PRE 9 Performance question

Hi all,
Finally made the big move from PRE4 to PRE9.0.1. As usual with PRE upgrades there are functions that were removed that make me scratch my head, such as no longer able to designate favorate transitions. And moving the zoom in-out slider over to the edge of the display, and dumbing down the Markers icons (resulting in taking more mouse clicks now just to add a marker). But those are just annoyances.
My actual problem is that some functions seem to be much slower than in my previous version (on same PC). For example, a simple rendering of two 5 second title clips with a transition joining them takes longer than real-time to render (takes longer than 10 seconds to render 10 seconds worth of video). Nothing special - two tracks, one A/V and one just the title. Rendering other places such as fade-in/out is slow also. This is SD AVI video from the same DV camera I've used for years (Panasonic PV-GS320).
Scrubbing works fine - I can't move the CTI faster than it can display/play audio. DVD burn time seems reasonable (and successful) although I have not done anything lengthy yet. No crashes, and on the plus side so far all the problems I had with the titler in PRE4 are fixed now. I do notice the same problem Neale mentioned where displaying the thumbnails on the timeline is very slow.
Update: I did notice one wierd thing: when you mouse-over a clip on the timeline and you get the little window with the start/end/duration information, the little window actually blinks off and on - and I'm not moving the mouse. On (1/2 second or so) off (1 second). It's on just briefly enough it takes a few tries to read the information.
Specs on the PC:
HP PC with AMD Athlon II x4 630 CPU @ 2.8 GHz
6GB RAM
Windows 7 64 bit - current on patches
Three internal SATA HD's (one for software, one for video, one for rendering)
Current video driver (NVIDIA GEFORCE 9100 version 8.17.12.6099)
Current Quicktime 7.6.9
Can anyone think of anything I'm not checking? Or is PRE9 just slower?
Thanks!
Bob

... and to add to Steve's comment, you will have the same response with more
demanding video (Full HD TOD, AVCHD etc).
So to keep it seamless, they made it slow for SD as well

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Oracle EBS R12 Pre - Implementations phase question air

Oracle EBS R12 Pre - Implementations phase question air
Posted: Jun 30, 2009 10:22 AM Edit Reply
Dear all Gurus,
We are going to implement Oracle EBS r12, for industrial concern, we have following quires if any peer may suggest.
1) we heard the oracle R12 has build new release with 11g db , is it been practical for choosing it for corporate ???
2) Linux Read hat which version is more stable like 5 releases is compatible with R12 new release?
3) We are also thinking for 64 bit architecture rather than 32 bit, could any one figure out the practical pros and cons for this.
4) We are also wondering about the server machine brand and its configurations like HP DL380 G6, DELL 2850? could any one share abut his experience about the same.
5) What sort of Server configurations (Processor , 2way -4way , RAM , HD and other accessories ) for r12 Multi node setup for 150 clients (DB Server , Apps Server , Test Prod )
6) What should be backup strategies like tap backup and how much space requirements we must have provisioned for retaining almost 2~3 month backup.
7) Application implementations methodologies?
8)
I know to address our queries would be time consuming for you bust peoples , but I would really oblige for being shared your journey this would defiantly the PATH way for other like mentoring for others.
looking forward your valuable instructions ASAP.
Thanks & Best Regards
Muhammad Waseem
Manager IT
Neee-Has Textiles Divisions
31-Q Gulberg II Lahore
Pakistan
92-0333-4240949

Duplicate post.
Oracle EBS R12 Pre - Implementations phase question air
Oracle EBS R12 Pre - Implementations phase question air

Simple performance question

Simple performance question. the simplest way possible, assume
I have a int[][][][][] matrix, and a boolean add. The array is several dimensions long.
When add is true, I must add a constant value to each element in the array.
When add is false, I must subtract a constant value to each element in the array.
Assume this is very hot code, i.e. it is called very often. How expensive is the condition checking? I present the two scenarios.
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for (int ii=0;ii<dimension1;ii++)
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if (add)
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for (int ii=0;ii<dimension1;ii++)
for (int iii=0;iii<dimension1;iii++)
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else
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for (int ii=0;ii<dimension1;ii++)
for (int iii=0;iii<dimension1;iii++)
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       matrix[i][ii][iii][...] -= constant;
}Is the second scenario worth a significant performance boost? Without understanding how the compilers generates executable code, it seems that in the first case, n^d conditions are checked, whereas in the second, only 1. It is however, less elegant, but I am willing to do it for a significant improvement.

erjoalgo wrote:
I guess my real question is, will the compiler optimize the condition check out when it realizes the boolean value will not change through these iterations, and if it does not, is it worth doing that micro optimization?Almost certainly not; the main reason being that
matrix[i][ii][iii][...] +/-= constantis liable to take many times longer than the condition check, and you can't avoid it. That said, Mel's suggestion is probably the best.
but I will follow amickr advice and not worry about it.Good idea. Saves you getting flamed with all the quotes about premature optimization.
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I've got a little performance question regarding xcontrols. I observed rather high cpu-load when using xcontrols. To investigate it further, I built a minimal xcontrol (boolean type) which only writes the received boolean-value to a display-element in it's facade (see attached example). When I use this xcontrol in a test-vi and write to it with a rate of 1000 booleans / second, I get a cpu-load of about 10%. When I write directly to a boolean display element instead of the xcontrol,I have a load of 0 to 1 %. The funny thing is, when I emulate the xcontrol functionality with a subvi, a subpanel and a queue (see example), I only have 0 to 1% cpu-load, too.
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Message Edited by soranito on 04-04-2010 08:16 PM
Message Edited by soranito on 04-04-2010 08:18 PM
Attachments:
XControl_performance_test.zip ‏60 KB

soranito wrote:
Hello,
I've got a little performance question regarding xcontrols. I observed rather high cpu-load when using xcontrols. To investigate it further, I built a minimal xcontrol (boolean type) which only writes the received boolean-value to a display-element in it's facade (see attached example). When I use this xcontrol in a test-vi and write to it with a rate of 1000 booleans / second, I get a cpu-load of about 10%. When I write directly to a boolean display element instead of the xcontrol,I have a load of 0 to 1 %. The funny thing is, when I emulate the xcontrol functionality with a subvi, a subpanel and a queue (see example), I only have 0 to 1% cpu-load, too.
Okay, I think I understand question now. You want to know why an equivalent xcontrol boolean consumes 10x more CPU resource than the LV base package boolean?
Okay, try opening the project I replied yesterday. I don't have access to LV at my desk so let's try this. Open up your xcontrol facade.vi. Notice how I separated up your data event into two events? Go the data change vi event, when looping back the action, set the isDataChanged (part of the data change cluster) to FALSE. While the data input (the one displayed on your facade.vi front panel), set that isDataChanged to TRUE. This is will limit the number of times facade will be looping. It will not drop your CPU down from 10% to 0% but it should drop a little, just enough to give you a short term solution. If that doesn't work, just play around with the loopback statement. I can't remember the exact method.
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Message Edited by lavalava on 04-06-2010 03:34 PM

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832596 wrote:
Hi,
i've following questions about report performance:
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2) When i log in Oracle BI, what are objects that BI Server pre-load, in addition to session or repository variables and users/groups?I think that is about it. BI server activates all the session variables, repository variables ,and picks up groups/roles of the user that is logging in.
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I am editing a video in FCE that consists solely of still photos.
I am creating motion effects (pans and pullbacks, etc) and dissolve
transitions, and overlaying titles. It will be played back on dvd
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actually exporting my 300 dpi photos to 72 dpi before working with them in Motion?
Don't confuse DPI with resolution. Your video screen will only show about 900,000 pixels in HD and about 350,000 pixels in SD totally regardless of how many pixels there are in your original.
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