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Operating Systems Solaris Top and Prstat display different results for memory Post 302101194 by Perderabo on Thursday 28th of December 2006 11:59:32 PM
Old 12-29-2006
Again, this means that 100% of the objects in virtual memory are also in physical memory. This does not mean that you have used 100% of physical memory. It means you had ALL of the physical memory that you are trying to use! Yes, you might some empty physical memory left over! prstat does not report anything about unused physical memory! You cannot use prstat to determine unused physical memory. prstat only sees physical memory in use. It cannot see unused physical memory.

Let's take an example... imagine a computer with 1024 Gigabytes of physical memory. You want to run one program that needs 1 gigabyte of memory. prstat sees that you are trying to use one gigabyte. prstat also sees that you managed to find one gigabyte to use. So it says that 100 % of virtual memory is in physical memory. What about the the other 1023 GB? prstat does not know about that. It is not claiming that the other 1023 GB is in use.
 

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install-solaris(1M)													       install-solaris(1M)

NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)
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