Shadow files / caching (Unresolved, but enough is enough)

jerrys

Senior Contributor Location: New Britain, CT, USA (between New York and Boston) Joined: Feb 10, 2010 21:36 Messages: 1038 Offline

Solved by

Jul 17, 2012 20:35

I just noticed some odd behavior, and I don't know if it's been there all along or if it is something new to my setup.

I have been used to being able to move the scrubber back and forth and having the preview keep up. Now it doesn't seem to be able to do that.

Actually, what seems to be happening is that if I go to an area on the timeline where I haven't been before (not necessarily at the end, just some place where the scrubber hasn't been), there can be a four-five second delay before the preview catches up. If I'm sliding around a fairly small area, there is less of a problem.

Also, if I simply jump (by clicking on the time codes) then there isn't any delay; it only happens when I slide the scrubber.

I could understand this if I were working on a huge, HD 3D movie; but this happens with a 15 minute piece that I've put together that is 720x480. I've edited longer bits without noticing this issue.

I thought about manually cleaning out the temporary files (in the preferences area), and I noticed that there is a long list of files; and each one has an entry in a column labeled "shadow." I do not have shadow files turned on.

Before I start ripping my system apart looking for a problem, does any of this sound familiar to anyone?

This message was edited 1 time. Last update was at Jul 23. 2012 18:56

Jerry Schwartz

CubbyHouseFilms

Senior Contributor Location: Melbourne, Australia Joined: Jul 14, 2009 04:23 Messages: 2208 Offline

Jul 17, 2012 22:02

Hi Jerry

How odd

Are you sure the Enable HD video processing (shadow file) box is unticked - no tick in box.

Preferences > General > Enable HD video processing (shadow file)

Also try

Preferences > Editing > Enable continuous thumbnails on video clips for easy recognition is also unchecked.

And

Preferences > Project > uncheck Auto Save Project (remember to Save As regularly)

Good luck

Happing editing

Best Regards

Neil
CubbyHouseFilms
My Youtube Channel
My Vimeo Channel
PD3.5, 5, 6 & 7. Computer: Dell Dimension 5150, Intel Pen. 2.80 GHz, 2GB RAM, NVIDIA GeForce 8600GT 256MB, Windows XP Pro!!
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jerrys

Senior Contributor Location: New Britain, CT, USA (between New York and Boston) Joined: Feb 10, 2010 21:36 Messages: 1038 Offline

Jul 18, 2012 13:38

Quote: Hi Jerry

How odd

Are you sure the Enable HD video processing (shadow file) box is unticked - no tick in box.

Preferences > General > Enable HD video processing (shadow file)

Yes. I've never had it ticked, and I double-checked.

Quote: Also try

Preferences > Editing > Enable continuous thumbnails on video clips for easy recognition is also unchecked.

And

Preferences > Project > uncheck Auto Save Project (remember to Save As regularly)

I've tried it with and without continuous thumbnails, and it doesn't seem to make a difference. I've also tried it with the preview at different resolutions, and that didn't help either.

I didn't try turning off autosave, but since it's set to 10 minute intervals it should only interfere once in a while. I'll try that, though.

One thing I did do that I need to work on is that I updated my NVIDIA drivers. I'll see if I can roll them back. Jerry Schwartz

davos

Newbie Location: Scotland Joined: Sep 27, 2011 03:09 Messages: 46 Offline

Jul 18, 2012 13:44

Hi Jerry
I frequently search along the timeline for still pics from my videos and get lags of 5 seconds all the time....most annoying.
I wondered if it was due to lack of space on my 120gb C drive so got a 240 gb and it made no difference. (though I still love my ssd)
As it happens to me daily I would love to see a solution but im afraid nothing i have done has got rid of it.
good luck
David

This message was edited 1 time. Last update was at Jul 18. 2012 13:45

jerrys

Senior Contributor Location: New Britain, CT, USA (between New York and Boston) Joined: Feb 10, 2010 21:36 Messages: 1038 Offline

Jul 19, 2012 11:43

What puzzles me is that I never noticed the issue before. I can't believe that it was there all along and I never noticed. Jerry Schwartz

jerrys

Senior Contributor Location: New Britain, CT, USA (between New York and Boston) Joined: Feb 10, 2010 21:36 Messages: 1038 Offline

Jul 20, 2012 20:32

I rolled back my NVIDIA drivers, and that didn't make any difference.

Maybe I just didn't notice this before, although that seems weird. Jerry Schwartz

CubbyHouseFilms

Senior Contributor Location: Melbourne, Australia Joined: Jul 14, 2009 04:23 Messages: 2208 Offline

Jul 20, 2012 20:47

Hi Jerry

That is odd.

I sometimes find that my set has some lag depending if you're in CLIP or MOVIE mode.

Happy editing Happing editing

Best Regards

Neil
CubbyHouseFilms
My Youtube Channel
My Vimeo Channel
PD3.5, 5, 6 & 7. Computer: Dell Dimension 5150, Intel Pen. 2.80 GHz, 2GB RAM, NVIDIA GeForce 8600GT 256MB, Windows XP Pro!!
PD8 Ultra v3022. Computer: Dell Studio 1747, Intel, i7 Q740 1.73 GHz, 8GB RAM, ATI Mob. Radeon HD 560v 1GB, Windows 7 Ult. 64
PD10 Ultra v2023. Computer: HP Pavilion dv7, Intel, i7 2630 2.00 GHz, 8GB RAM, ATI Mob. Radeon HD 6770 2GB, Windows 7 Pre. 64
PD12 Ultra v2930. Computer: HP Pavilion dv7, Intel, i7 2630 2.00 GHz, 8GB RAM, ATI Mob. Radeon HD 6770 2GB, Windows 7 Pre. 64
PD13 Ultim v3516. Computer: HP Pavilion dv7, Intel, i7 2630 2.00 GHz, 8GB RAM, ATI Mob. Radeon HD 6770 2GB, Windows 7 Pre. 64
PD16 Live v2101 Computer: HP Pavilion dv7, Intel, i7 2630 2.00 GHz, 16GB RAM, ATI Mob.Radeon HD 6770 2GB, Windows 7 Pre. 64
Director Suite 6: PowerDirector 16 Live, PhotoDirector 9, ColorDirector 6, AudioDirector 8

Cameras: Sony(s) HXR-NX5P, HXR-NX70P, NEX-VG10E, a6300 4k, HDR TG5E, GoPro 4 Black, Canon 6D DSLR

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Carl312

Senior Contributor Location: Texas, USA Joined: Mar 16, 2010 20:11 Messages: 9090 Offline

Jul 21, 2012 10:51

What is your Preview setting?

If it is set to a high resolution, try lowering the resolution is see if that reduces your lag.

Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.

PatC

Senior Member Location: Suffolk UK Joined: Nov 17, 2009 14:00 Messages: 156 Offline

Jul 21, 2012 12:01

Hi Jerry

What caught my eye was that you said "720 x 480" which shouldn't require much in the way
of PC resources at all, that seems really odd.

I normally work with 1920 x 1080 50p AVCHD and don't experience any such delay,
however MOV files do seem to make my system a bit laggy on the timeline.

Also when initially importing to the library AVCHD files just load in a flash while even
small mov files take several seconds. PD is a strange animal at times....

Patrick

jerrys

Senior Contributor Location: New Britain, CT, USA (between New York and Boston) Joined: Feb 10, 2010 21:36 Messages: 1038 Offline

Jul 21, 2012 15:16

My video is 720x480 because it is a capture from VHS.

It doesn't seem to matter what the preview resolution is.

It also doesn't seem to matter whether I'm in clip mode or not.

I used "detect scenes" to chop up my original, and discovered that having one longish (but we're talking a minute or so) clip in the mix would cause, or at least make visible, the problem.

I then removed all of the scenes and tried splitting the original video into smallish chunks. With just a few of the chunks on the timeline, I had the same problem.

If I'm moving around within a small timeframe, the problem isn't there. That's why I suspect some kind of caching is going on.

I'm attaching the dxdiag files this time.

Filename	64_Jerry_S_DxDiag.txt	Download
Description
Filesize	34 Kbytes
Downloaded:	512 time(s)

Filename	32_Jerry_S_DxDiag.txt	Download
Description
Filesize	41 Kbytes
Downloaded:	524 time(s)

Jerry Schwartz

Carl312

Senior Contributor Location: Texas, USA Joined: Mar 16, 2010 20:11 Messages: 9090 Offline

Jul 21, 2012 20:18

Jerrys,
With only 512 MB of Video memory does not help. You just have to take it slow.

Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.

jerrys

Senior Contributor Location: New Britain, CT, USA (between New York and Boston) Joined: Feb 10, 2010 21:36 Messages: 1038 Offline

Jul 21, 2012 21:01

Quote: Jerrys,
With only 512 MB of Video memory does not help. You just have to take it slow.

I'm sure you're right. I'm constrained by two capacities: my power supply and my wallet.

I could swear that I didn't have this problem until recently, and I actually worked on this same video tape a year or so ago.

I have the whole thing packaged on disks, so I'll investigate that and see if the resolutions were the same. Jerry Schwartz

davos

Newbie Location: Scotland Joined: Sep 27, 2011 03:09 Messages: 46 Offline

Jul 22, 2012 05:00

I have same problem with 1 gig video memory / 16 gig ram / Intel 2600k processor
David

This message was edited 1 time. Last update was at Jul 22. 2012 05:01

jerrys

Senior Contributor Location: New Britain, CT, USA (between New York and Boston) Joined: Feb 10, 2010 21:36 Messages: 1038 Offline

Jul 23, 2012 18:55

Well, I went back and looked at a previous capture from the same tape and had the same problem, so it isn't the video.

Either I was just more patient when I was younger, or the problem was introduced somewhere along the way. I probably was using either PD7 or PD8 back then, and of course my video drivers were older.

I think I'm going to surrender and just put up with the problem. Jerry Schwartz