Is anyone else having occasional cpu spikes on Windows?

[ark]

I would like to know whether anyone else has the following symptoms:

• After Live has been running a while, audio becomes choppy and then the cpu meter rises above 100%
• During cpu spike, task manager shows significant cpu taken by the Ableton Index process, even though nothing has changed lately that would require reindexing
• Disconnecting Push 2 makes the cpu meter return to normal after a few seconds
• Problem occurs on one computer but not another
• Ableton suggested updating to the latest graphics driver, which made the problem less frequent but did not eliminate it
• Problem becomes less frequent when the computer is connected to a port replicator, but does not go away completely

Needless to say, this situation has made Push useless for live performance, so I am eager to find a solution.

[jestermgee]

Might actually help to post your system specs of both machines in a case like this.

No spike issues as you describe that I have noticed. For reference:

OS: Win10
CPU: i7-4820k 4.2Mhz
RAM: 16GB GAM
SSD: 2 x 512GB SSD
GPU: GTX1080
PSU: 1000W Corsair PSU
AUDIO: Roland OctaCapture
LIVE: Live 10.0.1 + Beta

[ark]

OK...

The machine where I'm getting CPU spikes:

OS: Win7 x64
CPU: i7-2820QM 2.3GHz
RAM: 32GB
SSD: 512GB
GPU: NVIDIA Quadro 3000M
Audio: Native Instruments Komplete Audio 6
Live: 10.0.1 + Beta

The machine with no CPU spikes:

OS: Win7 x64
CPU: E5-1650 v3 3.5 GHz
RAM: 32GB
SSD: 512GB
GPU: NVIDIA Quadro K2200
Audio: Roland Octa-Capture
Live: 10.0.1 + Beta

I am quite confident that the problem is not a genuine cpu overload, because I can reproduce the problem on a Live set with a single MIDI track with no instruments on it, playing a single, trivially simple clip.

[Mark Williams]

My guess is there is a task running in the background on one of the machines causing a spike, i.e virus scanner/cortana/index searcher etc.

[yur2die4]

Do you have your power profile in Windows set to keep your cpu running at max settings?

[ark]

Do you have your power profile in Windows set to keep your cpu running at max settings?

Yes.