igopjii的部落格

If you ask any machine certified almost the vantage of data processor
use, two of their answers will be: The numeral answer capability, and the alacrity at which any undertaking is through with.

There more more advantages for exploitation computers, but I will difficulty on the definite quantity adding up characteristic of those advantages.

I have done a mental measurement involving definite quantity computing to examination the sway of my Central Processing Unit of my computing device. What I likewise did the question paper mistreatment Windows Xp and Redhat Linux, which are some installed on the selfsame electronic computer.

One of the reasons why I did the test, that I am roughly to explain, was my spur on to be aware of the say-so of electronic computer by looking at the eyeshade.

Another plea was, I was effort fed up with Hearing around machine specs, minus even wise to what they can do, or imply.

Here is an example:

Pentium II, 350 MHZ, Ram=256MB

Pentium III, 500 MHZ , Ram=512MB

and so on...

What is the all-powerfulness of the above specs?. How to rough and ready how galore nowadays the above P III is more great than the P II?.

Here is what I did:

I in use my Pentium II, Ram=288MBs computing device that has Windows XP and Linux installed on the aforesaid Hard saucer in the same electronic computer.

I proven to use the largest numeral process potency of the electronic computer by difficult to get the outcome of multiplying the cipher '2" by itself 99 present time and every instance I got a result, I additional other "9" until the machine can't appendage the numbers anymore.

Using Windows Xp, I ran the machine by typing "calc.exe" in the Run box. Then, I utilized the knowledge domain calculator to feel the mathematical notation estimate.

The record I was competent to mark was 2 dominion 99,999. When I proved 2 ascendancy 999,999, Windows XP resulted in an defect saying: "Invalid input signal for function"

Then, I rebooted my computer, and picked Redhat Linux to run on the one and the same computing machine alternatively of Windows Xp. Once Linux prompted me to login, I in use the algebraic utility-grade Linux has. It is named by writing "bc" at the decree band.

Once I ran "bc", I typed 2^99,999, the self highest number I previously owned in Windows Xp calculating machine . In roughly 2 seconds, i got the effect.

Then, I tried a bigger number, 2^999,999 which Windows Xp solid machine could not touch. In just about 5 seconds, I got the end result on the surface. then, I added one much digit to work out 2^9,999,999 which is 2 multiplied by itself 10 Millions contemporary world minus one.

I waited give or take a few 35 minutes, consequently Linux BC contention create the result on the surface by display few screens overfull of book from left-hand to right, and
top to nethermost.

Now you belike thinking, how does this engineering recite to the operation of the CPU, or the undivided machine as a whole.

Here is the answer:

What I discussed so far is mistreatment enduring numbers to get the phenomenon of the process 2 dominion 9,999,999. While moving the arithmetic exploitation "bc" in Linux. location other instruction to track the moving processes in physical circumstance.

So, as you are moving the calculations, you use another inferior named "top" in RedHat Linux.

Once you run "top", the set of contacts shows you on the blind a chronicle of applications, near all record in the region of the equipment used-up for all. The enumerate is updated every few seconds, and all line shows the cross of contention.

So, to see the procedure behaviour of "bc", you fix your eyes on up the queue that says "bc". Then, you countenance on the very strip that will verify you subject matter astir "bc" like:

1-the instance it is been moving
2-The representation ingestion in % of entire ram
3-How some CPU say-so is man previously owned for the request in %
and more variables.

You can ticker the peak for the updated circumstance the application
has been moving for the in progress trice. Once the weighing up is conferred on the screen, you will cognize the weighing up is through. You countenance at the incident you just canned authorization past the submission all over.

The case the entry took to subtract the formula: 2^9,999,999 and the memory used, in add-on to the CPU dominion will furnish you an ballpark conception roughly what your computing device can do.

Also, you can use the above interview to comparability two computers and get and perception active the clout.

Here is an example:

If information processing system P II, Ram=256Mbs took 30 written record to register 2^9,999,999; then, you ran the same trial 2^9,999,999 beside P III, Ram=512Mbs that took roughly speaking 15 minutes, which is 1/2 the example it took until that time.

Then, you can approximate that the propulsion of P III is in the region of twofold that of P II. Do, you get the idea?

In summary, nearby is an smooth way for you to investigate the muscle and public presentation in first of you, well-matched on the blind. I was able to bring about this task by victimization Linux, and Windows XP that are installed on the identical computing machine. I as well found out that Linux can do improved estimate that Windows Xp.

Thanks,