Hello from France
I have no question , my topic is just an Info ...
As you know the 32 bits version of ACAD 20xx-201x "ACAD.exe" task can use up to about 1.3 Gb Ram
At this point AutoCAD 32 bits 20xx-201x is completely unstable and will crash in a few seconds ...
On 32 bits Windows, a process is limited to 2 Go of memory used ...
But with 64 bits Windows the memory used by a Windows 64 bits process is "almost" unlimited !
In fact it depends from the main memory of the PC ...
So I have done some tests with ONE large 2D DWG (GIS/Map drawing) : 290 Mo (DWG 2007 format)
We are speaking of about : 800 000 Texts, 940 000 Plines, 230 000 Hatches, 680 000 Blocks and some others entities ...
Tests have been done with MAP 64 bits : 2011 & 2012 & 2013 & 2014 (latest SP installed)
and with ACAD 2013 & 2014 64 bits (latest SP installed) on Win Seven Pro 64 + SP 1 ...
All ACAD/MAP software vere running with SDI = 1 , it's better !
I have tested ONLY loading time and memory used by the 64 bits "ACAD.exe" of standard ACAD and MAP ...
MAP 2011 & MAP 2012 : loading = about 2 mn 30 secs - memory used about 6.6/6.7 Gb
MAP 2013 & MAP 2014 : loading = about 2 mn 20 secs - memory used about 6.8 Gb
ACAD 2013 & ACAD 2014 : loading = about 2 mn 00 secs - memory used about 7.1 Gb
The DWG is usable and no specific problem with any MAP or ACAD ...
BUT something is absolutely UNUSABLE : the properties dialog box when TOO MUCH entities have been selected !
It depends from the speed/power of the processor : between 100 000 to 500 000 entities
... and you must wait a very long time so you have to KILL the "ACAD.exe" process !
I know that since ACAD 2012, we have the new System Var PROPOBJLIMIT (0-32767) ...
But with 64 bits software we can know load and use very large DWG
so I think that Autodesk has to IMPROVE the sort and display of large selection set for the properties dialog box !!!
I am running on a HP Z1 WorkStation on W7 Pro 64 + SP1 , Xeon E3 1245 (Speed 3.3-3.7 Ghz, 8 Gb cache) , 32 Gb Ram , Quadro 1000m (2 Gb)
Waiting ...
The Health, Happy New Year, Bye, Pat