Forum: VirtualDJ Technical Support
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Topic: Performance catastrophe...
I was loving VDJ8… its head & shoulders above anything else I’ve tried enabling real creativity and improv in the mix. I was beginning to think of going pro and getting controller when…
Horror! My beloved VDJ8.4 b5478 has suddenly become unusable. It can’t even play a single track on one deck without it warping all over the place: its slows and speeds up, then cuts out then distorts and, pops & crackles. When you chuck a tune on another deck its so painfully slow to perform the analysis: a 8 minute track takes 40 minutes. BTW Why does it always rerun the analysis when you load a song into a deck even if you’ve pre-analysed? Try mixing two tracks together …. Forget it! Its a sonic car crash!
This all seemed to happen around the time I upgraded to Catalina?
My Catalina Version is 10.15.3. This has also screwed up the iTunes playlist from being detected - I’d assumed it would read the xml version of the library file but that hasn’t changed?
MacBook Pro (Retina, 13-inch, Early 2015)
Processor: 2.9 GHz Dual-Core Intel Core i5
Memory: 8 GB 1867 MHz DDR3
Graphics: Intel Iris Graphics 6100 1536 MB
Disk: 500GB SSD upgrade from the orig. Very Fast.
Memory should be the issue on this device as I'm stuck with 8GB, but memory pressure isn't showing as a constraint.
VDJ will take 80% of the CPU but I don’t see that as exceptional.
It feels like a performance thing: as if it can’t get enough resources of some kind. So here’s what I did to try an isolate the issue:
1. Loaded only the simplest default skins.
2. Turned off all auto effects off like auto-pitch
3. Run on a brand new virgin Mac Account on its own (it was bad!)
4. Validate against alternative Music, DJ Apps. Mixvibes (yuk) is 100% fine.
5. Double checked all devices are synced on the same bit-depth rate and sampling frequency.
6. Tried different audio output including the internal speaker - all bad!
So any ideas? Are there any audio performance configs I can try tweak - latency, buffering etc
The only other thing - my main boot disk on which all my audio and the VDJ8.app and all configs and setting are stored got less than 20GB/500GB free.
Posted Sun 02 Feb 20 @ 12:39 am
If you go pro, then you really need a better machine first. 80% is way too far to be reliable. Even my old machine was always less than 10% and it ran flawlessly for 5 years of professional performances. If you can't afford a new laptop yet, start looking up ways to clean up and speed up your current one. Also, figure out what recently changed. Was there a Mac update? Did you install something new that is running in the background? Have you closed all of your other running programs?
Not sure about Mac, but in Windows, nothing likes being at the end of your drive space. If you can't swing a new laptop, then maybe you can get an external USB hard drive and then move your stored files to that. Freeing up space could possibly fix this too.
A bit of advice, performance machines are not good for use every day. Read that last statement again, seriously. All it takes is installing one thing that is not proven, or one bad web session and now your "reliable machine" is doing what you see now. Just remember, getting paid for gigs means that you take full responsibility for a reliable performance. Nobody cares what PC/Mac you have or what controller you have with skipping/distorted sound. Or worse, a crashed machine and no sound.
Posted Mon 03 Feb 20 @ 1:01 am
Otherwise, you mentioned buffer or latency setting in VDJ8 - can’t find anything obvious in option settings. Can you point me to them?
PS: CPU is now averaging to 40% you’ll be relieved the hear.
Posted Fri 07 Feb 20 @ 10:27 am
Posted Mon 10 Feb 20 @ 3:11 pm
Disk space though... that's an issue. At 20GB of free space your Mac will be struggling, so you need to do something about that asap. Run some backups (that can free up snapshot space)... run ThinLocalSnapshots (Google it... outside the scope of me replying here)... turn on iCloud and offload some photos (or back them up to a couple of external drives and delete them from your machine)... but whatever you do, DO NOT run any of those "Clean My Mac" tools, as you would not believe the amount of Macs that I get asked to repair after those have been run!!!
Posted Fri 14 Feb 20 @ 10:23 am
Posted Fri 14 Feb 20 @ 10:28 am
For very big iTunes libraries the difference on startup of virtualdj can be as much as a minute using api vs seconds loading the xml
Posted Fri 14 Feb 20 @ 10:33 am