Blue Gene (bluegene)'s Public Profile in the Diigo Community

I am interested in My interests include ethical hacking and exploring new technologies particularly those that improve our everyday living. If you've seen any resourceful bookmarks in my profile then that is because I asked lots of questions to myself when I was learning new things and stumbled on the answers on-line.. My Heros are Steve Woz,Steve Jobs,Eric Schmidt.

Member since Aug 18, 2008, follows 3 people, 0 public groups, 888 public bookmarks (976 total).

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Top Tags:	tools(132), Linux(102), programming(86), security(76), java(53), logs(51), networking(37), tutorial(34), HackingExposed(33), interview(33)

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Recent Bookmarks and Annotations

Mac Beginner's Guide - Mac Guides about 11 hours ago
Theme Park Maps on 2009-11-13
cdecl: C gibberish ↔ English on 2009-11-13
Access Mask Format (Windows) on 2009-11-12
Speccy Gives You Detailed Information About Your Hardware [Downloads] on 2009-11-10
Quick Overview of Object Access Auditing in Windows on 2009-11-10
Microsoft Windows XP - Task Manager overview on 2009-10-27
Mark's Blog : Pushing the Limits of Windows: Virtual Memory on 2009-10-27
- virtual memory
- virtual memory
- 3 more annotations...
- - it allows more processes to execute concurrently than might otherwise fit in physical memory.
  - 64-bit processes use 64-bit pointers, so their theoretical maximum address space is 16 exabytes (2^64). However, Windows doesn’t divide the address space evenly between the active process and the system, but instead defines a region in the address space for the process and others for various system memory resources, like system page table entries (PTEs), the file cache, and paged and non-paged pools.
  - The size of the process address space is different on IA64 and x64 versions of Windows where the sizes were chosen by balancing what applications need against the memory costs of the overhead (page table pages and translation lookaside buffer - TLB - entries) needed to support the address space. On x64, that’s 8192GB (8TB) and on IA64 it’s 7168GB (7TB - the 1TB difference from x64 comes from the fact that the top level page directory on IA64 reserves slots for Wow64 mappings).
Mark's Blog : Pushing the Limits of Windows: Physical Memory on 2009-10-26
- physical memory is in essence a window into the code and data used over time
- amount of memory can therefore affect
- 14 more annotations...
- - performance
  - operating system buffers backed by physical memory, is obviously constrained by physical memory
  - the amount of non-paged pool
  - system virtual memory limit
  - sum of roughly the size of physical memory plus the maximum configured size of any paging files
  - limit the maximum number of processes
  - hardware limitations, licensing, operating system data structures, and driver compatibility
  - support for physical memory
  - the 32-bit version of Windows Server 2008 Standard supports only 4GB, while the 32-bit Windows Server 2008 Datacenter supports 64GB. Likewise, the 64-bit Windows Server 2008 Standard supports 32GB and the 64-bit Windows Server 2008 Datacenter can handle a whopping 2TB
  - The maximum 32-bit limit of 128GB, supported by Windows Server 2003 Datacenter Edition
  - For improved performance, Windows Server 2008 reserves more for system address space by lowering its maximum 32-bit physical memory support to 64GB
  - As of the release of Windows Server 2008, the largest system available anywhere was 2TB and so Windows caps its use of physical memory there.
  - While 4GB is the licensed limit for 32-bit client SKUs, the effective limit is actually lower and dependent on the system's chipset and connected devices
  - The reason is that the physical address map includes not only RAM, but device memory as well
User driven Internet Radio on 2009-10-24