Show us your DPC Latency
Hello,
I just wanted to start a thread were everyone can/should post his/her DPC latency and his Hardware setup. For Windows just download this program:
http://www.thesycon.de/deu/latency_check.shtml
and start it.
Here are my results:
LENOVO Thinkpad R500 NP7BHGE
Intel Core2Duo P8700
4GB RAM
Every unwanted HW device is disabled
Windows 7 Pro 64 bit (fresh installation)
DPC Latency ~ 140µs
Show me yours…
regards,
engel
Mac = no DPC Latency
sorry, had to 
hahah. i mean, if there were, shouldn’t there be a program to analyze it? 
true 
Mines not too bad actually. traktor, audition, firefox, avast, peerblock all going and sitting around 180.
i spiked to 3000 a couple of times over 5 mins on idle… 
It’s that bad.
holy crap dude. good luck sorting that mess out eh!
Yea, it was from my Toshiba Laptop, only two months old. Spent days with NI Support trying to fix the damn thing. I got it to do djin and other things. Thou, I do think that W7 is the main cause of it. I’m looking to re-install XP 64b and see if that changes anything.
But, I just decided to stick with my old Compaq. Since I’ve basically iron’d things out with it. I just wish I could find a 2.5 500g hard drive that isn’t SATA so I’d have more room than the 320 I have in it now.
My dell spiked badly every so many seconds, causing crackles and pops, it was appauling.
I got fed up of re-installing xp every 2 weeks so I whent and got a MBP after many hours of overtime in work.
This is why it pays to do research on the DPC latency of a PC before you buy it !
tbh i’ve never noticed anything ‘lag-wise’ when running traktor, so not sure what to read into my result…
What laptop are you using. Your DPC latency looks the same as my friend who had a dell laptop.
What happened with him was that he had sudden drops with midi controller and timecodes
acer aspire 5315 (budget POS tbh) up’d it’s ram from 1 to 2gb, switched vista for 7, created a dual boot for traktor (also win7) and stripped it right back to basically just windows and traktor.
used to get the odd dropout when getting too heavy with the vci, but that was with T3 in a ‘dedicated’ user where i had applied the ‘shell tweak’ (switched explorer for traktor), but still had the same services/devices enabled as normal user. used that game booster program to knock some services out when in that user.
but since the dual boot it’s been fine with no problems (been a couple of months now)
I’m pretty amazed. My 4 year old HP with 1.6GHz processing and 1gig of ram is rolling nice in the 200 range. Doesn’t even spike past 800. And that’s with all normal Vista processes running.
I must be fluking this and got the ultimate DJ budget laptop! I got a 4/5 year old Dell Inspiron 1520 with a Intel Celeron CPU 1.86GHz processon, 2GB RAM and 80GB hard drive.
My test done just now, letting it run for about 10 minutes had the results of:
Absolute maximum: 169us
Not sure what that means, but seems like it’s quite according to what others are saying. The graph is also staying at the very bottom of the green strip without any random peaks.
Is that good for Traktor Pro, Audio2DJ and VCI100? Not sure what the results mean!?
It IS good. You should have a glitch free traktor experience even with low sound latencies.
hey guys im in the middle of preparing a backup laptop in case my macbook white fails
i installed windows 7 ultimate (32bit) on an ASUS F5GL (2.16 GHZ dual core, 4GB Ram, 250GB HD) and so far everything is awesomely zippy and smooth (gotta love windows seven!!!)
i run DPC Latency and it sits at around 130-140 up (Green area - very low - traktor running at the same time and no dropouts/audio glitches whatsoever running at 2.5ms with audio4dj)
however, once in awhile, i would get one odd bar of RED Spike , this happens very randomly, and i somehow couldnt reproduce this (tried everything, full screen, non full screen, effects all on/off, loops all on/off, all decks playing etc) but when im not trying, once in awhile i would get a single red bar on DPC latency! (like its totally random)
is this acceptable?? or a STRAIGHT - green would be the way to go? Is one or two red bar every few minutes bad enough to try to tweak settings etc (wifi and bluetooth is always disabled)
A straight, flattish green line is preferred. You may not get them often, but at 2.5ms audio latency, these red bars WILL create glitches. It is possible you can’t completely get rid of them, but it’s worth trying, if only to get them to a lower level.
Go back to your device manager and disable a few more things : ie, on my HP I noticed the internal soundcard and the firewire interface created some of my spikes (never above 1000µs) and disabling these devices decreased the number of spikes.
Don’t disable everything you see though, and specifically avoid touching computer/system peripherals/storage controllers.
Then, go through the services console, find which services aren’t useful in your environment (you can find many guides on which does what on the net) then disable them / switch to manual startup. This removed a few extra spikes and brought down the average from ~140 to ~70 µs.
Of course, I assume you’ve also switched to the maximum power plan (on external power!), removed unnecessary startup entries in msconfig and prioritized background services over apps.
I just wanted to share my experience with my dell studio 1737 … bought and tracked down the problems to dpc latency.
Ended up installing an XP partition strictly for traktor and found a work-around by disabling a process with a program called “process XP”
here’s the link that helped me:
http://www.native-instruments.com/forum/showthread.php?t=82401
at this point i’m looking to just suck it up and get a macbook pro and be done with it. Shitty part is i’m going to spend extra money for video cards I dont even use.