32bit and 64bit AB分别
想請教各位大大, 32bit 和 64bit AB, 在同一部PC上, 64bit AB可以跑快幾多? 有大大比較過嗎?thx!
64-bit AB runs around 20% faster i.e. analysis. Depends IB web site also said this, but any one try it before?Is it really has 20% more? Yes, I tried it myself.
IB website? What did they write in regards to AB?
joshsmi 發表於 14-3-15 00:11 static/image/common/back.gif
Yes, I tried it myself.
IB website?
sorry, should be AB, and I use IB data feed
then, do you think 64bit is better in any condition?
frankychan 發表於 14-3-15 00:13 static/image/common/back.gif
sorry, should be AB, and I use IB data feed
then, do you think 64bit is better in any condition?
Sure, 64-bit has many advantages over 32-bit. One problem is that still some data vendors don't offer 64-bit connections.
joshsmi 發表於 14-3-15 00:34 static/image/common/back.gif
Sure, 64-bit has many advantages over 32-bit. One problem is that still some data vendors don't of ...
thank you for your comment.
本帖最後由 joshsmi 於 14-3-15 00:41 編輯
BTW here is a comparison from a few years back comparing 32-bit and 64-bit speed difference.
32-bit AB on 32-bit OS
http://i.imgur.com/OxcUocb.png
64-bit AB on 64-bit OS (obviously)
http://i.imgur.com/u2SzvrZ.png
You see difference is in between 20% to 30% there.
Same hardware, same data, same settings, same AFL 本帖最後由 IBM2012 於 14-3-15 01:42 編輯
32bit-64 bit (execute afl speed) = only 0.xsecond (RT chart),
AFL coding technique & quality > CPU poweror 64 bit (if your code is very very big )
Yeah, it was tested on around 2 months of tick data and 1 minute timeframe on an old PC, just Intel dual core, 4GB RAM. So not that big a deal, nothing special. It's already a few years back to test if what AB said is true.
Anyway, yeah in general AB is not such a slow donkey like MC or NT you know. So it doesn't surprise me that you seem to be surprised. :D You know,back then a friend of mine tested the same system with MC and with much better hardware and with overclooked machine, more cores and more RAM, so basically up-to-date technology!!! lol You know what? It was executed at nearly the same speed as this AB test on a much older machine with outdated hardware. :D I also did a test with MC 64-bit that day back then. AFL translated to PowerLanguage, same data, same machine, same settings, 2500 optimization steps.
It took MC 632 seconds compared to 153 seconds of AB 64-bit (as per picture above). 本帖最後由 joshsmi 於 14-3-15 01:37 編輯
IBM2012 發表於 14-3-15 01:07 static/image/common/back.gif
32bit-64 bit (execute afl speed) = only 0.xsecond (RT chart),AFL coding technique & quality >...
@IBM2012
As per picture
backtest:
32-bitAB: 0.12 ms
64-bit AB: 0.09ms
9/12*100 = 75%
100% -75% = 25%
optimization:
32-bit AB: 211 seconds
64-bit AB: 153 seconds
153/211 *100 = 72.5%
100% - 72.5% = 27%
Percentage is the thing that counts.
Hi,
小弟兩者都有用過
雖然沒有比較數據來佐證
可是感覺起來當然還是64bit的快多了
無論是自我感覺良好還是實際執行XD
可以用64bit的就用64bit的就對了
別想太多
參考看看吧 joshsmi 發表於 14-3-15 01:17 static/image/common/back.gif
Yeah, it was tested on around 2 months of tick data and 1 minute timeframe on an old PC, just Intel...
OK, I got it, thx!
It means 64bit is much better.
As I use IB data feed now, and I do manual trade at this moment. I usually open 7 charts, with different time frame of a symbol, and then trade. I always found AB will use about 40% to 60% CPU load. The AFL using is not nota complex one, so I feel a bit surprise why CPU load is so high.
That's why I want to swtich to 64bit, for better CPU load.
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