[KERNEL][14/07] NX-Kernel v1.4.2

chasmodo · Mar 19, 2013

After compiling a kernel with ROW and ZEN schedulers I hit a small bump that I cannot explain, Neo.

What I did was:

1. copied your zen-iosched.c and row-iosched.c over into /block

2. inserted this into Kconfig.iosched

Code:

-----------------------------------snip--------------------------------------------

config IOSCHED_ROW
	tristate "ROW I/O scheduler"
	---help---
	  The ROW I/O scheduler gives priority to READ requests over the
	  WRITE requests when dispatching, without starving WRITE requests.
	  Requests are kept in priority queues. Dispatching is done in a RR
	  manner when the dispatch quantum for each queue is calculated
	  according to queue priority.
	  Most suitable for mobile devices.

config IOSCHED_ZEN
	tristate "Zen I/O scheduler"
	default y
	---help---
	  FCFS, dispatches are back-inserted, deadlines ensure fairness.
	  Should work best with devices where there is no travel delay.

choice
-----------------------------------snip--------------------------------------------

        config DEFAULT_ROW
		bool "ROW" if IOSCHED_ROW=y
		help
		  The ROW I/O scheduler gives priority to READ requests
		  over the WRITE requests when dispatching, without starving
		  WRITE requests. Requests are kept in priority queues.
		  Dispatching is done in a RR manner when the dispatch quantum
		  for each queue is defined according to queue priority.
		  Most suitable for mobile devices.

	config DEFAULT_ZEN
		bool "ZEN" if IOSCHED_ZEN=y

endchoice
-----------------------------------snip--------------------------------------------

config DEFAULT_IOSCHED
	string
	default "deadline" if DEFAULT_DEADLINE
	default "cfq" if DEFAULT_CFQ
	default "sio" if DEFAULT_SIO
	default "noop" if DEFAULT_NOOP
        default "row" if DEFAULT_ROW
	default "zen" if DEFAULT_ZEN

endmenu

endif

3. added this to Makefile

Code:

-----------------------------------snip--------------------------------------------

obj-$(CONFIG_IOSCHED_SIO)      += sio-iosched.o
obj-$(CONFIG_IOSCHED_ROW)      += row-iosched.o
obj-$(CONFIG_IOSCHED_ZEN)      += zen-iosched.o

-----------------------------------snip--------------------------------------------

Kernel compiled fine, no errors, but after flashing only ZEN appears in the scheduler menu.

What am I missing here?

giokspy · Mar 19, 2013

Απ: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

For me 100-1400 and eith undervolting work very solid. No reboots no black screen. On latest stunner and helly beam. I think no issues on 100mhz(950mV is same woth 200mhz)
Sent from my Galaxy Note

BleuZ · Mar 19, 2013

Apparently this doesn't work for the SuperNexus ROM (which is AOSP-based). Doesn't boot. Any thoughts on this?

I've tried wiping cache / dalvik. Now fixing permissions to see if that helps.

neobuddy89 · Mar 19, 2013

chasmodo said:

After compiling a kernel with ROW and ZEN schedulers I hit a small bump that I cannot explain, Neo.

What I did was:

1. copied your zen-iosched.c and row-iosched.c over into /block

2. inserted this into Kconfig.iosched

Code:

-----------------------------------snip--------------------------------------------

config IOSCHED_ROW
	tristate "ROW I/O scheduler"
	---help---
	  The ROW I/O scheduler gives priority to READ requests over the
	  WRITE requests when dispatching, without starving WRITE requests.
	  Requests are kept in priority queues. Dispatching is done in a RR
	  manner when the dispatch quantum for each queue is calculated
	  according to queue priority.
	  Most suitable for mobile devices.

config IOSCHED_ZEN
	tristate "Zen I/O scheduler"
	default y
	---help---
	  FCFS, dispatches are back-inserted, deadlines ensure fairness.
	  Should work best with devices where there is no travel delay.

choice
-----------------------------------snip--------------------------------------------

        config DEFAULT_ROW
		bool "ROW" if IOSCHED_ROW=y
		help
		  The ROW I/O scheduler gives priority to READ requests
		  over the WRITE requests when dispatching, without starving
		  WRITE requests. Requests are kept in priority queues.
		  Dispatching is done in a RR manner when the dispatch quantum
		  for each queue is defined according to queue priority.
		  Most suitable for mobile devices.

	config DEFAULT_ZEN
		bool "ZEN" if IOSCHED_ZEN=y

endchoice
-----------------------------------snip--------------------------------------------

config DEFAULT_IOSCHED
	string
	default "deadline" if DEFAULT_DEADLINE
	default "cfq" if DEFAULT_CFQ
	default "sio" if DEFAULT_SIO
	default "noop" if DEFAULT_NOOP
        default "row" if DEFAULT_ROW
	default "zen" if DEFAULT_ZEN

endmenu

endif

3. added this to Makefile

Code:

-----------------------------------snip--------------------------------------------

obj-$(CONFIG_IOSCHED_SIO)      += sio-iosched.o
obj-$(CONFIG_IOSCHED_ROW)      += row-iosched.o
obj-$(CONFIG_IOSCHED_ZEN)      += zen-iosched.o

-----------------------------------snip--------------------------------------------

Kernel compiled fine, no errors, but after flashing only ZEN appears in the scheduler menu.

What am I missing here?

IOSCHEDs are tricky.
Did you made these commits:
https://github.com/neobuddy89/andro...mmit/5f69d0717ee4bae939319382cfcd9f254e5c2dd1

If not, do it.

Gugelhupf · Mar 19, 2013

Magpir said:
I am having random reboots...on asylum kernel ....

Do you know that this thread is about DH kernel?

Cheers, Markus

AA1973 · Mar 19, 2013

AW: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

Nilscollection said:
Apparently this doesn't work for the SuperNexus ROM (which is AOSP-based). Doesn't boot. Any thoughts on this?

I've tried wiping cache / dalvik. Now fixing permissions to see if that helps.

It simply won't work. Supernexus ROM is from 19/02 and comes with old Mali support (r3p0) and may not support the newer r3p1 Mali.
Either you flash a more recent ROM with r3p1 support (compiled after 23/02), then you could use DH kernel or you flash an older kernel from chasmodo's repository with doesn't say *new Mali*.

medkintos · Mar 19, 2013

Re: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

flash DH v1.2 and yeah it's so smooth man!
and i love the network optimisation, so stable on my cellular network. i got HSPA+ instead standard HSDPA

:thumbup:

Sent from my GT-N7000 using xda app-developers app

Magpir · Mar 19, 2013

Gugelhupf said:
Do you know that this thread is about DH kernel?

Cheers, Markus

i am using DH kernel on asylum rom.

Galaxtus · Mar 19, 2013

Re: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

Magpir said:
i am using DH kernel on asylum rom.

I think we should have a FAQ specially for you.

You are that unique.

hardtheory · Mar 19, 2013

hi, neo,

i experiencing random reboot while using the phone, browsing the web for example. i'm on hyper governor, BFQ, no overclock, min CPU freq : 200 mhz. im on CM 10.1 nightly of the day. hope the new version will fix this :fingers-crossed:. thx anyway for this great kernel.

AA1973 · Mar 19, 2013

AW: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

@neobuddy89
I might be on the wrong track, but could those 2 lines in sysctl.conf be of any use?

vm.oom_kill_allocating_task = 1
vm.panic_on_oom = 1

Both are disabled by default, from what I saw in ROM Toolbox > Performance > Kernel tweaks.
I have enabled them for round about 2 hours+ now and didn't encounter any reboots anymore.
Wrong track?

hardtheory · Mar 19, 2013

@AA1973

done the trick and i had a reboot 10 min later. it seems a wrong track :crying:

AA1973 · Mar 19, 2013

AW: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

Damn....

anyway, thanks for trying :thumbup:

But for me it still works ..

Galaxtus · Mar 19, 2013

Re: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

I haven't changed anything major, only clocked at 1200 max and 200 min with Hyper and Noop

nothing is wrong here. I only use 1600 when required

neobuddy89 · Mar 19, 2013

hardtheory said:
hi, neo,

i experiencing random reboot while using the phone, browsing the web for example. i'm on hyper governor, BFQ, no overclock, min CPU freq : 200 mhz. im on CM 10.1 nightly of the day. hope the new version will fix this :fingers-crossed:. thx anyway for this great kernel.

I am still recoding cpufreq.
However, as I see random reboot reported only on Asylum CM ? is it?
If yes, are any init.d tweak or build.prop tweak installed? they may be causing dispute/mismatch with kernel settings.

fifi570 · Mar 19, 2013

Re: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

neobuddy89 said:
I am still recoding cpufreq.
However, as I see random reboot reported only on Asylum CM ? is it?
If yes, are any init.d tweak or build.prop tweak installed? they may be causing dispute/mismatch with kernel settings.

Me too with PA 3+

... With smartass v2 when i plug to my PC ...

Envoyé depuis mon GT-N7000 avec Tapatalk

hardtheory · Mar 19, 2013

hi neo,im on cm nightly of 19/03.nothing else installed.

thx for your work.

Galaxtus · Mar 19, 2013

Re: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

No reboot here. Running A certain cowrom here

hellborne · Mar 19, 2013

Απ: [KERNEL][3.0.69][4.2.2 - CM/PA/AOKP] DH-Kernel v1.2 [18/03][LINARO Kernel is here

I had a reboot today.. first time after 3 days of use... I'm using asylum 18/3
1200-200mhz
smartassv2 and bfq..
Keep up the good work my friend.. dh is so close to perfection.. :thumbup:
Στάλθηκε από το GT-N7000 μου

hardtheory · Mar 19, 2013

change max freq to 1200 instead of 1400. no reboot in 2 hour.

keep up the good work.

[KERNEL][14/07] NX-Kernel v1.4.2

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