Rabu, 27 Februari 2013

virtual memory

Memperbesar Virtual Memory Pada Windows 7

May 18, 2011 by Under Tips & Trik - 228 Comments  
Beberapa waktu yang lalau ada yang beratanya melalui YM bagaimana cara memberbesar pada Windows 7? Sebenarnya pada artikel terdahulu kami pernah membahas bagaimana membuat virtual memory pada Windows XP, tetapi karena pengoprasiannya sedikit berbeda, tidaka ada salahnya kami akan membuatkan panduannya di sini.
Memperbesar Virtual Memory Pada Windows 7
Berikut ini adalah langkah demi langkah cara memperbesar virtual memory pada Windows 7:
  • Pertama, buka Windows Explorer.
  • Setelah jendela explorer terbuka, klik tombol System Properties yang terletak di sebelah tombol Organize pada bagian kiri atas. (Dua langkah pertama ini bisa digantikan dengan menekan tombon Windows + Pause Break pada keyboard).
    Memperbesar Virtual Memory Pada Windows 7
  • Selanjutnya, klik tombol Advanced system settings.
    Advanced System Settings
  • Pada bagian tab Advanced, cari bagian performance dan klik tombol Settings.
  • Klik tab Advanced sekali lagi dan pada bagian Virtual Memory klik tombol Change.
  • Hilangkan tanda (Check Box) pada bagian Automatically manage paging file size for all drivers.
  • Pada bagian Custom size masukkan kapasitas yang dipakai untuk Virtual Memory. Kapasitas memory yang normal digunakan adalah Initial size berkapasitas 2 kali memory internal dan 4 kali lipat dari internal memory pada bagian maxumim size. Sebagai contoh, jika RAM pada komputer/notebook anda berkapasitas 1GB maka maka sebaiknya anda setting 2GB pada Initial size dan 4 kali lipat pada bagian Maximum size.
    Cara memperbesar kapasitas virtual memory pada Windows 7
  • Setelah anda mengisi besarnya memory virtual, klik tombol Set dan lanjutkan dengan klik tombol OK. System kadang meminta anda untuk merestart komputer dan coba restart komputer anda.
Perlu diketahui, jika memory internal anda memang terlalu kecil, jauh dari kapasitas normal jangan berharap banyak kalau trik ini bisa membantu anda mempercepat kinerja komputer. Trik ini bekerja apabila komputer anda masih berjalan normal dan membutuhkan sedikti tweaking. Jika menginginkan komputer/notebook anda bekerja lebih cepat lagi, membeli internal memory adalah pilihan terbaik.
Selamat mencoba dan perkaya wawasan anda tentang dunia IT dengan membaca artikel di FastNCheap Blog.


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virtual bok

VirtualBox binaries

By downloading, you agree to the terms and conditions of the respective license.
See the changelog for what has changed.
You might want to compare the
to verify the integrity of downloaded packages.
The SHA256 checksums should be favored as the MD5 algorithm must be treated as insecure!
Note: After upgrading VirtualBox it is recommended to upgrade the guest additions as well.

User Manual

The VirtualBox User Manual is included in the VirtualBox binaries above. If, however, you would like to take a look at it without having to install the whole thing, you also access it here:
You may also like to take a look at our frequently asked questions list.

VirtualBox older builds

The binaries in this section for VirtualBox before version 4.0 are all released under the VirtualBox Personal Use and Evaluation License (PUEL). As of VirtualBox 4.0, the Extension Pack is released under the VirtualBox Personal Use and Evaluation License and the other packages are released under the terms of the GPL version 2. By downloading, you agree to the terms and conditions of the respective license.

VirtualBox Sources

The VirtualBox sources are available free of charge under the terms and conditions of the GNU General Public License, Version 2. By downloading from the below links, you agree to these terms and conditions.
This is the current development code, which is not necessarily stable.
  • Checking out from our Subversion server. 
    svn co http://www.virtualbox.org/svn/vbox/trunk vbox
    This is the current development code, which is not necessarily stable.

    Note: The repository was recently moved. If svn update aborts with an error message regarding a moved repository, then do 
    svn switch --relocate \
   http://virtualbox.org/svn/vbox/trunk \
   http://www.virtualbox.org/svn/vbox/trunk
After getting the sources in one of the ways listed above, you should have a look at the build instructions.
Please also take a look at our licensing FAQ, in particular regarding the use of the name VirtualBox.

Pre-built VirtualBox vm's

There are some pre-built vm's designed for developers and the curious over on the  Oracle Tech Network site

VirtualBox

From Wikipedia, the free encyclopedia
Jump to: navigation, search
"Virtual box" redirects here. For virtual computers in general, see virtual machine.
Oracle VM VirtualBox
VirtualBox
VirtualBox screenshot.png
Screenshot of VirtualBox v4.1.8 running a copy of Kubuntu 11.04 on Windows 7. The window to the left is VirtualBox virtual machine manager and the one to the right is the desktop of Kubuntu
Original author(s)Innotek
Developer(s)Oracle Corporation
Initial releaseJanuary 15, 2007; 6 years ago (2007-01-15)
Stable release4.2.6 [edit]  (December 19, 2012; 2 months ago (2012-12-19)) [±]
Preview release4.2 RC 3  (August 29, 2012; 5 months ago (2012-08-29))0.3.20 [±]
Operating systemMicrosoft Windows, Mac OS X, Linux and Solaris[1]
Size40 – 90 MB depending on platform[2]
TypeVirtual machine
LicenseBase Package: GNU General Public License version 2 (Optionally CDDL for most files of the source distribution), "Extension Pack": PUEL
Websitewww.virtualbox.org
Oracle VM VirtualBox (formerly Sun VirtualBox, Sun xVM VirtualBox and innotek VirtualBox) is an x86 virtualization software package, created by software company Innotek GmbH, purchased in 2008 by Sun Microsystems, and now developed by Oracle Corporation as part of its family of virtualization products. Oracle VM VirtualBox is installed on an existing host operating system as an application; this host application allows additional guest operating systems, each known as a Guest OS, to be loaded and run, each with its own virtual environment.
Supported host operating systems include Linux, Mac OS X, Windows XP, Windows Vista, Windows 7, Windows 8, Solaris, and OpenSolaris; there is also a port to FreeBSD.[3] Supported guest operating systems include versions and derivations of Windows, Linux, BSD, OS/2, Solaris and others.[4] Since release 3.2.0, VirtualBox also allows limited virtualization of Mac OS X guests on Apple hardware, though OSX86 can also be installed using VirtualBox [5][6]
Since version 4.1, Windows guests on supported hardware can take advantage of the recently implemented WDDM driver included in the guest additions; this allows Windows Aero to be enabled along with Direct3D support.

Contents

 [hide] 

[edit] History

Logo of VirtualBox OSE, 2007
Innotek initially offered the application under a proprietary software license, making one version of the product available at no cost for personal or evaluation use, subject to the VirtualBox Personal Use and Evaluation License (PUEL).[7] In January 2007, VirtualBox Open Source Edition (OSE) was released as free software, subject to the requirements of the GNU General Public License (GPL), version 2.[8]
The original developer, innotek, also contributed to the development of OS/2 and Linux support in virtualization[9] and OS/2 ports[10] of products from Connectix which were later acquired by Microsoft. Specifically, innotek developed the “additions” code in both Microsoft Virtual PC and Microsoft Virtual Server, which enables various host-guest OS interactions like shared clipboards or dynamic viewport resizing.
Sun Microsystems acquired innotek in February 2008.[11][12][13]
Oracle Corporation acquired Sun in January 2010 and re-branded the product as "Oracle VM VirtualBox".[14][15][16]

[edit] Version summary

Versions of VirtualBox include:[17]
  • version 1.3.2, released 2007, January (first public release, before that it was all internal)
  • version 1.5.0, released 2007, September 4
  • version 2.0.0, released 2008, September 4
  • version 3.0.0, released 2009, June 30
  • version 4.0.0, released 2010, December 22
  • version 4.1.0, released 2011, July 19
  • version 4.2.0, released 2012, September 13

[edit] Licensing

With version 4 of Virtualbox, released in Dec. 2010, the core package is free software released under GNU General Public License version 2 (GPLv2). This is the fully featured package, excluding some proprietary components not available under GPLv2. These components provide support for USB 2.0 devices, RDP and PXE boot for Intel cards and are released as a separate "VirtualBox Oracle VM VirtualBox extension pack" under a proprietary Personal Use and Evaluation License (PUEL), which permits use of the software for personal use, educational use, or evaluation, free of charge.[18]
Prior to version 4, there were two different packages of the VirtualBox software. The full package was offered free under the PUEL, with licenses for other commercial deployment purchasable from Oracle. A second package called the VirtualBox Open Source Edition (OSE) was released under GPLv2. This removed the same proprietary components not available under GPLv2.[19][20]
Although VirtualBox has experimental support for Mac OS X guests, the end user license agreement of Mac OS X does not permit the operating system to run on non-Apple hardware, enforced within the operating system by calls to the Apple System Management Controller (SMC) in all Apple machines, which verifies the authenticity of the hardware.[21]

[edit] Emulated environment

Users of VirtualBox can load multiple guest OSs under a single host operating-system (host OS). Each guest can be started, paused and stopped independently within its own virtual machine (VM). The user can independently configure each VM and run it under a choice of software-based virtualization or hardware assisted virtualization if the underlying host hardware supports this. The host OS and guest OSs and applications can communicate with each other through a number of mechanisms including a common clipboard and a virtualized network facility (provided). Guest VMs can also directly communicate with each other if configured to do so.[citation needed]

[edit] Software-based virtualization

In the absence of hardware-assisted virtualization, VirtualBox adopts a standard software-based virtualization approach. This mode supports 32-bit guest OSs which run in rings 0 and 3 of the Intel ring architecture.
  • The system reconfigures the guest OS code, which would normally run in ring 0, to execute in ring 1 on the host hardware. Because this code contains many privileged instructions which cannot run natively in ring 1, VirtualBox employs a Code Scanning and Analysis Manager (CSAM) to scan the ring 0 code recursively before its first execution to identify problematic instructions and then calls the Patch Manager (PATM) to perform in-situ patching. This replaces the instruction with a jump to a VM-safe equivalent compiled code fragment in hypervisor memory.
  • The guest user-mode code, running in ring 3, generally runs directly on the host hardware in ring 3.
In both cases, VirtualBox uses CSAM and PATM to inspect and patch the offending instructions whenever a fault occurs. VirtualBox also contains a dynamic recompiler, based on QEMU to recompile any real mode or protected mode code entirely (e.g. BIOS code, a DOS guest, or any operating system startup).[22]
Using these techniques, VirtualBox can achieve a performance comparable to that of VMware.[23][24]

[edit] Hardware-assisted virtualization

VirtualBox supports both Intel's VT-x and AMD's AMD-V hardware-virtualization. Making use of these facilities, VirtualBox can run each guest VM in its own separate address-space; the guest OS ring 0 code runs on the host at ring 0 in VMX non-root mode rather than in ring 1.
VirtualBox supports some guests (including 64-bit guests, SMP guests and certain proprietary OSs) only on hosts with hardware-assisted virtualization.

[edit] Device virtualization

The system emulates hard disks in one of three disk image formats:
  1. a VirtualBox-specific container format, called "Virtual Disk Image" (VDI), storing files (with a .vdi suffix) on the host operating system
  2. VMware Virtual Machine Disk Format (VMDK)
  3. Microsoft Virtual PC VHD format
A VirtualBox virtual machine can, therefore, use disks previously created in VMware or Microsoft Virtual PC, as well as its own native format. VirtualBox can also connect to iSCSI targets and to raw partitions on the host, using either as virtual hard disks. VirtualBox emulates IDE (PIIX4 and ICH6 controllers), SCSI, SATA (ICH8M controller) and SAS controllers to which hard drives can be attached.
Both ISO images and host-connected physical devices can be mounted as CD/DVD drives. For example, the DVD image of a Linux distribution can be downloaded and used directly by VirtualBox.
By default VirtualBox provides graphics support through a custom virtual graphics-card that is VESA compatible. The Guest Additions for Windows, Linux, Solaris, OpenSolaris, or OS/2 guests include a special video-driver that increases video performance and includes additional features, such as automatically adjusting the guest resolution when resizing the VM window[25] or desktop composition via virtualized WDDM drivers .
For an Ethernet network adapter, VirtualBox virtualizes these Network Interface Cards:[26]
  • AMD PCnet PCI II (Am79C970A)
  • AMD PCnet-Fast III (Am79C973)
  • Intel Pro/1000 MT Desktop (82540EM)
  • Intel Pro/1000 MT Server (82545EM)
  • Intel Pro/1000 T Server (82543GC)
The emulated network cards allow most guest OSs to run without the need to find and install drivers for networking hardware as they are shipped as part of the guest OS. A special paravirtualized network adapter is also available, which improves network performance by eliminating the need to match a specific hardware interface, but requires special driver support in the guest. (Many distributions of Linux ship with this driver included.) By default, VirtualBox uses NAT through which Internet software for end-users such as Firefox or ssh can operate. Bridged networking via a host network adapter or virtual networks between guests can also be configured. Up to 36 network adapters can be attached simultaneously, but only four are configurable through the graphical interface.
For a sound card, VirtualBox virtualizes Intel HD Audio, Intel ICH AC'97 device and SoundBlaster 16 cards.[27]
A USB 1.1 controller is emulated so that any USB devices attached to the host can be seen in the guest. The closed-source extension pack adds a USB 2.0 controller and, if VirtualBox acts as an RDP server, it can also use USB devices on the remote RDP client as if they were connected to the host, although only if the client supports this VirtualBox-specific extension (Oracle provides clients for Solaris, Linux and Sun Ray thin clients that can do this, and have promised support for other platforms in future versions).[28]

[edit] Feature set

This section is in a list format that may be better presented using prose. You can help by converting this section to prose, if appropriate. Editing help is available. (February 2012)
This section may be too technical for most readers to understand. Please help improve this section to make it understandable to non-experts, without removing the technical details. The talk page may contain suggestions. (September 2012)
  • 64-bit guests (hardware virtualization only)
  • NCQ support for SATA, SCSI and SAS raw disks and partitions
  • Snapshots
  • Seamless mode
  • Clipboard
  • Shared folders
  • Special drivers and utilities to facilitate switching between systems
  • Command line interaction (in addition to the GUI)
  • Public API (Java, Python, SOAP, XPCOM) to control VM configuration and execution[29]
  • Nested paging for AMD-V and Intel VT (only for processors supporting SLAT and with SLAT enabled)
  • Raw hard disk access – allows physical hard disk partitions on the host system to appear in the guest system
  • VMware Virtual Machine Disk (VMDK) format support – allows VirtualBox to exchange disk images with VMware
  • Microsoft VHD support
  • 3D virtualization (Limited support for OpenGL was added to v2.1, more support was added to v2.2, OpenGL 2.0 and Direct3D support was added in VirtualBox 3.0)
  • SMP support (up to 32 virtual CPUs per virtual machine), since version 3.0
  • Teleportation (aka Live Migration), since version 3.1 (Broken since version 4.1)[30]
  • 2D video acceleration, since version 3.1
Since version 3.2
  • Mac OS X Server guest support – experimental
  • Memory ballooning
  • RAM deduplication (Page Fusion) for Windows guests on 64-bit hosts
  • CPU hot-plugging for Linux (hot-add and hot-remove) and certain Windows guests (hot-add only)
  • Deleting snapshots while the VM is running
  • Multi-monitor guest setups in the GUI, for Windows guests
  • LSI Logic SAS controller emulation
  • Remote Desktop Protocol (RDP) video acceleration
  • Run and control guest applications from the host – for automated software deployments
Since version 4.0
  • The PUEL/OSE separation was given up in favor of an open source base product and a closed source extension pack that can be installed on top of the base product. As part of this change, additional components of VirtualBox were made open source (installers, documentation, device drivers)
  • Intel HD audio emulation
  • Intel ICH9 chipset emulation
  • A new VM storage scheme where all VM data is stored in one single folder to improve VM portability
  • Several UI enhancements including a new look with VM preview and scale mode
  • On 32-bit hosts, VMs can each use more than 1.5 GB of RAM
  • In addition to OVF, the single file OVA format is supported
  • CPU use and I/O bandwidth can be limited per VM
  • Support for Apple DMG images (DVD)
  • Multi-monitor guest setups for Linux/Solaris guests (previously Windows only)
  • Resizing of VDI and VHD images
Since version 4.1
  • Windows Aero support (experimental)
  • Guest virtual machine cloning

[edit] The extension pack

Some features require the installation of the closed-source "VirtualBox Extension Pack":[31]
  • Support for a virtual USB 2.0 controller (EHCI)
  • VirtualBox RDP: support for proprietary remote connection protocol developed by Microsoft and Citrix.
  • PXE boot for Intel cards

[edit] Virtual Disk Image

VirtualBox uses its own format for storage containers – Virtual Disk Image (VDI). VirtualBox also supports other well-known storage formats[32] such as VMDK (used in particular by VMware) as well as the VHD format used by Microsoft.
VirtualBox's command-line utility VBoxManage includes options for cloning disks and importing and exporting file systems, however, it does not include a tool for increasing the size of the filesystem within a VDI container: this can be achieved in many ways with third-party tools (e.g. CloneVDI provides a GUI for cloning and increasing the size [33]) or in the guest OS itself.[34]
VirtualBox has supported Open Virtualization Format (OVF) since version 2.2.0 (April 2009).[35]

[edit] See also

Portal iconFree software portal

[edit] References

  1. ^ https://www.virtualbox.org/wiki/Downloads
  2. ^ VirtualBox downloads
  3. ^ "VirtualBox – FreeBSD Wiki". Wiki.freebsd.org. 2009-06-16. http://wiki.freebsd.org/VirtualBox. Retrieved 2009-07-04.
  4. ^ "Guest_OSes". VirtualBox. 2009-06-12. http://www.virtualbox.org/wiki/Guest_OSes. Retrieved 2009-07-04.
  5. ^ [1]
  6. ^ VirtualBox 3.2 Beta Virtualizes Mac OS X (On Macs), May 4, 2010, By Kevin Purdy, Lifehacker
  7. ^ "VirtualBox_PUEL – VirtualBox". VirtualBox. 2008-09-10. http://www.virtualbox.org/wiki/VirtualBox_PUEL. Retrieved 2009-07-04.
  8. ^ "GPL". VirtualBox. http://www.virtualbox.org/wiki/GPL. Retrieved 2009-07-04.
  9. ^ Ronny Ong   View profile    More options. "Additions Version History – microsoft.public.virtualpc | Google Groups". Groups.google.com. http://groups.google.com/group/microsoft.public.virtualpc/msg/1dbfbc16da8ac9af. Retrieved 2009-07-04.
  10. ^ "Connectix Announces First Virtual Computing Solution for OS/2 Users; Virtual PC Lets Enterprises Run OS/2 and Windows Concurrently on a Single PC | Business Wire | Find Articles at BNET". Findarticles.com. 2002-07-01. http://findarticles.com/p/articles/mi_m0EIN/is_2002_July_1/ai_88090458. Retrieved 2009-07-04.
  11. ^ "Sun Microsystems Announces Agreement to Acquire innotek, Expanding Sun xVM Reach to the Developer Desktop" (Press release). Sun Microsystems. February 12, 2008. http://www.sun.com/aboutsun/pr/2008-02/sunflash.20080212.1.xml. Retrieved 2008-02-12.
  12. ^ "E-Commerce News: Business: Sun Gets Desktop Virtualization Chops With Innotek Buy". Ecommercetimes.com. http://www.ecommercetimes.com/story/61661.html. Retrieved 2009-07-04.
  13. ^ "Sun Welcomes Innotek". Sun Microsystems, Inc.. http://www.sun.com/software/innotek/. Retrieved 2008-02-26. "On February 20 Sun completed the acquisition of innotek"
  14. ^ "Oracle and Virtualization". Oracle Corporation. http://www.oracle.com/us/technologies/virtualization/index.html. Retrieved 2010-01-30.
  15. ^ "VirtualBox Joins Oracle's Enterprise Virtualization Portfolio". systemnews. February 25, 2010. http://sun.systemnews.com/articles/144/4/Virtualization/22866. Retrieved March 6, 2010.[dead link]
  16. ^ Hawley, Adam (February 26, 2010). "The Oracle VM Product Line Welcomes Sun!". Oracle Virtualization Blog. Oracle Corporation. Archived from the original on 2010-04-07. http://web.archive.org/web/20100407074836/http://blogs.oracle.com/virtualization/2010/02/the_oracle_vm_product_line_wel.html. Retrieved March 6, 2010.
  17. ^ "Old Versions of VirtualBox". http://www.oldapps.com/virtualbox.php. Retrieved 2012-10-18.
  18. ^ "VirtualBox_PUEL". VirtualBox. 2010-04-19. http://www.virtualbox.org/wiki/VirtualBox_PUEL. Retrieved 2011-04-20.
  19. ^ "Licensing FAQ". VirtualBox. http://www.virtualbox.org/wiki/Licensing_FAQ. Retrieved 2008-12-16.
  20. ^ "Editions". VirtualBox. http://www.virtualbox.org/wiki/Editions. Retrieved 2009-07-04.
  21. ^ Interview with Andy Hall, Product Manager for Oracle VM VirtualBox
  22. ^ "VirtualBox Manual, Section 10.4 Details about software virtualization". VirtualBox. http://www.virtualbox.org/manual/ch10.html#idp13728752. Retrieved 2011-04-25.
  23. ^ Dr. Oliver Diedrich (2007-01-15). "heise open – 15.01.07 – VirtualBox". Heise.de. http://www.heise.de/open/artikel/83678. Retrieved 2009-07-04.
  24. ^ Jason Perlow (2010-05-21). "Virtualization Smackdown 2: Oracle VM VirtualBox 3.2 vs. VMware Workstation 7.1". ZDNET. http://www.zdnet.com/blog/perlow/virtualization-smackdown-2-oracle-vm-virtualbox-32-vs-vmware-workstation-71/13020. Retrieved 2010-05-24.
  25. ^ "Chapter 4. Guest Additions". VirtualBox. http://www.virtualbox.org/manual/ch04.html#id448025. Retrieved 2011-01-17.
  26. ^ "Chapter 6. Virtual networking". VirtualBox. http://www.virtualbox.org/manual/ch06.html#nichardware. Retrieved 2011-01-17.
  27. ^ "Chapter 3. Configuring Virtual Machines". VirtualBox. http://www.virtualbox.org/manual/ch03.html#settings-audio. Retrieved 2011-01-17.
  28. ^ "VirtualBox 4.1.4 Manual – Chapter 7 Remote Virtual Machines". Oracle. 2011-10-03. http://www.virtualbox.org/manual/ch07.html#usb-over-rdp. Retrieved 2011-11-19.
  29. ^ "Python API to the VirtualBox VM". Sun Microsystems. 2008-09-05. Archived from the original on 2008-09-10. http://web.archive.org/web/20080910134357/http://blogs.sun.com/nike/entry/python_api_to_the_virtualbox. Retrieved 2008-09-06.
  30. ^ "VirtualBox Bug #9455". https://www.virtualbox.org/ticket/9455.
  31. ^ Downloads – Oracle VM VirtualBox
  32. ^ Guide/Virtual storage "Virtual storage". VirtualBox. 2009-10-30. http://web.archive.org/web/20100204064658/http://www.virtualbox.org/wiki/User Guide/Virtual storage. Retrieved 2009-10-30.
  33. ^ https://forums.virtualbox.org/viewtopic.php?f=6&t=22422
  34. ^ "Howto increase hard disk size after installing a guest OS". End user forums for VirtualBox. 2009-10-30. http://forums.virtualbox.org/viewtopic.php?f=1&t=364&start=30. Retrieved 2009-10-30.
  35. ^ "VirtualBox changelog". http://www.virtualbox.org/wiki/Changelog-2.2. Retrieved 2010-02-18.

[edit] External links

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