[KERNEL] BFS Scheduler for Mik CM7 | RELEASED

[DookMatt]

I downloaded mik kernel from his git repo and I patched it to add BFS Scheduler (0.404 patch works very well) and to set smartass governor to default.

I use it on CM7 Beta 6.5.2 and it works!

DOWNLOAD: http://www.multiupload.com/917W030Y00

EDIT: ZIP file is unsigned!

 

[eagledipesh]

What is BFS scheduler used for and how does that help CM7 6.5.2 apart from setting default governor, Waiting for the patch, Thanks.

 

[cmangalos]

bfs - performance wise
cfs - multi tasking wise

i hope tun.ko from mik' s rom can be on this kernel since the tun.ko on mik's,rom is not updated, openvpn is not working, and i need it badly

Sent from my LG-P500 using Tapatalk

 

[mik_os]

I didn't used BFS because of strange perfomance issues in GB. If this one is ok I maybe try to use it.

About tun.ko: in 6.5.2 it has been built directly in kernel, but I don't have openvpn to test it.

 

[Aldeirid]

I didn't used BFS because if strange perdomance issues in GB. If this one is ok I maybe try to use it.

Yeah there was an issue with dynticks and low CONFIG_HZ (phones were affected since they shouldn't really go above 100); it should have been fixed in bfs 404 I've been using it since your 6.5.2 release and no issues have arose (and no groundbreaking performance improvements either).

@cmangalos: actually, CFS is the default kernel scheduler, and is therefore supposed to be very scalable (i.e. works well enough on machines ranging from 1 to thousands of (logical) cpus), while BFS uses a different approach which privileges user interaction and minimizes latency (hence *theorically* improving system responsiveness), at the cost of lower throughput.

for anyone interesting here's an enlightening read: http://www.cs.unm.edu/~eschulte/data/bfs-v-cfs_groves-knockel-schulte.pdf

A.

 

[franciscofranco]

Indeed! I've tried with higher CONFIG_HZ but nothing good came off it, but in my desktop HZ as 1000 is a good boost.

 

[DookMatt]

I didn't used BFS because if strange perdomance issues in GB. If this one is ok I maybe try to use it.

About tun.ko: in 6.5.2 it has been built directly in kernel, but I don't have openvpn to test it.

With 0.404 there aren't bugs... if you want, you can release a new version with CFS and a version with BFS... or maybe you can release flash zip kernel! Or maybe i can do it for you!

 

[cmangalos]

I didn't used BFS because if strange perdomance issues in GB. If this one is ok I maybe try to use it.

About tun.ko: in 6.5.2 it has been built directly in kernel, but I don't have openvpn to test it.

im always using openvpn, and when i started to use cm7 roms, tun.kos are always not compatible with the kernel, if you want mik, i can give you servers, username and pw, and use openvpn setting app found in market

Sent from my LG-P500 using Tapatalk

 

[dongimin2]

I downloaded mik kernel from his git repo and I patched it to add BFS Scheduler (0.404 patch works very well) and to set smartass governor to default.

I use it on CM7 Beta 6.5.2 and it works!

DOWNLOAD: http://www.multiupload.com/917W030Y00

EDIT: ZIP file is unsigned!

if its unsigned, do i need to sign it before flashing?
if yes, how?

 

[josinpaul]

if its unsigned, do i need to sign it before flashing?
if yes, how?

no you dont need to. but you will have to uncheck the option "toggle verify signature" in the recovery. thats all

 

[4silvertooth]

Works great can't test wifi right now but everything else works, good benchmark scores (not very high Oc 245/768 performance kp beyond that ). Testing it further.

Sent from my LG-P500 using XDA Premium App

 

[kovidd]

Do I have to wipe something before flashing?

 

[4silvertooth]

Do I have to wipe something before flashing?

Not necessary .. but you can wipe dalvic cache.

Sent from my LG-P500 using XDA Premium App

 

[gkalen]

i wonder if its working with open optimus rom v1.148?????????

 

[andy572]

i wonder if its working with open optimus rom v1.148?????????

before you wonder, read some posts/threads about the optimus series and kernel variants

 

[Zerobarat1]

Even though BFS has nice loading times and boot times , it sucks in video playback . Just tested it and it shocked me at how many times it would stutter

 

[andy572]

Even though BFS has nice loading times and boot times , it sucks in video playback . Just tested it and it shocked me at how many times it would stutter

stutter must not be come with the bfs ... it can have more reasons i think.

 

[4silvertooth]

Even though BFS has nice loading times and boot times , it sucks in video playback . Just tested it and it shocked me at how many times it would stutter

I don't get any stutter its all butter smooth. Will test further though.

Sent from my LG-P500 using XDA Premium App

 

[heiszakee]

@DookMatt, is it possible to create a kernel that enable blink like void?

 

[DookMatt]

@DookMatt, is it possible to create a kernel that enable blink like void?

blink is an app. "Missed message flasher free"