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Re: Guaranteed CPU shares? [message #37014 is a reply to message #37010]

Tue, 11 August 2009 21:25

laotse
Messages: 35
Registered: December 2008

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spikeinin wrote on Tue, 11 August 2009 13:53

The net CPU load would be transcoding VoIP to ulaw? The VoIP traffic runs from the phone through eth0 into the veth of the VE into Asterisk. So how is it?

The node is a 3 GHz Quad-Core. The transcoding ran smoothly on my old 800 MHz System using a passive ISDN card, i.e. the CPU had to deal with building the S0 waveforms, too. So transcoding should not even claim a single core.

Spend another core for VE0 and the idling containers and yet another one for the kvm, which should be overkill in all cases (the average load of the machine is virtually 0). And yet there's still one spare core.

Giving it another thought, the issue may also be caused by a lack of memory bandwidth. But this is just cheap guessing.

So my question is: Is there a systematic method, to find out, where the bottleneck occurs?

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[Message index]

		Guaranteed CPU shares? By: laotse on Mon, 27 July 2009 13:05
		Re: Guaranteed CPU shares? By: spikeinin on Tue, 11 August 2009 11:53
		Re: Guaranteed CPU shares? By: laotse on Tue, 11 August 2009 21:25
		Re: Guaranteed CPU shares? By: maratrus on Thu, 13 August 2009 07:37
		Re: Guaranteed CPU shares? By: laotse on Mon, 17 August 2009 08:26

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