Beta 8.80.0030 High CPU Usage

[ilya]

Windows 7 x86:
alpha 0: 6018.499 ms
alpha 1: 5996.111 ms

New results on v8.80.0034:
alpha 0: 5889.191 ms
alpha 1: 5907.327 ms

[Stefan]

My results (XP SP2, 1,2 GHz, 2GB)
with v8.80.0034:
~ 125 msecs

with v8.80.0033:
::alpha 0; ~65-70
::alpha 1; ~70-73

[admin]

Windows 7 x86:
alpha 0: 6018.499 ms
alpha 1: 5996.111 ms

New results on v8.80.0034:
alpha 0: 5889.191 ms
alpha 1: 5907.327 ms

Faster! Okay, that only puts a sharper focus on the culprit. It all seems to boil down to one particular API call (GdipDrawImageRectRectI) which has been messed up in Win7, or, more specifically, in the gdiplus.dll shipped with Win7. There's not yet much info about the latest gdiplus, but I'm squeezing the web for solutions...

[zer0]

Seeing as I'm running Win 7, I thought I'd add my findings to the bunch:

alpha 0: 5,638.619 ms
alpha 1: 5,650.661 ms

Seems to be the fastest of the lot so far on my Quad Core 6600 2.4GHz, 4GB RAM

[Stefan]

, or, more specifically, in the gdiplus.dll shipped with Win7. There's not yet much info about the latest gdiplus, .

Couldn't the Win7 users just put an GDIplus.dll from XP
into there XYplorer folder, then XYplorer should use just this version.
At least as an work around.

On this laptop XY use v 5.2.6001.22319:
http://rapidshare.com/files/339889674/G ... 9.zip.html
MD5: F31EB839B4D20AFC38FB679363DE1FF8

[zer0]

Couldn't the Win7 users just put an GDIplus.dll from XP
into there XYplorer folder, then XYplorer should use just this version.
At least as an work around.

No, I don't think so. Vista/Win 7 use Desktop Window Manager, so GDI and GDI+ render path goes through WMD. This is not the case in XP.

[admin]

I'm now sure that gdiplus in Win7 is buggy and can only hope for a fast update by MS.

For Win7 users only:
For the meantime I have one last and extremely small hope. Please download this exe:
http://www.xyplorer.com/download/XYplorer_8.80.0035.zip
and try this line:

Code: Select all

::alpha 2;

If this is still slow I will have to write extra code for Win7 users -- a thing no programmer likes to do...

[zer0]

Code: Select all

::alpha 2;

5,641.017 ms

P.S. If it is a bug in GDI+, then I hope that you will make Microsoft aware of this. The next "Black Tuesday" is in a little over 2 weeks.

[ilya]

Windows 7 x86:
alpha 0: 6018.499 ms
alpha 1: 5996.111 ms

New results on v8.80.0034:
alpha 0: 5889.191 ms
alpha 1: 5907.327 ms

alpha 2: 5686.265 ms

[admin]

Code: Select all

::alpha 2;

5,641.017 ms

P.S. If it is a bug in GDI+, then I hope that you will make Microsoft aware of this. The next "Black Tuesday" is in a little over 2 weeks.

It won't help me even if they fix it because I have to do things now to support Win7-with-buggy-gdiplus that cannot be done in a conditional way. I have to rewrite parts of the app that even go down to the embedded resources.

[admin]

Should be fixed now (v8.80.0036). Try this to see a significant speed improvement (compared to alpha 0):

Code: Select all

::alpha 3;

[ilya]

Windows 7 32bit, XYplorer v8.80.0036:
alpha 0: 5685.699 ms
alpha 1: 5819.771 ms
alpha 2: 5753.559 ms
alpha 3: 19.790 ms

[nas8e9]

Should be fixed now (v8.80.0036). Try this to see a significant speed improvement (compared to alpha 0):

Code: Select all

::alpha 3;

alpha 0: ~ 8.500 msecs
alpha 3: ~ 15 msecs

XYplorer 8.80.0036 beta
Windows 7 x86
*old* hardware .

[admin]

Good. So I assume the tree is fast again.

[admin]

BTW, 4.2 msecs here on alpha 3 -- am I the fastest?