mflops?


  1. lilbballer27

    lilbballer27 Well-Known Member

    Ive seen people who are rooted talking about how fast their mflop is? Can someone please explain this to me lol. Sorry if its a noob question.

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  2. Demache

    Demache Well-Known Member

    I believe its to compare how fast the phone is in raw computing power.

    I think a stock Eris is around 3 MFLOPs. Mine is overclocked at about 708 mhz, and is at about 4.5 MFLOPs. Its noticeably faster in some parts of the phone.
  3. darkside

    darkside Well-Known Member

    You can download a program called linpack from the market, with that you can find out how many mflops your phone has.
  4. Frisco

    Frisco =Luceat Lux Vestra= VIP Member

    Millions of floating point operations per second (mflops) is one of the measures of CPU functionality.

    Higher is better, as some here are pointing out.

    Rooters like to brag about getting 5 mflops after overclocking. Me included. :D
  5. andrizoid

    andrizoid Well-Known Member

    yea but MFLOPS doesnt necessarily directly correlate to speed.
    On a rom i was testing, with JIT i was pulling over 5.3 MFLOPS, but it was SOOOO laggy that i could barely open the Linpack app. as soon as i turned off JIT, MFLOPS dropped to around ~4 but NO lag.


    MFLOPS is a good basic benchmark, but its not something that you should rely on whole-heartedly
  6. Batbriel

    Batbriel Well-Known Member


    Any tips on how to get 5 mflops? :D:p
  7. cornbreadfarts

    cornbreadfarts Well-Known Member

    run White Widow with JIT and OC
    WilCIWS likes this.
  8. Frisco

    Frisco =Luceat Lux Vestra= VIP Member

    I confess to it being mostly 4.6 or 4.8; have not hit the 5 threshold yet, consistently.

    Rooted but with no OC saw it around 2.8 running just about any ROM, which made me want to know the technical reasons that some ROMs seem more responsive, quicker to load menus and apps, than others. xtrROM 2.1.1 is the fastest I've tried, Evil Eris 3 the slowest, talking about user experience/user perception, not any measurement of speed.

    Mentioned above, mflops are not the only consideration.
  9. lilbballer27

    lilbballer27 Well-Known Member

    Ok everyone thanks! I am going to download linpack now from the market and will post back what my mflop number is!
  10. Batbriel

    Batbriel Well-Known Member

    Ok, cuz right now I'm runing XTR Rom 3.0 and its super fast but Im at 2.20 without OC :)
  11. Frisco

    Frisco =Luceat Lux Vestra= VIP Member

    That is an example of how data can sometimes be over blown.

    Low mflops, but still a fast device as you report.

    The 2.1 OS and CPU the Eris runs on have their limitations, no matter if rooted and overclocked or not.

    I do perceive a difference, as I overclock, but how big a difference can it ever be in 2.1 with that CPU? 528 over 710 is just a squishy 20% or so difference in speed; that adds up to .8 seconds to load something hypothetical as opposed to 1 second.

    Going higher has been shown to tax many CPUs to the point of possible damage over time or even right away; it's a bit chancy.. we need to be careful in there trying to squeeze out what little gains the hardware is capable of giving us.
  12. DDustiNN

    DDustiNN Well-Known Member

    I am running White Widow 4.5, overclocked to 710/528... just ran Linpack and it showed 2.67 (edit: 2.84 now...?) mflops or something.

    Stock is supposed to be 3??

    Honestly I haven't really noticed any difference with overclocking... I think it's a placebo effect for most :D

    Or maybe it's just not significant enough to notice without comparing... Or maybe I'm just so used to it now that I would only notice if I reverted back to stock and stuff was slower... I dunno, haha... But most of the "speed" increases that I see were just things I set in ADWLauncher... such as how fast the screens change, how fast the drawer animation comes in, etc... those are the only visible signs to me. As far as opening and running apps, I don't feel much of a difference. They may load slightly faster, I dunno... maybe it's because I am using Apps2SD? :confused:
  13. lilbballer27

    lilbballer27 Well-Known Member

    Im overclocked at 710 but my flops is only 2.8? am I overclocked wrong or why is the mflop so slow?
  14. scary alien

    scary alien not really so scary Moderator

    You didn't say what ROM you are running (unless I missed it?).

    I'm running Ivan's Eris Official 1.0 (about as stock as you can get: no JIT, no a2sd, etc.) at 710MHz an my latest Linpack scores are 2.909 and 3.021 (you'll get slightly different values each time because of what else the phone has going on in the background).

    Its not a tried and true measuring stick anyway, just one method of comparing devices and ROMs. Your mileage will vary. :D
  15. BlueDC2

    BlueDC2 Well-Known Member

    KaosFroyo v20 is my current daily. I used to get instability with jit, but the 2.2 version (different?) doesn't cause any crashes or lag for my. I oc up to 768.

    [​IMG] [​IMG]
  16. scary alien

    scary alien not really so scary Moderator

    Very nice (I am a little jealous ;))

    Really like you avatar -- by the way, "...do you think KFC is still open?" :D
  17. BlueDC2

    BlueDC2 Well-Known Member

    scary alien likes this.
  18. lilbballer27

    lilbballer27 Well-Known Member

    Im running ivans official 1.0
  19. scary alien

    scary alien not really so scary Moderator

    Well, I ran an admittedly unscientific test where I rebooted, ran Linpack four times without being overclocked (i.e., invoking setCPU) and then overclocked at 710MHz. Not much difference either way :D:

    Code (Text):
    1.  
    2. [FONT=Courier New][COLOR=blue]              o/c at[/COLOR][/FONT]
    3. [FONT=Courier New][COLOR=blue]run # no o/c  710MHz[/COLOR][/FONT]
    4. [FONT=Courier New][COLOR=blue]----- ------  ------[/COLOR][/FONT]
    5. [FONT=Courier New][COLOR=blue]      2.726    2.863[/COLOR][/FONT]
    6. [FONT=Courier New][COLOR=blue] 2    2.805    2.879[/COLOR][/FONT]
    7. [FONT=Courier New][COLOR=blue] 3    2.984    2.909[/COLOR][/FONT]
    8. [FONT=Courier New][COLOR=blue] 4    2.804    2.765[/COLOR][/FONT]
    9. [FONT=Courier New][COLOR=blue]avg   2.830    2.854[/COLOR][/FONT]
    I wouldn't worry too much over Linpack...its really about how the phone performs and behaves for you. :)
  20. PimpShit420

    PimpShit420 Active Member

    How do you take a screen shot of my phone? I got constant 5.6's on Kaos Froyo
  21. scary alien

    scary alien not really so scary Moderator

    You can do this via adb, or download drocap2 from the Market (free). Works great.
  22. Ciggy

    Ciggy Well-Known Member

    ShootMe from the market works as well. Scary alien. O/C at 710 is pretty low and almost stock speeds. Try 748 and see what mflops you get.
  23. scary alien

    scary alien not really so scary Moderator

    Good to know about ShootMe (thanks!).

    Re. O/C any higher...wish I could (sort-of :D)...Ivan's 1.0 is kernel-locked at 710MHz :(

    Not a real biggie for me...I'm happy right now with this safe speed. Hopefully, 1.1 will let me take it to "11" :eek:
  24. lilbballer27

    lilbballer27 Well-Known Member

    lol im waiting to run kaos froyo when the bugs are all worked out. Im sure my mflops will be alot higher then.
  25. ttran97

    ttran97 Well-Known Member

    If you install the updated zanfur kernel, you'll be able to go above 710. I did that for my dad's Eris and it's working fine. Uses the stock lockscreen, too.

    Here's the patch: http://forum.xda-developers.com/showthread.php?t=679102

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