operating System that powered by Linux kernel have an advanced disk cache algorithm that used to store frequently access data from Hard disk.

This is to explain why some Linux server’s RAM still getting high memory usage even you upgrade your RAM.

To find out how much memory using by the Linux-based server, you may use the linux command “free” to track it. To get the detailed/actual memory usage, you may run the following command from your Linux box.

free -m

You should get some result as below,

             total       used       free     shared    buffers     cached
Mem:         15905       2879      13026          0        384        900
-/+ buffers/cache:       1593      14311
Swap:         3999          0       3999

With the result above, you may see that the used memory is 2879MB and free memory is 13026MB. However, the cached memory is 1593MB while the actual free memory will be 14311MB.

Microsoft Office 2010 Beta Available

Microsoft New Launch Product -> Microsoft Office 2010.

To be more precise, M$ has made available for the Beta version of Office for public and they most important of this Betas are,

  • Expiration: Office 2010 beta will expire on October 31st, 2010. It will become non-functional at this point
  • Multiple Versions: Previous Office versions can be upgraded to Office 2010. It is also possible to select customize during installation to install Office 2010 in a separate location.
  • Hardware Requirements: Microsoft Office 2010 has the same hardware requirements as Office 2007 (Windows XP SP3, Windows Vista or Windows 7, 500 Mhz or higher, 256 Megabytes of computer memory or higher, hard disk 1.5 Gigabyte
  • Languages: English, Chinese Simplified, German, French, Japanese, Russian, Spanish

Microsoft is offering two Office 2010 editions for download: Microsoft Office Professional 2010 and Microsoft Office Home and Business 2010. The main difference between those two versions is the number of applications that are made available to the user:

  • Office Home and Business 2010 beta – Includes: Word, Excel, PowerPoint, OneNote, Outlook, and Office Web Apps
  • Office Professional 2010 beta – Includes: Word, Excel, PowerPoint, OneNote, Outlook, Access, Publisher and Office Web Apps

Original URL:
http://us1.office2010beta.microsoft.com/default.aspx?culture=en-US