Slow pans, zooms, redraws, regens
Hi Can somebody help me out I am trying this software for the first time. I am an old acad user.I have downloaded V9 and was trying to draw but wound up going back to acad because I cannot stand the slow operation. The zooms, pans, redraws and regens are incredibly slow in comparison to the same drawing being run in acad 2006.I would love to get rid of acad but not at this rate.
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I have not used Acad for a long time so can't really compare. Large zooms in a large file are a slight drag and switching between Mspace and Pspace definitely, but generally speed is ok for me. Opening large files always seems slow.I have some trouble with large files from Acad users which sometimes seem much larger than they should be and occasionally Viewres is set much higher than 100. I would like to know how fast these behave on the system in which they originated. They often have never been purged and large amounts of hatching don't help.My own files get to about 2-4Mb and their speed is generally ok for me. Nothing more annoying than waiting for the drawing to catch up.
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Hi JohnThese are quite large files that I am using. They are general arrangements of large industrial buildings and equipment. 20 mb is common. I purge the drawings often and always set my dimscale, ltscale, viewres, etc to values which should help drawing speed. I open the same drawings on the same computer with autocad and nearly all of the commands run much quicker. Doug
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Files that size are a problem for me too. I receive building architecturals to use for mech services and fairly soon reduce them to the basics of what I want, but they are slow until that's done.My machine is fairly pedestrian about 2 years old, it helped just a bit when I doubled the ram to 2Gb.There have been about 4 revisions of Bcad V9, about #2 was noticeably slower and that has been fixed. I can't offer much else except I have a lisp called Killdots which removes proxies (I think) which I found. It often finds one or two, but in a recent set it removes thousands and that helped the file sizes a lot.Still a problem though, and I didn't know Acad now handled big files that much better. When I last used it (~1998), it wasn't so fast.
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Hi JohnAcad seems to handle large files much better. Once I have the settings correct I can zoom and pan basically in real time.Its too bad because there are a lot of things that I like about this software but if it is so slow I will have to return to Acad.I am also a little surprised that there is no moderator looking and responding to these forms.
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Just checking a 20Mb file I have from someone's Acad system. It takes 15 secs to open, 10 secs to change between Layouts and 7 secs to thaw all layers. Those operations are annoying, but RT Zoom and Pan are pretty much instant.Copy or Move a lot of entities tends to stagger, I turn Dragmode off if I have to do that. That's only an occasional problem.I believe there was a drop in zoom speed somewhere between V8 and the last couple of V9,s so again just make sure you are trying the latest Doug.Certain things in Acad files seem to slow operation in Icad, such as embedded text formatting.Oh Bricsys monitor comments and listen to support requests alright, they are by far the most responsive software supplier I know.I find Icad beautifully stable. I guess Acad is good too now, but it was not very stable when I left it for Icad98. It was said releases were like Star Wars films - only the even numbers were good.
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If you have scanned images,, turn them off. Bricscad V8 did not have a problem with scanned images and panning but V9 does. It is a bug that they are fixing.
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When creating Bricscad V8 as the first dwg editor based on the new DwgDirect libraries from Open Design Alliance,our primary concern was to ensure highest possible compatibility with the dwg format, not only when reading/writing dwg filesbut also by completely avoiding to convert dwg entities back and forth to older dwg formats during internal processing.Second concern was to ensure highest possible compatibility with the dwg programming APIs.Therefore thousands of methods of the COM API have been rewritten,the LISP engine was replaced by a very fast one, and the LISP API was extended with thousands of functions,the ADS/SDS compatibility was improved,and last but not least, since Bricscad V9 we offer BRX: the first compatible ARX alternative.Third concern was performance, as there is little point in creating useless stuff very fast.Between V8 and V9, pans, zooms and redraws on average became 3 times faster,this is an ongoing effort, steadily continued.For very large drawings, there's no denying that AutoCAD, today, still clearly outperforms Bricscad V9.Our goal is to deliver a valuable product at a fair price,therefore we offer the 30 day trial versions to verify if Bricscad suits your needs.Kind regards
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Is there any increase performance on Bricscad V11 ?
Thanks
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I can only compare Bricscad V11 to Autocad 2011. Bricscad starts faster. Bricscad opens a 7.6MB file created in Autocad MEP 2011 faster. Using the same file Bricscad changes layouts faster. I don't see any difference in pan, zoom or redraw. Autocad is faster at regen -- Autocad is under a second while Bricscad is just over 2 seconds.
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I have been working with Bricscad since 3 years, I have seen Bricscad performance improve dramatically over the years and today Bricscad V11 offers very close or even surpassing benchmark figures as far as performance under various ctageories are concerned. Having developed our Lisp-based GeoTools application on AutoCAD and subsequently ported the same code-base to Bricscad, I found the Lisp engine performance even more significantly better in Bricscad than in AutoCAD. The GeoTools code uses a lot of (command...) based functions as well and this is tehrefore a test of the command interface resposne as well.
I have documented some of my timing in this blog atricle pasted early 10 month back.
Regards
Rakesh Rao
www.coordsys.com0 -
I use SprinCAD on the V11 platform, I would like to add that command execution is very slow by comparison to ACAD. Stuttering displays and partial displays as well and I'm running 512 dedicated memory on the video card, 2 GiG of RAM and an AMD 64 x 2 dual core 4600+ processor. Is there a list of settings to be explored that would possibly improve performance? I'm new to BricsCAd but I tried turning Regenauto to off and that hasn't helped.
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