Kernel 3.9.0 with F2FS and BFQ

[moonman]

Sounds good. I will add it asap under linux-raspberrypi-latest name

[kmihelich]

moonman: I saw you added the kernel, though last time there was an accompanying new version of the firmware as well.. is that not the case this time? Just want to be sure you have all the pieces.

[moonman]

There shouldn't be any problems running this kernel with raspberrypi-firmware package. Raspberrypi-firmware pulls it from git so it is the latest anyway.

[pepedog]

As far as I can detect there is only one firmware at this time

[crashmaster]

Great to see it in core repo now - thanks guys!
I have some special apps running 24/7 using gpios, i2c, w1 and everything works reliable.
I was surprised RPi switches power off now a few seconds after shutdown (using kernel 3.9.1) - that's nice.

EDIT:
A correction:
Hardware power off is done only if RPi gets current from one of my powerpacks. I'm wondering but it seems the powerpack switches off if too low current is flowing. Never saw this effect before.

[pepedog]

It must be low current, don't think hardware is capable of complete off

[CrawX]

I've tried the new kernel (linux-raspberrypi-latest) with f2fs and bfq and it starts noticeably faster!
Also the UI response seems a bit better so this is really nice!

Sadly though, the h264-performance is way worse. Videos that play using the stable kernel stutter using the newer one (Everything tested in xbmc, videos are on a kernel-space mounted nfs share using big buffers and udp)
I've yet to try it using just the newer kernel without f2fs/bfq and I'll report back if the results are different.

Greets and thanks for this really nice distribution on yet another one of my devices!
CruX

[moonman]

f2fs is just a filesystem, if you don't have your sd formatted f2fs, it isn't used.
same goes for BFQ: the default distribution scheduler is noop, and it set in /boot/cmdline.txt, but this kernel gives you the ability to set bfq which is not a part of the mainline code.

Strangely I have to problem playing 1080p h264 mkvs with this kernel and xbmc-rbp-git over samba.

$this->bbcode_second_pass_quote('moonman', 'f')2fs is just a filesystem, if you don't have your sd formatted f2fs, it isn't used.
same goes for BFQ: the default distribution scheduler is noop, and it set in /boot/cmdline.txt, but this kernel gives you the ability to set bfq which is not a part of the mainline code..

[kmihelich]

There is some level of DT support coming for it in 3.10 in multi-platform. I haven't checked to see exactly how much has been merged as far as hardware support, but I wouldn't imagine everything is there.