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Forum: VirtualDJ Technical Support

Tema: [Solved] Track Analysis Very Slow
I have a fast computer with 6 cores, an SSD, and 32 GB RAM running Windows 10 64-bit Pro.

I'm running the latest 64-bit beta of VDJ.

I just analyzed about 300 tracks for BPM, key and noticed that VDJ was analyzing one track at a time. In the past, I noticed several tracks at a time being analyzed.

Because of this behavior, it took 5-6 times the amount of time to do the job.

What changed?
 

Mensajes Sun 21 Jul 19 @ 1:25 pm
AdionPRO InfinityCTOMember since 2006
Were you playing tracks during analysis? Was the video output active? Video playing perhaps?
 

Mensajes Sun 21 Jul 19 @ 1:28 pm
Adion wrote :
Were you playing tracks during analysis? Was the video output active? Video playing perhaps?


No. I was not playing any music, on any app. Video was not active.

It's strange.

 

Mensajes Sun 21 Jul 19 @ 2:21 pm
I went the extra mile:

1. Loaded the latest 64-bit beta on another Windows 10 machine
2. Downloaded some music

The analysis runs exactly the same: one file at a time.

If that is expected behavior, so be it. However, in past versions, multiple files were analyzed at the same time. I'm assuming this is done with the multiple cores of the processor.

However, the latest beta analyzes one file at a time.

Anyone know how I can step back my installation.
 

Mensajes Mon 22 Jul 19 @ 12:03 pm
AdionPRO InfinityCTOMember since 2006
Which cpu do you have exactly?
 

Mensajes Mon 22 Jul 19 @ 12:13 pm
Adion wrote :
Which cpu do you have exactly?


In my main machine, the first one that exhibited this behavior, I have Intel Core i7-7820X.

In the laptop that I just tried there is an Intel Core i7-7500U.

Is there a way to step back on the 64 bit betas?

BTW I tried the latest 32 bit version and it exhibited the same behavior.

 

Mensajes Mon 22 Jul 19 @ 12:20 pm
locodogPRO InfinityModeratorMember since 2013
 

Mensajes Mon 22 Jul 19 @ 12:34 pm
locodog wrote :
For public release x64 https://virtualdj.com/download/virtualdj8/pc64
but before you switch, check your songLoadPriority option


SongLoadPriority is "normal"

Is that the correct setting?

Can you guys confirm that what I am seeing is a bug, expected behavior or a user-related issue?

 

Mensajes Mon 22 Jul 19 @ 12:38 pm
My 64 bit version (b5095) on my desktop still does the multiple file analysis, lightning fast. Intel i7 7700K 4.2GHz.

There must be some issue with your system.
 

Mensajes Mon 22 Jul 19 @ 12:55 pm
FYI i7-7500u only has 2 cores so will probably only do 1 at a time on that machine
 

Mensajes Mon 22 Jul 19 @ 12:56 pm
AdionPRO InfinityCTOMember since 2006
Still working fine here too.
The i7-7500U is indeed only a 2-core, so won't do multiple files at the same time.

From what I found the i7-7820X should be an 8-core, so that should indeed work.
Did you check task manager if windows correctly detects it as an 8 core?
 

Mensajes Mon 22 Jul 19 @ 1:38 pm
Ok, a big "nevermind". Thanks for everyone helping me. I figured it out.

1. I noticed another app was only using 4 cores.
2. I googled "why is my processor using less than the total number of cores"
3. I checked the msconfig app and remember that when I was trying to fix slow boot times (which turned out to be due to a crappy USB 3 hub), I had altered a setting related to number of processors, under the Boot tab > Advanced Options. I had entered "4" as the number of processors.
4. So I unchecked that, and restarted.
5. Checked VDJ and the other app that was only using 4 cores, and both worked at their full core potential again.

I like to solve my own problems but, of course, I create some too. Sometimes at the same time.

Thanks again.
 

Mensajes Mon 22 Jul 19 @ 1:47 pm
I haved the same issue on my macbook pro, dual core i5 ssd, and it only analyzed 1 track at a time, but i have a pc at home as a back up not ssd, it does 4 tracks at the same time, this issue needs to be sorted.
 

Mensajes Wed 25 May 22 @ 5:37 pm
AdionPRO InfinityCTOMember since 2006
You'll need a cpu with more cores then if you want it to go faster :)
 

Mensajes Wed 25 May 22 @ 6:15 pm
djeddieedweards wrote :
this issue needs to be sorted.

It's not an issue that needs to be sorted.

It's something very simple:
VirtualDJ uses all available cores of your cpu -1 to analyze the tracks.
If your CPU has 2 cores, then it analyzes 1 track at the time.
If your CPU has 6 cores then it should analyze 5 tracks at the time.

In other words, as Adion said above, if you want faster analyze, you need a CPU with more cores.
 

Mensajes Thu 26 May 22 @ 9:29 am