Author Topic: Usb Bluetooth Cpu Usage (Read 4127 times)

deadite66 · « **on:** January 15, 2007, 10:18:19 am »

running cacko 1.23 on a C3200

is it usual for a usb bluetooth dongle to max out the cpu?, its maxed out even on turbo.

is CF BT adaptor any different?

Quote

hci_usb
Speed: 12Mb/s (full)
USB Version: 1.10
Device Class: e0(unk. )
Device Subclass: 01
Device Protocol: 01
Maximum Default Endpoint Size: 64
Number of Configurations: 1
Vendor Id: Belkin Components (0x50d)
Product Id: (0x84)
Revision Number: 5.25

stupkid · « **Reply #1 on:** January 17, 2007, 09:54:17 am »

I use socket bluetooth CF cards and web browse over GPRS quite often. I've never seen this issue on any of my devices. I'll be getting a C3200 soon. I can test out a USB bluetooth dongle and see CPU usage.

Jon_J · « **Reply #2 on:** January 17, 2007, 12:10:56 pm »

For what it's worth, here's a screenshot of CPU usage as I plug in my Kensington EDR Bluetooth dongle.
First 2 screenshots are for the Kensington EDR Bluetooth dongle.
It maxes the application CPU, which then drops. Then maxes the system CPU and stays maxed.
I have a Socket Bluetooth (rev K) CF card also.
The 3rd screenshot shows the CPU in sysinfo as I plug in the Socket Bluetooth card.
EDIT: The CPU usage for the Socket card is quite a lot lower than the above USB dongle.

ldrolez · « **Reply #3 on:** January 17, 2007, 12:51:30 pm »

Hi !
I use everyday an Ovislink BT usb dongle, and I have no CPU usage problems. The CPU is at 100% during 20 seconds when I plug the dongle but it's because of the buggy hotplug scripts (I've done a quick hack to reduce this down to 5 seconds). Moreover the dongle current consomption is very low.
Cheers,
Ludo.

deadite66 · « **Reply #4 on:** January 17, 2007, 03:00:23 pm »

on shot 2 the cpu usage dropped off when i was doing something else otherwise it would be the same as shot 1.
could it be a bluez problem?

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Author Topic: Usb Bluetooth Cpu Usage (Read 4127 times)