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Burakov_Anatoly
Jam Meister
Joined: 01 Sep 2009
Posts: 56
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 Posted: Mon Aug 11, 2014 2:04 pm Post subject: 3.6: Huge CPU spikes in REAPER |
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I'm running a project with moderate amounts of processing (around 15% CPU usage on i7-3770K). Sometimes Jamstix goes crazy its CPU usage jumps from the usual 0.4% to like 30-40%, and all audio processing slows to a crawl (while total CPU usage goes down to 8%, odd).
This is a screenshot from REAPER's CPU monitor when one of these CPU spikes happen:
If i disable parts of my project (i.e. disable lots of processing), things go back to normal. Didn't happen with earlier versions. |
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Azimuth
Moderator & Beta Team
Joined: 19 Nov 2010
Posts: 2131
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Ralph [RZ]
Site Admin
Joined: 02 Jan 2008
Posts: 13332
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| Posted: Wed Aug 13, 2014 1:29 pm Post subject: |
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Adding this line to \Documents\Jamstix3\jamstix3.ini should fix this:
PriorityMode=1
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Ralph Zeuner
Rayzoon Technologies LLC
http://www.rayzoon.com |
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Burakov_Anatoly
Jam Meister
Joined: 01 Sep 2009
Posts: 56
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| Posted: Tue Oct 07, 2014 6:08 am Post subject: |
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| Ralph [RZ] wrote: | Adding this line to \Documents\Jamstix3\jamstix3.ini should fix this:
PriorityMode=1 |
it helps a bit but the spikes still happen. |
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Ralph [RZ]
Site Admin
Joined: 02 Jan 2008
Posts: 13332
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| Posted: Tue Oct 07, 2014 2:30 pm Post subject: |
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Try adding this line as well:
ThreadMode=777
If that still doesn't fix it, please email me rzdlog.txt and jamstix3.ini from Documents\Jamstix3.
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Ralph Zeuner
Rayzoon Technologies LLC
http://www.rayzoon.com |
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darkcloud_2973
Junior Jammer
Joined: 07 Jul 2014
Posts: 12
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| Posted: Thu Oct 30, 2014 8:53 am Post subject: |
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Funny enough, I just came here looking to post about this very issue. Oddly, most of my spikes happen after I hit stop. I rarely have trouble playing anything but upon stopping playback, the reverb tails and any delays I have still bouncing around from vsti's start breaking up terribly. I'm not sure if it's related, but I never saw this problem until I upgraded my computer recently. My old rig was a AMD Phenom x4 with a firewire port built into the motherboard. I upgraded to an i5 rig with a firewire pcie card and now it's became a regular occurance.
I'll try adding the lines to the ini file and see what happens.
Edit: Additional Info
I have TurboBoost turned off in the BIOS
I switch the power management to performance in Windows to performance to stop processor throttling . |
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Ralph [RZ]
Site Admin
Joined: 02 Jan 2008
Posts: 13332
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| Posted: Thu Oct 30, 2014 2:28 pm Post subject: |
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Darkcloud, let me know if it does not fix it.
_________________
Ralph Zeuner
Rayzoon Technologies LLC
http://www.rayzoon.com |
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darkcloud_2973
Junior Jammer
Joined: 07 Jul 2014
Posts: 12
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| Posted: Thu Oct 30, 2014 2:36 pm Post subject: |
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| I've been testing it out for the last hour or so and so far the problem seems to have been solved. I'm just curious as to why it didn't pop up until after my computer upgrade. Is it related to a difference in the Intel vs AMD architecture or maybe related to the different firewire port? Or maybe it was just a fluke it started after that. |
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