Re: NEON power consumption

2010-11-30 Thread Rob Herring
On 11/30/2010 03:41 AM, Dave Martin wrote: Hi, On Mon, Nov 29, 2010 at 8:45 PM, Michael Hope wrote: On Tue, Nov 30, 2010 at 12:37 AM, Dave Martin wrote: On Sun, Nov 28, 2010 at 10:28 PM, Michael Hope wrote: I sat down and measured the power consumption of the NEON unit on an OMAP3. Method

RE: NEON power consumption

2010-11-30 Thread Woodruff, Richard
> From: linaro-dev-boun...@lists.linaro.org [mailto:linaro-dev- > boun...@lists.linaro.org] On Behalf Of Dave Martin > Sent: Tuesday, November 30, 2010 3:41 AM > > * VFP uses the same register set. Does a floating point > instruction > > also turn the NEON coprocessor on? > > Yes-- these are one

Re: NEON power consumption

2010-11-30 Thread Dave Martin
Hi, On Mon, Nov 29, 2010 at 8:45 PM, Michael Hope wrote: > On Tue, Nov 30, 2010 at 12:37 AM, Dave Martin wrote: >> On Sun, Nov 28, 2010 at 10:28 PM, Michael Hope >> wrote: >>> I sat down and measured the power consumption of the NEON unit on an >>> OMAP3.  Method and results are here: >>>  htt

Re: NEON power consumption

2010-11-30 Thread Vishwanath Sripathy
Dave, On Tue, Nov 30, 2010 at 2:15 AM, Michael Hope wrote: > On Tue, Nov 30, 2010 at 12:37 AM, Dave Martin wrote: >> On Sun, Nov 28, 2010 at 10:28 PM, Michael Hope >> wrote: >>> I sat down and measured the power consumption of the NEON unit on an >>> OMAP3.  Method and results are here: >>>  h

Re: NEON power consumption

2010-11-29 Thread Michael Hope
On Tue, Nov 30, 2010 at 12:37 AM, Dave Martin wrote: > On Sun, Nov 28, 2010 at 10:28 PM, Michael Hope > wrote: >> I sat down and measured the power consumption of the NEON unit on an >> OMAP3.  Method and results are here: >>  https://wiki.linaro.org/MichaelHope/Sandbox/NEONPower >> >> The board

Re: NEON power consumption

2010-11-29 Thread Dave Martin
On Sun, Nov 28, 2010 at 10:28 PM, Michael Hope wrote: > I sat down and measured the power consumption of the NEON unit on an > OMAP3.  Method and results are here: >  https://wiki.linaro.org/MichaelHope/Sandbox/NEONPower > > The board takes 2.37 W and the NEON unit adds an extra 120 mW. > Assuming

Re: NEON power consumption

2010-11-28 Thread Michael Hope
On Mon, Nov 29, 2010 at 6:36 PM, Amit Kucheria wrote: > On Mon, Nov 29, 2010 at 3:58 AM, Michael Hope > wrote: >> >> I sat down and measured the power consumption of the NEON unit on an >> OMAP3.  Method and results are here: >>  https://wiki.linaro.org/MichaelHope/Sandbox/NEONPower >> >> The boa

Re: NEON power consumption

2010-11-28 Thread Amit Kucheria
On Mon, Nov 29, 2010 at 3:58 AM, Michael Hope wrote: > I sat down and measured the power consumption of the NEON unit on an > OMAP3. Method and results are here: > https://wiki.linaro.org/MichaelHope/Sandbox/NEONPower > > The board takes 2.37 W and the NEON unit adds an extra 120 mW. > Assuming