Kunci utamanya sih penggunaan RAM daripada penggunaan physical storage untuk 
data quadrant di simpan.
Itu salah satu trick saja, pasti masih banyak trick lainnya.

Untuk lakukan benchmark yg fair juga menurut saya adalah ketika hadnset tsb 
baru keluar dari box nya dengan artian belum ada campur tangan kita dan 
aplikasi2 yg diinstal di handset sendiri tidak saling berbeda.
Pemilihan handset dengan mempunyai spesifikasi RAM yg lebih besar sangat 
direkomdasikan.  
  ----- Original Message ----- 
  From: Gusti muharama 
  To: [email protected] 
  Sent: Sunday, May 08, 2011 9:50 AM
  Subject: Re: [id-android] WTI : How to cheat at benchmarks (and why we should 
downplay their importance)


  Jadi naikkan io nya aja ya suhu?
  Kayak pake app2sd jenis tertentu..
  Imho
  Menurut saya hasil quadrant cukup valid kok... Asal lihat nilai masing masing 
part bukan cuma nilai overall (cuma di quadrant advance)
  Kalo menurut saya, asal nilai processor, memory dan 3d naik biasanya kerasa 
banget efek nya... Tapi kalo cuman io malah kadang terasa lebih lambat.. Hehe
  Cmiiw


    On 8 May 2011 08:50, "S. Ardi" <[email protected]> wrote:


    How to cheat at benchmarks (and why we should downplay their importance)
    (source : http://bit.ly/lz6ZVB)




    Benchmarks can be useful, whether we're talking mobile or any other 
computer hardware.  There is a problem though -- you have to depend on everyone 
being honest.  Let me explain.  Anytime you see a video or a screenshot of a 
benchmark score, what you're really seeing is a measure of how the software 
interacts with the hardware.  There are two big problems with that: No two 
Android phones run the same software, and there's always some joker who wants 
to cheat.  recently our pal John from Phone Arena noted some Quadrant scores of 
a new handset that are just too low compared to the other phones listed.  And 
good on John for pointing it out.

    Sure, benchmarks can be fun, like see how little impact LG's UI has on the 
Optimus 2Xcompared to Stock Froyo, and they can be useful if you're running 
them yourself to gauge some changes you're making to your own software.  But 
we're over it. We're going to base our judgment of performance based on 
performance, and not numbers.

    It's just too damn easy to cheat at all benchmarks, because they are just 
Android apps.  Look at all the other magic folks do with Android apps, and ask 
yourself -- are benchmarks so different that they can't be "hacked"?  The 
answer is no, and we're going to show you how to hack at the easiest (but 
definitely not the only) one to manipulate, Quadrant. 

    Check it out after the jump.

    Let's have a little look at exactly what we're about to do here, through 
the magic of video : YouTube link for mobile viewing

    You're going to need to be rooted for this example.  There are plenty of 
other ways to cheat on unrooted phones by editing the code and rebuilding the 
app itself, but this easy way needs root.  You're also going to need a few 
tools:

      a.. Have adb working, with root access in the shell. 
      b.. Quadrant Standard from the Android Market.  We used Quadrant Advanced 
in our demo, because it's so easy to see the cheating.  You'll want to use 
Standard, because it's so easy to see the cheating. 
      c.. System Panel (or any app that can kill all processes) from the 
Android Market. 
      d.. SetCPU from the Android Market, or equivalent (if you have an 
overclocked kernel). 
      e.. Two hands, a keyboard, and no conscience.
    Install all your apps and reboot your phone.  Let it sit for 5 to 10minutes 
so all the syncing and scanning gets finished, then run Quadrant (see the 
"before" side in the image above) so you know the truth.

    Hook your phone up to your computer, and enter the shell.  As root, run the 
following command:

      mount -t tmpfs tmpfs /data/data/com.aurorasoftworks.quadrant.ui.standard

    Enter it exactly as written.  What that's doing is simple -- the I/O 
portions of all phones are the biggest bottleneck, so we're moving the Quadrant 
data folder off the physical storage, and into the RAM.  RAM is good.  Reading 
and writing to it is fast.  Super fast.  This goes away at reboot, so it's easy 
to take things back to normal.

    Next, we want to cancel out any CPU scaling effect.  Who needs to save 
battery, we want high scores!  Fire up SetCPU and crank the CPU clock speed as 
high as it will go, and choose "performance" as the CPU governor.  This will 
keep things running at top speed all the time.

    Now use whichever app you decided on (I use System Panel to monitor things, 
and it includes the dreaded kill-all as an extra function) to kill all your 
background tasks.  If you can kill system processes, even better.  We don't 
care how well the phone works, only how high the numbers are.

    Fire up Quadrant, and run your benchmark.  Run it two or three times to get 
it settled in, then start taking screenshots.  Realize just how easy it was to 
do this, then imagine what other cheats can be done by reverse engineering the 
benchmark apps and changing the math used to write the scores.  Add in a few 
other tricks like changing a line or two in the build.prop file to inflate the 
CPU scores, and you're golden.  Before someone says "Yeah, but I use Bechmark 
xyz9000 Pro and you can't cheat on that one."  Yes, you can.  Even I can, and 
there's plenty of people out there way more talented than I am.  Only believe 
benchmarks that use lots of meters and wires, with flashing lights, because 
anything else is just software that someone can hack.

    Now the playing field is level.  Congratulations, you're a cheater.


    -- 
    "Indonesian Android Community" Join: http://forum.android.or.id
     
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  -- 
  "Indonesian Android Community" Join: http://forum.android.or.id
   
  ===============
  Xperia arc with Mobile BRAVIA Engine
  http://www.sonyericsson.com/product/xperiaarc/video/mbe
  ---------------------
  Unlimited Data XL Mobile Broadband 
  http://www.xl.co.id/XLInternet/BroadbandInternet
  --------------------
  PING'S Mobile - Plaza Semanggi
  E-mail: [email protected] Ph. 021-96087100
  --------------------
  i-gadget Store - BEC Bandung
  E-mail: [email protected] Ph. 0812-21111191
  --------------------
  Toko EceranShop - BEC Bandung
  E-mail: [email protected] Ph. 0815-56599888
  ===============
   
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-- 
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===============
Xperia arc with Mobile BRAVIA Engine
http://www.sonyericsson.com/product/xperiaarc/video/mbe
---------------------
Unlimited Data XL Mobile Broadband  
http://www.xl.co.id/XLInternet/BroadbandInternet
--------------------
PING'S Mobile - Plaza Semanggi
E-mail: [email protected] Ph. 021-96087100
--------------------
i-gadget Store - BEC Bandung
E-mail: [email protected] Ph. 0812-21111191
--------------------
Toko EceranShop - BEC  Bandung
E-mail: [email protected]  Ph. 0815-56599888
===============

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