Occasionally you may have observed a message which appears on your video monitor and reads “low virtual memory”. This situation generally happens after you have recently installed and activated multiple programs on your personal computer. If so perhaps you are curious as to why this message was generated and what you can do to correct and control the situation in the future.
What this basically means is that you need to take active steps in order to restore your computer back to its normal memory configuration. You have a choice in accomplishing this by one of two varied steps. The first is simply to add additional
Let us first review a quick introduction to just what virtual memory actually is. Virtual memory is simply a technique employed by computer designers to enable the computer operating system to provide the running computer application program with the mistaken idea that the program has an unlimited amount of working memory. We realize of course that this is not true at all but the idea is to make the computer program believe that it is so. The use of virtual memory is very helpful in running some of today’s memory conscious programs and this method of memory management makes the system extremely cost effective. Most of the operating systems which make use of this virtual memory technique will allow for the easy hosting and operations of very large computer application programs. Although it is considered to be common acknowledge that this technique is used to allow computers to operate large and complex programming procedures it should readily be noted that in the end there is a trade-off involved in actual performance.
What this entails is that the performance of an application using the virtual memory technique will not be the same when compared to the performance of an equal program which is one hundred percent memory resident. This is however considered a minor setback since overall the presence of the virtual memory is considered helpful for most computer operations.
Computers and their application programs need to avoid an issue known in the industry as thrashing. This avoidance would enable the system to use the memory techniques effectively to their advantage. This “thrashing” refers to a scenario where the computer focuses too much of its processing time on moving the various blocks of virtual memory thus making the machine appear to be functioning at a much slower pace then it actually should be. Generally the computer operating system takes this into consideration and makes the alternate changes appropriately.
