i open this thread to provide infos and get reports about new OpenELEC testbuilds.
http://sources.openelec.tv/tmp/image/op ... 93.tar.bz2
to update a older build without reinstalling: http://wiki.openelec.tv/index.php?title ... g_OpenELEC
I have created a new build to test a more actual kernel based on bootc's work. He wants to get reports how well this kernel works for the "masses", what are the problems and if it runs stable. This kernel is based on the active developed kernel "linux-3.2.18".
After some tests here with this kernel i have noticed this kernel provides us a much better data transferrate from SDcards. for example:
- Kernel 3.1.10 (original):
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root ~ # sync; rm testing; sync; time ( dd if=/dev/zero of=testing bs=16k count=10000; sync)
10000+0 records in
10000+0 records out
163840000 bytes (156.3MB) copied, 38.149376 seconds, 4.1MB/s
real 0m39.139s
user 0m0.060s
sys 0m3.420s
- Kernel 3.2.18 (new):
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root ~ # sync; rm testing; sync; time ( dd if=/dev/zero of=testing bs=16k count=10000; sync)
10000+0 records in
10000+0 records out
163840000 bytes (156.3MB) copied, 21.412055 seconds, 7.3MB/s
real 0m23.431s
user 0m0.060s
sys 0m3.440s
as you see, writing on the SDcard is around 2 times faster (at least here for me).
If you test this build via shh for mmc errors and slowdowns while booting with (OpenELEC provides Timestamps for every line)
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dmesg
you maybe will also notice a faster startup from kernel and certain services like:
- End of kernel start:
Kernel 3.1.10:- Code: Select all
[ 2.913671] Freeing init memory: 3728K
Kernel 3.2.18:- Code: Select all
[ 1.095703] Freeing init memory: 3740K
(this means (here) the kernel starts in 1s sec instead 3 sec.)
- or starting of service "udev"
Kernel 3.1.10:- Code: Select all
>[ 6.948481] udevd[717]: starting version 184
Kernel 3.2.18:- Code: Select all
>[ 3.620709] udevd[736]: starting version 184
(another 3.3 sec improvenment here)
- or beginning to start XBMC:
Kernel 3.1.10:- Code: Select all
[ 9.901918] Console: switching to colour dummy device 80x30
Kernel 3.2.18:- Code: Select all
[ 6.121219] Console: switching to colour dummy device 80x30
(what i should say?)
Additionally we have updated XBMC on the latest code with merges from XBMC-master and changes made by Gimli:
- The wrong thumbnail colors should be fixed
- there are much changes in in the XBMC which needs to resetup your audio hardware, it is important to remove your "guisettings.xml" before if you upgrade from a earlyer build, reboot and resetup your audio device:
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rm -rf /storage/.xbmc/userdata/guisettings.xml
- i have tried a WLAN stick with this build based on the "r8712u" wlan driver which work very well here (but is not fast enough to stream 1080p movies over samba)
- mounting external USB drives works here too
many thanks to Gimli and bootc for the great work.
let me know how it works for you
Stephan
