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Thanks! So as best I can figure, 32-bits can only address 4G of memory, but
part of the 4G is used to hold the "page table", which points to pages of
data in virtual memory and so results in more than 4G of "total memory"?
But then I wonder, assuming the page table is part of the OS, wouldn't
taking 1G away from the OS and giving it to the apps possibly result in a
smaller page table and so perhaps *lower* the amount of virtual memory that
can be tracked? Oh well, just thinking out loud....
Steve
----- Original Message -----
From: "Tomasz Janeczko" <groups@xxxxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Monday, September 15, 2008 1:18 AM
Subject: Re: [amibroker] AmiBroker 5.17.0 BETA released
> Hello,
>
> http://en.wikipedia.org/wiki/Virtual_memory
> http://en.wikipedia.org/wiki/Virtual_address_space
>
> Best regards,
> Tomasz Janeczko
> amibroker.com
> ----- Original Message -----
> From: "Steve Dugas" <sjdugas@xxxxxxxxxxx>
> To: <amibroker@xxxxxxxxxxxxxxx>
> Sent: Monday, September 15, 2008 12:20 AM
> Subject: Re: [amibroker] AmiBroker 5.17.0 BETA released
>
>
>> TJ, thank you for adding /3GB ability, now I am able to run 4 instances
>> with larger opts than before - I still haven't hit the new limit yet.
>> 8 - ) But if you or anyone knows, I guess I still don't understand
>> exactly how the memory limitations work. I have 4G of RAM. At first I
>> thought that with virtual memory ( paging file ), I would be able to
>> effectively have more than 4G. Then I learned that 32-bit windows can
>> only
>> allocate 4G, and apps are limited to 2G, or 3G with /3GB switch. But when
>> I
>> finish running large opts and then look at Task Manager, it *looks* like,
>> with the paging file included, I *do* have more than 3G available to me.
>> I
>> have included some stats from Task Manager below - could anyone explain
>> to
>> me exactly how this works and if it is possible to know in advance how
>> much
>> total memory I can use? Thank you!
>>
>> Steve
>>
>> Task Manager stats after running 4 simultaneous large Opts
>> -----------------------------------------------------------
>>
>> Page file usage = 3.79 G
>>
>> Commit Charge ( total memory allocated to apps and OS )
>> total = 3.999 G
>> limit = 9.409 G
>> peak = 5.147 G
>>
>> Physical Memory ( RAM )
>> total = 3.406 G
>> available = 2.757 G
>> system cache = 0.579 G
>>
>>
>> ----- Original Message -----
>> From: "Tomasz Janeczko" <groups@xxxxxxxxxxxxx>
>> To: <amibroker@xxxxxxxxxxxxxxx>
>> Sent: Tuesday, September 09, 2008 1:44 PM
>> Subject: Re: [amibroker] AmiBroker 5.17.0 BETA released
>>
>>
>>> Hello,
>>>
>>> This is now fixed.
>>>
>>>
>>>
>>> CHANGES IN VERSION 5.17.1 (as compared to 5.17.0):
>>>
>>> a.. In 5.17.0 "Current symbol" selection in AA always used first symbol
>>> in the database. Fixed.
>>> http://www.amibroker.com/devlog/2008/09/09/amibroker-5170-beta-released/
>>>
>>>
>>> Best regards,
>>> Tomasz Janeczko
>>> amibroker.com
>>> ----- Original Message -----
>>> From: "Prashanth" <prash454.ta@xxxxxxxxx>
>>> To: <amibroker@xxxxxxxxxxxxxxx>
>>> Sent: Tuesday, September 09, 2008 7:18 PM
>>> Subject: Re: [amibroker] AmiBroker 5.17.0 BETA released
>>>
>>>
>>>> Hllo Tj,
>>>>
>>>> I am facing the same problem.
>>>>
>>>> If I click on either BackTest or Individual Backtest after selecting
>>>> Apply
>>>> to Current Symbol, it runs the backtest on the First Symbol of the
>>>> Database
>>>> ir-respective of which ticker is currently displayed.
>>>>
>>>> Regards.
>>>>
>>>> Prashanth
>>>>
>>>> ----- Original Message -----
>>>> From: "Tomasz Janeczko" <groups@xxxxxxxxxxxxx>
>>>> To: <amibroker@xxxxxxxxxxxxxxx>
>>>> Sent: Tuesday, September 09, 2008 21:51
>>>> Subject: Re: [amibroker] AmiBroker 5.17.0 BETA released
>>>>
>>>>
>>>>> I have run backtest /individual over current symbol and over watchlist
>>>> without any problems.
>>>>>
>>>>> 5.17 is highly recommended over 5.16 as
>>>>> 5.16 has a bug causing it to occassionally create very large files on
>>>> disk.
>>>>> All users should upgrade to 5.17 if they use any earlier beta.
>>>>>
>>>>> Best regards,
>>>>> Tomasz Janeczko
>>>>> amibroker.com
>>>>> ----- Original Message -----
>>>>> From: "Boris Kanevsky" <lanbor@xxxxxxx>
>>>>> To: <amibroker@xxxxxxxxxxxxxxx>
>>>>> Sent: Tuesday, September 09, 2008 5:59 PM
>>>>> Subject: Re: [amibroker] AmiBroker 5.17.0 BETA released
>>>>>
>>>>>
>>>>>
>>>>> > Hi Tomasz!
>>>>> > I have problem to run AmiBroker 5.17.0 BETA on AA,
>>>>> > when I try to backtest Individual stock from watchlist.?
>>>>> > When I return to 5.16.0 BETA it works fine.
>>>>> >
>>>>> > ------------------------------------
>>>>> >
>>>>> > Please note that this group is for discussion between users only.
>>>>> >
>>>>> > To get support from AmiBroker please send an e-mail directly to
>>>>> > SUPPORT {at} amibroker.com
>>>>> >
>>>>> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>>>>> > http://www.amibroker.com/devlog/
>>>>> >
>>>>> > For other support material please check also:
>>>>> > http://www.amibroker.com/support.html
>>>>> > Yahoo! Groups Links
>>>>> >
>>>>> >
>>>>> >
>>>>>
>>>>> ------------------------------------
>>>>>
>>>>> Please note that this group is for discussion between users only.
>>>>>
>>>>> To get support from AmiBroker please send an e-mail directly to
>>>>> SUPPORT {at} amibroker.com
>>>>>
>>>>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>>>>> http://www.amibroker.com/devlog/
>>>>>
>>>>> For other support material please check also:
>>>>> http://www.amibroker.com/support.html
>>>>> Yahoo! Groups Links
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> ------------------------------------
>>>>
>>>> Please note that this group is for discussion between users only.
>>>>
>>>> To get support from AmiBroker please send an e-mail directly to
>>>> SUPPORT {at} amibroker.com
>>>>
>>>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>>>> http://www.amibroker.com/devlog/
>>>>
>>>> For other support material please check also:
>>>> http://www.amibroker.com/support.html
>>>> Yahoo! Groups Links
>>>>
>>>>
>>>>
>>>
>>> ------------------------------------
>>>
>>> Please note that this group is for discussion between users only.
>>>
>>> To get support from AmiBroker please send an e-mail directly to
>>> SUPPORT {at} amibroker.com
>>>
>>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>>> http://www.amibroker.com/devlog/
>>>
>>> For other support material please check also:
>>> http://www.amibroker.com/support.html
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>
>>
>>
>> ------------------------------------
>>
>> Please note that this group is for discussion between users only.
>>
>> To get support from AmiBroker please send an e-mail directly to
>> SUPPORT {at} amibroker.com
>>
>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> http://www.amibroker.com/devlog/
>>
>> For other support material please check also:
>> http://www.amibroker.com/support.html
>> Yahoo! Groups Links
>>
>>
>>
>
> ------------------------------------
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
> http://www.amibroker.com/support.html
> Yahoo! Groups Links
>
>
>
>
------------------------------------
Please note that this group is for discussion between users only.
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SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
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For other support material please check also:
http://www.amibroker.com/support.html
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