Terms of Use. Show Full Site. All rights reserved. Log in Don't have an account? The Global Performance benchmark includes ratings for processor, cache, memory, video, and hard disk performance. To keep things consistent and to sidestep issues related to Flash drive performance, I used the same Corsair Survivor Flash drive for all ReadyBoost tests.
I simply resized its cache for each reported test where ReadyBoost was active. As the following results illustrate, using ReadyBoost does provide some benefits to Vista users.
In the following table, numbers that appear to the right of the performance metrics under the column heads that read None, 1 GB, 2 GB, and so forth, come from PC Wizard's Global Benchmark ratings. These numbers don't correspond to any specific units of measure, but they do provide relative values when compared in the right-left dimension. While the PC Wizard benchmark ratings increase for many values when using ReadyBoost, the biggest boost comes from the first gigabyte.
There's actually a fall-off for the next 2 gigs. Then finally, there's an increase for the fourth and final gigabyte of ReadyBoost cache. Also, processor and memory performance both decline somewhat when using ReadyBoost.
But video and hard-disk performance both increase. The wins from the latter outdid the losses from the former. Also, I noticed a modest improvement in overall system performance whenever I turned ReadyBoost on, in doing regular work as well as in these benchmarks. It identifies most Flash drives that meet ReadyBoost criteria. This interview with Matt Ayers , conducted by Microsoft tools strategist Tom Archer, is worth a quick read. If your drive is not supported, you will see a warning message.
However, if you are willing to buy a new flash drive solely for the purpose of ReadyBoost, here are the features you should look out for,. Certainly the first question that arises here is what if the portable flash drive lands on wrong hands? Well surely there is a chance of data theft. Fortunately, you do not have to worry about this either as Microsoft uses AES data encryption to encrypt all data written to ReadyBoost cache, which negates the chance of data misuse considerably. Now that you are reading this part, I assume you are ready to try it on your own.
If your system is only using a small percentage of your cache is a huge waste. L2 cache is a small amount of high-speed memory that allows for high-speed access to the system's most commonly accessed data. With Windows Vista however, SuperFetch tries its best to use as much RAM as it can, because if you have it you might as well make use of it.
As you may notice in the screenshot above, it only shows about 2. This is because the data in the cache is considered very low priority and any process that comes in and needs to use RAM will flush this data out transparently to the user or process.
So, the memory is being used, but as far as the processes are concerned, it is empty. So what this boils down to is that even if you see that you have very little physical memory free, it is most likely nothing to worry about, it is just SuperFetch working.
That having been said, if you have multiple programs that are using lots of RAM, this could still cause system resource depletion, however you would be able to see that in the Memory Usage graph in Task Manager. SuperFetch also automatically recognizes and uses any capacity afforded by storage devices enhanced for ReadyBoost and ReadyDrive for high-performance disk caching.
Now that we've introduced SuperFetch, let's move on to ReadyBoost. Whenever we talk about ways to improve a computer's performance, one of the first things we think of is adding memory RAM to a system. The more memory a system has, the less often it has to access the hard drive to run applications. However, adding RAM to a system is not always a viable option - either because the machine has no capacity for additional expansion, or because RAM itself is not cheap.
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