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Experiences with Dual Core

Discussion in 'Hardware' started by DeX, 14 Jul 2006.

  1. Cheap Mod Wannabe

    Cheap Mod Wannabe What's a Dremel?

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    I've just recently went Dual Core. Pentium D 805 at 3.6GHz from Athlon XP 2800+ (2.08GHz) and man is this thing awesome at multitasking.

    Today I've spent almost whole night organizing over 400 Gigs of files. Made great directories, renamed properly, photo/video organizing. Well a big thing in quite few years. So I've been running Remote Desktop 800x600, copying 10Gb folders, with quite few explorer windows, + watching old Screensaver videos on YouTube. And this whole thing is only using 80% of CPU.

    And to tell you about working with video.... I love it. I'm capturing through firewall MiniDV tapes, or encoding video, and I can do most things with my PC, where before I had to wait.

    If you're multitask a lot.... I totally reccomend Dual Core!
     
  2. LoneArchon

    LoneArchon What's a Dremel?

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    3,560,561 tries a second on a A64 3200+(Socket 754@ stock 2.2) so i don't know if the program truly uses 2 cores i don't have a dual core chip. But i do use a dual xeon workstation at work and it does make a difference
     
  3. Behemoth

    Behemoth Timelord in training

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    Good thread, think whenI can afford an XP 3800 Dual Core I get one as I;'m struggling with my 3200 Venice chip, an extra gig of ram and a x2 CPU, will make my system really usable :)
     
  4. kenco_uk

    kenco_uk I unsuccessfully then tried again

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    Number of processors detected and utilised are 2. The bios doesn't allow HT to be switched off, unfortunately. The word I used was 'letter'. TBH, I was on my lappy, ran the test and thought I'd bung the result in just as a comparison. I'll have to run it on my X2 3800.

    I had my A64 3000+ at 270FSB and tbh 'upgrading' to an X2 3800, it seems to run at a similar speed, although it's still running stock atm :)
     
  5. Stwongbad

    Stwongbad What's a Dremel?

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    Who here here has upgraded from an AMD single core to an X2 around the same speed?

    [Edit] If so what kind of results
     
  6. Highland3r

    Highland3r Minimodder

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    "Upgraded" from a 2.7ghz Opty 144 to a X2 3800 running at 2.1ghz (CPU wouldnt clock at all) General useage wise the X2 was a LOT smoother than the opty. ie, atm the PC's virus scanning and it's not noticable at all. Before the machine lagged etc.
    Things "feel" slightly slower though, assuming this is due to the lack of raw clockspeed.
    The 2.9ghz X2 on the other hand is a different beast, multi tasks really nicely very nippy little thing indeed.
     
  7. DeX

    DeX Mube Codder

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    I've upgraded the program a bit. It now should detect the number of processors whenever the program is brought into focus. IE if you change the program's affinity after starting it and then start running it, it should be able to adjust the number of threads it uses accordingly. Also I've optomised it a little so it's about 3-4 times faster now. :) Get the new version here.
     
  8. Callum

    Callum What's a Dremel?

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    10.9 million tries/s, on the link in my sig. That's quite an optimisation you've done ;)
     
  9. DeX

    DeX Mube Codder

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    Yeah, it's not really an optimisation, more of a slight cheat. Instead generating a new random 32bit number for each letter I now generate just 1 for every 6 letters and use 30 out of the 32bits generated instead of the previous 8. That means you'll notice a significant drop in the tries/s from 6 to 7 letters. But all this means that the random numbers are not so random and in fact some letters are more likely to be generated than others.
     
  10. Boswell

    Boswell Minimodder

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    14.31 million tries/second using the word "second". Nearly took 1 billion tries though to find it! Does the program find numbers aswell?

    Ed
     
  11. DeX

    DeX Mube Codder

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    Nope, just the letters A-Z
     
  12. lcdguy

    lcdguy Minimodder

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    word used: monkey
    tries/s: 12 677 136
    Match found: 459939156
    Time: 36 Seconds

    System Specs:

    See Sig
     
  13. webchimp

    webchimp What's a Dremel?

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    Interesting....

    I have two PCs

    1. Pentium D805 Dual Core @ 4Ghz, 2Gb RAM, Windows XP-Pro
    First run: 9,035,736 tries/s
    Second run: 9,126,846 tries/s

    2. Athon XP2600-M @ 2.465Ghz, 1Gb RAM, Windows 2000
    First run: 13,337,918 tries/s
    Second run: 13,397,378 tries/s

    Word used for all tests: monkey

    Very odd results, my ageing single core XP whips my dual core Pentium and beats quite a few of the dual core AMDs clocked higher than my XP. :confused:
     
  14. DeX

    DeX Mube Codder

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    That is quite odd, webchimp. Are you sure that both cores are being used on the Pentium system?

    Also isn't the XP2600-M designed for multi-processor systems? And you only have one of them?

    Even so it's quite possible that the AMD chips run this program a lot quicker than pentiums. There are somethings that AMD kicks pentium's arse at and vice versa. As I said before, it's not a brilliant benchmarking tool.
     
  15. webchimp

    webchimp What's a Dremel?

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    Hi Dex,

    Yes both cores were detected and used on the Pentium system and I could see both cores maxed out on the Asus motherboard utility doohickey while the program was running.

    The Athlon XP2600-M is a mobile processor, although I'm using it in a desktop PC with a standard ATX motherboard. The mobile athlons had unlocked multipliers and a lower standard VCore requirement than their desktop counterparts; better for overclocking.

    It would appear that this particular test favours the AMD architecture over the Pentium IV architecture by a considerable margin. However, what's really surprising is that it beats the 10.9 million tries/s of Callum's Athlon 64 X2 3800+, which I believe runs at 2400Mhz, very similar to the 2465Mhz I have my XP running at. It would appear that the 2nd core has very little benfit or is posibly a hinderance, for this particular test.
     
  16. rikbikboo

    rikbikboo What's a Dremel?

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    word used second
    match found in 890045187 tries and 75 seconds 11815596 tries/s

    2nd try word = monkey

    match found in 292315302 tries and 25 seconds 11707129 tries /s

    i have found that i can run bf2 and virus scan and make a dvd with no significant slow down using the machine specs below. standard settings no overclock.

    4400x2
    4gb pc3200ram
    2xx1800xt 512's xfire mode
    sapphirre pure xfire mobo
    2x250gb sata drives
    water cooled cpu.
     
  17. Firehed

    Firehed Why not? I own a domain to match.

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    I went from a 3000+ to a X2 3800+, worth every penny. With both clocked to around 2.4GHz, the dual core is notably snappier in everything, and lets me recode stuff MUCH faster and still have enough left over to have a usable system.

    I'm on my Mac at the moment so I can't try the monkey program, unfortunately.
     

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