Performance issues with .idws

[jregehr]

I am having severe performance issues with a multi-sheet .idw in Inventor 7. The .idw contains 10 sheets and was originally created in Inventor 5.3. The .idw was migrated to Inventor 7 using the migration utility.



The hardware we are opening the .idw on exceeds Autodesks Preferred System Requirements for Inventor 7.



In Inv 5.3 the .idw took about 4-6 minutes to open now in Inv 7 it takes about 10-12 minutes to open and about 10 minutes to switch between sheets.



Any ideas as to what could be causing these performance problems? Is there a maximum number of sheets that should exist in an .idw?



Jeff Regehr

[Anonymous]

Jeff,

Do you have the 5.3 data (you should have created
a back up before you migrated) that you can post so I can do some
benchmarking?

--
Regards,
Jason Ruge
Drawing Manager Tech Lead
Inventor
QA
Autodesk, Inc.

style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

"jregehr" <
href="mailto:jregehr@venmarces.com">jregehr@venmarces.com> wrote in
message
href="news:f16caff.-1@WebX.maYIadrTaRb">news:f16caff.-1@WebX.maYIadrTaRb...

I
am having severe performance issues with a multi-sheet .idw in Inventor 7. The
.idw contains 10 sheets and was originally created in Inventor 5.3. The .idw
was migrated to Inventor 7 using the migration utility.

The hardware we
are opening the .idw on exceeds Autodesks Preferred System Requirements for
Inventor 7.

In Inv 5.3 the .idw took about 4-6 minutes to open now in
Inv 7 it takes about 10-12 minutes to open and about 10 minutes to switch
between sheets.

Any ideas as to what could be causing these
performance problems? Is there a maximum number of sheets that should exist in
an .idw?

Jeff Regehr

[jregehr]

The files are about 60MB compressed and contain sensitve company information that I do not want to post in a public discussion group. What are my options to get the files to you?

Jeff Regehr

[Anonymous]

I for one do not recommend more than 1 sheet in idw's.
I tried this several times and had all kinds of performance issues. 4-6 minutes for your 5.3 files to me seems unacceptable. Besides, thats just to call up the active sheet. Now activate one of your other 10 sheets and wait and wait etc.

[WilliamT]

Jason, I have a customer who is also noticing considerable performance loss in idw's since moving to IV7. I have a data set in which a 50 part (approx) assembly drawing - created in IV5.3 and migrated to 6 - is now painfully slow in IV7. The same drawing was fine in IV6 but, even after migrating to 7, and trying various different graphics drivers and settings, it is now so slow that it has become completely unusable. The difference is staggering.

I would be happy to provide you with the dataset but, like Jeff's, it's not small (around 20MB zipped) and also may contain some sensitive information. What's the best way to get it to you?

Thanks, WT

[Anonymous]

Out of curiosity.  Do the IDW have shaded
views?  If they do does speed increase once the views become
precise?

Kathy Johnson

[Anonymous]

Hey WT,

If you would like to send the data to me please
send me a copy of the 5.3 data in 1 zip file and a copy of the 6/7 data in
another zip file.

Burn these to a CD and mail them (include a letter
so I know what the CD is in regards to) to me.

email me at
href="mailto:jason.ruge@autodesk.com">jason.ruge@autodesk.com to get my
mailing address.

--
Regards,
Jason Ruge
Drawing Manager Tech Lead
Inventor
QA
Autodesk, Inc.

style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

"WilliamT" <
href="mailto:william@key2cad.com">william@key2cad.com> wrote in message

href="news:f16caff.3@WebX.maYIadrTaRb">news:f16caff.3@WebX.maYIadrTaRb...

Jason,
I have a customer who is also noticing considerable performance loss in idw's
since moving to IV7. I have a data set in which a 50 part (approx) assembly
drawing - created in IV5.3 and migrated to 6 - is now painfully slow in IV7.
The same drawing was fine in IV6 but, even after migrating to 7, and trying
various different graphics drivers and settings, it is now so slow that it has
become completely unusable. The difference is staggering.

I would be happy to provide you with the dataset but, like Jeff's, it's not
small (around 20MB zipped) and also may contain some sensitive information.
What's the best way to get it to you?

Thanks, WT

[WilliamT]

Hi Kathy,

The IDW in question does have shaded views but, although they take a long time to become precise, the drawing doesn't speed up at all when they do. However, changing the views back to hidden line removed makes quite a bit of difference. It's as if I'm using a substandard graphics card but I'm running a P4(2GHz) with a Quadro 4 750 and 1.5 GHz RAM so it should be up to it. The disturbing thing is that the same drawing was fine on previous versions on a machine with less RAM.

Thanks for your input though
William

[Anonymous]

Shaded IDW do take up more processing then hidden
line.  I have found that if you switch to shaded views before you print and
do all work in hidden it makes a big performance difference.  I had one IDW
that I could not work on in shaded view but could in hidden line.  Changing
it to shaded for printing worked well.

Kathy Johnson