This issue is related with this thread.
I've just updated the kernel to Code_Blue Kernel on Nexus 5 Android L DP, currently it runs very well. It is the last version of kernel (MD5 is A018072A97AE020CD2C6365D2B7A8912) thanks to @eng.stk
My cpu setup looks like 300 to 1500 cpu frequencies and interactive with fiops. I didn't change any other setting.
I really feel lags when i touch screen or doing touch intensive things like turning a pdf documents page quickly. An here reboots come, when i check logcat i see those errors "touch boost failed" and if i didn't force stop log cat application it reboots immediately, if i force stop it, reboots again but later.
***At this point i figured it out but i don't want to waste all lines above and i believe that someone who suffer from this issue can find the way by this post, so i continue to write for solution. Because i find a lot of usefull informations here on XDA, payback
According to @franciscofranco here and here
Its not an issue at all, its just trying to write 1 to touch_boost, but since the touch_boost param is not available it can't write - its part of Google's PowerHal... since they haven't released sources for that - yet - theres no way I can remove that log useless spam.
Dont worry about that, its just the powerhal trying to write something to the touch_boost entry on mpdecision binary.
Could this log entry in any way produce some lags, when the log gets bigger ?
Ok, i had to change governer settings and mainly two things, boost and boost pulse duration, you would see the pictures below and settings how i set it up.
If you don't see picture and apps interfaces, you may want to set
boost -> 652
boost-pulse duration -> 300000