[android-kernel] Re: Real time kernel support in Android

2009-10-19 Thread XingChao Wang
2009/10/16 Bateman <7thharmo...@gmail.com>: > > Real Time is NOT about making things "quicker". Its about reliability. > Its about providing guarantees that certain events will happen within > a particular time deadline no matter how the rest of the system is > behaving. For example, lets say ther

[android-kernel] Re: Real time kernel support in Android

2009-10-19 Thread XingChao Wang
2009/10/9 gulshan karmani : > Yes, I agree with Greg, as 2.6 kernel versions are all Pre-emptible which > makes it close to real time, is'nt it ? I once enable kernel preempt feature,change cfs to real time schedule class, i found the UI become freeze easily. --wxc200 > Any performance tools will

[android-kernel] RPC operation in Interrupt context

2009-07-08 Thread XingChao Wang
Hi all, We take android-msm-2.6.29 of git://codeaurora.org/kernel/msm as work-base. RPC part added client-server mode one month ago. can anyone give a description about rpc client-server operation in interrupt context? thanks Br Wang Xingchao --~--~-~--~~~---~--~

[android-kernel] Re: How much RAM does G1 have?

2009-07-08 Thread XingChao Wang
2009/7/9 tom : > > yes, kernel need to reserve some for its text, data, mem_map, and > other like FB etc. > > But, 192-101=91MB, does modem need 91MB?! > We argue HTC ram usage once.It's really hard to know ram detail layout. --wxc200 > > On Jul 9, 1:09 pm, wxc200 wrote: >> On Jul 9, 11:51 am, D