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Just asking for a little help, simple stuff =)

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Last response: in Work & Education
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October 28, 2009 10:39:49 PM

I am in a statistical math class and I have a project to do. So I would like to ask for a small hand from my friends here. I am doing a study and developing a hypothesis based on computer reboot times.

All computers used for my study must be newer(ish), no old sub 1000mhz systems if you would please. Newer single core or dual core (2000+ish MHZ) would be most ideal; Windows only for this hypothesis.

Simple procedure, get out yur stopwatch (or watch with a second hand) close all programs running (not task bar items) hit the start menu and press restart then start your timer.

Please post your time to a complete reboot (total minutes and seconds), to the point where you can actually start a program, not just the splash screen. If you wouldn't mind tell me your CPU and RAM amount (hard drive size/type is not important for this base line).

You should be able to tell when your computer is finished booting, HD activity slows way down, and program/The Start Menu should open easily. Try to be as exact as possible, do it twice to make sure you have an acurate time.

This is a team project but my team is slacking off and I need more than 30 numbers for a large sample size. If you see 30 responses to this then I have enough numbers for my hypothesis.

I would greatly appreciate it =)

More about : simple stuff

October 28, 2009 10:43:55 PM

Will do in a few minutes.

Ok, it takes about 35s just for the shutdown, 1m10s more to get to the login screen, 15s from login to desktop and 10s more to have Firefox running. I did it twice and got similar results more or less 1-2 seconds. So it takes me 2m-2m10 for a full reboot.

For my specs:
CPU: Intel Xeon E3110 @ 3.60GHz [Wolfdale (45 nm)]
MB: Gigabyte P35-DS3L (Rev. 2)
MON: Samsung 226BW 22in. 1680x1050
GPU: EVGA GeForce 8800 GTS 512 @ 670 MHz Core / 972 MHz RAM
RAM: OCZ Reaper 8GB (4x2GB) DDR2 Dual Channel [400 MHz (5:6) @ 4-5-4-15] OCZ2RPR800C44GK
PSU: Corair 520HX 520W
HD1: WD Raptor 36GB WD360GD
HD2: Seagate 7200.11 500GB ST3500320AS

Running Windows Vista Ultimate 64 bits (1.5GB of RAM used after startup ...)
October 28, 2009 10:47:14 PM

45 Seconds and 47 seconds.

CPU: AMD Phenom II X3 720 @ 3.0 with 4th core unlocked.
RAM: 4GB PC6400 800MHz
HDD: 1TB Western Digital Caviar Black 32MB Cache
Related resources
October 28, 2009 11:42:51 PM

I now have 13 numbers recorded from different systems, I need at least 18 more. Please remember this is not a race of any type and I would like the numbers to be as accurate as possible.

Thanks Zen and x (btw if you have access to any other PCs I will take numbers from those as well)
October 29, 2009 2:50:56 AM

hit the start menu and press restart then start your timer
to the point where you can actually start a program.

52 seconds


October 29, 2009 10:26:05 PM

Thanks Knotnut
October 29, 2009 11:12:57 PM

Got a few more numbers for the sample now I only need 8 more...
October 30, 2009 1:37:11 AM

I will get you one tonight as well. I could've gotten you 3 but 2 of my systems are down for the count and getting RMA'd parts. Ill get back on shortly...
October 30, 2009 2:00:57 AM

Thank you very much - I've managed to contact a few more friends on facebook and get a few more numbers. Now I need 4 more to fill my sample.
October 30, 2009 3:14:03 AM

My setup:

Q9550 OC @ 3.6Ghz
EVGA 780i mobo
8G ram
EVGA 275
Corsair 1000 watt psu
Seagate 500G boot drive
Samsung Dual Layer DVD drive
XP Media Center 2005 (downgraded from Vista 64)

Shut down : 14 sec
Windows Logo screen : 34 sec
Able to start new program: 1:20 sec

The first time I rebooted it took longer but I think its because I had left it running overnight and I just finished a 2 hour session of gaming and it seemed a little laggy.

I am about to load Windows 7 and this current XP install seems a little buggy so not too bad timing for a buggy install...
October 30, 2009 5:03:35 AM

thanks englandr,

I now have all I need for my sample. =)
October 30, 2009 7:05:05 AM

ir_efrem said:
(hard drive size/type is not important for this base line).

Out of curiosity, why is this the case? A Solid State Drive will wipe the floor with a platter-based HDD.
October 30, 2009 7:14:18 AM

This type of benchmark is pretty much I/O bottlenecked i would say. So HDD does matter alot.
October 30, 2009 4:19:52 PM

We have a small range of older systems. All with varying degrees of crap installed on them. With reboot times that range from ~6 mins to ~15mins.

I wanted a range of newer systems with a completely random sample. So there would be a wide range of crap installed but would be a fair sample of the average (Newer) computer system.

I will be using hypothesis testing on the mean for both a small sample size (older systems) and a large sample size (newer systems). Standard deviation will be determined (of course) and a conclusion will be drawn based on the Null/Alternative Hypothesis for each case. All done in the name of showing that newer systems would be more productive to a certain degree, than the older systems. This is not a hard core (BE ALL END ALL) direct comparison between a single old system and a faster new system. So this is a perfect type of test for what my assignment requires. Remember this is a Statistics Class, not a Computer Class.

HDD size/type does not matter because it will only give a very fast number (or two) out of a random sample, which would actually be ideal for this test, because a full spectrum of what is available (for newer computer) will show up in the sample.

Thanks..
October 31, 2009 2:56:56 AM

Well if you need some more samples I can provide mine. I have a very fast OS boot, however my POST is pathetically slow, so it does even out a little.
October 31, 2009 1:56:47 PM

Wish I would have seen this thread earlier, as I woulda thrown in some results for you as well. Never the less, if you remember to and have enough time, post up the results of your study- I'm curious to see the results. Don't worry about translating the stats., had to do plenty of that crap in school myself.

Best of luck.
October 31, 2009 10:00:46 PM

These aren't real benchmark results and by design the numbers don't say jack-crap lol

Actually the interpretation is the boring part. Yep old systems are slow as hell, new systems seem like speed demons in comparison.

The mean of the newer system restart times is ~354% faster, that's the interesting number. I wonder if real world, productivity benchmarks show a common newer computer as 3.5 times faster than an older (common for the time period) 900mhz with 512mb of ram...

If you are wondering about all the stats..

Older Systems = CPU = 900 MHZ, 512MB of RAM
-----
Mean restart times = 496.17 seconds
Standard Deviation = 141.16 seconds
Standardized Test Statistic: t= 3.4 @ 0.01 level of significance
I used a t-test of the mean for small sample sizes


Newer Computer Systems
-----
Mean restart times = 140.37 seconds
Standard Deviation = 65.82 seconds
Standardized Test Statistic: z= 14.75 @ 0.01 level of significance
Used a z-test of the mean for large sample sizes


Had to build a hypothesis on that - and it was a very simple test at that....
November 1, 2009 12:52:31 AM

time shut down : 10 seconds.
Post = 5 seconds
win splash = 7seconds
extra time to start up FIREFOX 3.5 = 15 seconds
p4 garbage,1gb crucial ballistix,old wd 80gb ide
November 1, 2009 3:18:10 AM

The assignment is completed. I appreciate the thought but there is no way I'm going to go back and change all the formulas just to add 1 more result. =P
!