'new' inventions meant to be improvements

Discussion in 'Chit Chat' started by sorex, Nov 11, 2015.

  1. sorex

    sorex Expert Licensed User


    Last night I was testing and double checking some drivers and firmwares for my Dell Precision M4300 laptop which is a so-called mobile desktop.

    Having a look at some performance features in the BIOS I noticed like before that Speedstep & Dynamic Acceleration were on.

    So this is as optimal as it can get.

    Yeah right ;)

    When I was tweaking these, which is plain on or off, I had some surprising results.

    SS: Intel SpeedStep
    DA: Intel Dynamic Acceleration
    1C: Single CPU benchmark with CPU-Z
    MC: Multiple CPU benchmark with CPU-Z
    Pi: SuperPi 
    mod 1.5 XS

    SS   DA    1C   MC   Pi
    on   on    
    078  154  58s
    on   off   
    078  132  54s
    off  off   
    115  242  36s
    off  on    
    115  230  38s
    as you can see turning off these 'improvement features' makes my laptop 47-57% faster!

    SuperPi's first value was 62% faster (36s) than the time needed with the 2 features on (58s).

    Where is this technical blahblah leading me too?

    having a look at compiling speeds in the B4x tool set didn't seem to be much faster but since it relies a lot on 3rd party stuff (java) the compile times vary a lot even when not touching the source at all.

    @Erel: a total compiling time before the "send to device" line would be nice for measurement reasons ;)

    Let's have another look at one of the v5.x problem points encountered by several people...

    re-enabling the implicit autocompletion...

    surprise surprise...

    the autocompletion stuff appears at once
    no more delays when having a key constantly pressed
    CPU dropped from 95% to 60% during the keypress

    and this is after changing the ini lines back to their original values (altho 1000 seems better for thread2)


    the designer...

    selecting another view (label in this case) has a slow refresh of the properties panel(s).
    unfortunately there doesn't seem to be an improvement here and I don't feel to reboot once again to change the setting to meassure it ;)

    I don't know if this slowdown has been mentioned yet so I will do it if I can't find a thread about it.


    double check your bios and don't always believe what you read, dare to tweak and compare and it might be a benefit in the end.

    In my case it seems to gain the missing cycles needed to have B4x's IDE optimal running.

    hopefully this solves something for those who have similar B4x problems and features in their BIOS (could be named turbo mode these days too)
    KMatle and Erel like this.
  2. Erel

    Erel Administrator Staff Member Licensed User

    Are you using .Net Framework 4.5.2? There is a related optimization that is disabled on older versions due to stability issues.
    Peter Simpson likes this.
  3. sorex

    sorex Expert Licensed User

    yes, according to add/remove programs it's 4.5.2 (4.5.51209).

    it's like it's removing and recreating these labels and input boxes each time.
  4. sorex

    sorex Expert Licensed User

  5. sorex

    sorex Expert Licensed User

    I don't mind a small delay but 2 seconds is kind of a problem.

    when I need to change a setting in each of them I lose half a minute just for that panel refresh.

    maybe it just needs to store the last view type and when it is the same it just fills in the values instead of recreating everything.
  6. sorex

    sorex Expert Licensed User

    I've put the issue to the bug/whish forum. If this can be checked again that would be nice.
    Peter Simpson likes this.
  7. KMatle

    KMatle Expert Licensed User

    It's just a Intel Core 2 Duo T9300, isn't it? Time for a new one? i5 perhaps?
    Peter Simpson likes this.
  8. sorex

    sorex Expert Licensed User

    yes, fast enough for what I do tho.

    sure, if you can borrow me forever €700+ I'll get one ;) Don't have a budget for a new one.

    Actually I have a better one but I don't know if it's an Ix but that sucker is 17" and weighs too much to sit with in the couch.
    Funny thing is that it has on the bottom a sticker with "Warning. Don't put this on your lap" :)
    lemonisdead and MikeH like this.
  9. sorex

    sorex Expert Licensed User

    Just checking some site about the prices... i3 has become very cheap.

    after some previous tests I figured out that the speed of an i3, i5 and i7 is the same (per CPU model) for a single core app so what the difference between these 3?

    dual, quad & octa core?
    Last edited: Nov 13, 2015
  10. sorex

    sorex Expert Licensed User

    Hold yar horses!

    Today I checked that other faster laptop and it was a Packard Bell with AMD Turion 64 X2.
    It appeared to be a lot faster while the CPU specs were equal to my Dell Precision M4300
    as the Turion was an answer to Intel's Core 2 Duo series.

    Strange is't it?

    so the checking'n tweaking continued with even more massive results.

    apparently the system might throttle your CPU speeds based on some weird or unknown reasons.
    With Dell it could be the adapter check but I still use the original 65W one and the BIOS didn't nag about it.

    In my case the CPU was locked to 6 multipliers and a total max of 1.2GHz.

    With ThrottleStop I was able to force it to 13 multipliers with a max of 2.4GHz and an increase of voltage from max 1 to 1.2 (needed as I got a few bsod's due to the lack of voltage)

    the results...

    superPi dropped from the original 58s to 14 seconds! (x4)

    CPU-Z benchmark value went from the original single core 78 to 333 (x4.25)
    for dual core it went from 154 to 703. (x4.5)

    so my system is suddenly 4 times as fast in some tests.

    lets have a look at Erel's babies.

    B4x boots faster
    autocomplete > fast
    reported designer delays > gone
    compilation > a lot faster
    B4J app start after compilation > a lot faster

    The lock returns after a reboot so I just need to reopen the tweak tool (it's in the startup folder now)

    I guess I saved myself 700+ euros for a while ;)
    Erel, RandomCoder and cimperia like this.
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