v18 LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Printable Version +- Kodi Community Forum (https://forum.kodi.tv) +-- Forum: Support (https://forum.kodi.tv/forumdisplay.php?fid=33) +--- Forum: General Support (https://forum.kodi.tv/forumdisplay.php?fid=111) +---- Forum: Raspberry Pi (https://forum.kodi.tv/forumdisplay.php?fid=166) +---- Thread: v18 LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) (/showthread.php?tid=298461) Pages:
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RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Milhouse - 2018-01-26 Last throw of the dice for OSD-troubled users, build #0125d: RPi2 This is the same as #0125 (back to 4.14.15) but does not include PR13433 and PR13435 (as the latter now has a dependency on PR13433). RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - HiassofT - 2018-01-26 Build 0125d is fine, action is OSD again: Code: 19:29:28.477 T:1941877760 DEBUG: LIRC: Update - NEW at 25460:160 0 KEY_OK devinput (KEY_OK) Thanks a lot for the testbuilds! so long, Hias RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - bleep42 - 2018-01-26 (2018-01-26, 14:35)popcornmix Wrote:Hi Popcornmix,(2018-01-26, 02:43)Milhouse Wrote: To me this looks more like #0805 than #0804, but it's hard to say if #0806 is worse than #0805 - I'd probably say they're much the same, and that the problem starts with - or is made worse (a small leak becoming a much bigger leak) by - #0805. Looks like Milhouse beat me to it, so for what it's worth, here are the results from #0806, I've only got top to give me the memory usage accurately. screen snaps in the drop box folder. https://www.dropbox.com/sh/fc4chc5irjnalbu/AACKNVFIUHboS0oRPI2is3qUa?dl=0 B4Start.png is before I do anything, after a reboot. I then played the video in a repeat. Free memory at start of first play was 263MB by end 204MB Free memory at start of second play was 194MB by end 201MB Free memory at start of third play was 157MB by end 113MB Free memory at start of fourth play was 94MB by end 49MB Free memory at start of fifth play was 86MB by end 47MB End5thplay265.png is recorded just before the end of the 5th play of Elysium, so same as above at 47MB. I then rebooted so everything was back to as it was in B4Start.png I then played the first 5 seconds of the video and stopped, 1x5sec265.png then again 2x5sec265.png, then twice more, 5x5sec265.png then another 5 times 10x5sec265.png as you can see, by the end of the 10th play there is 90MB free, not good, but more than playing the whole video 10 times, which would not be possible, as it locks up after 6 or 7 plays. Regards, Kevin LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - ksooo - 2018-01-26 (2018-01-26, 21:30)HiassofT Wrote: Build 0125d is fine, action is OSD again: Could you please leave a comment in the affected PRs to give @xhaggi a headsup? RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Milhouse - 2018-01-26 (2018-01-26, 21:35)ksooo Wrote: Could you please leave a comment in the affected PRs to give @xhaggi a headsup? Done: github And many thanks @HiassofT! RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Milhouse - 2018-01-26 (2018-01-26, 21:31)bleep42 Wrote: Looks like Milhouse beat me to it, so for what it's worth, here are the results from #0806, I've only got top to give me the memory usage accurately. bcmstat.sh is included as standard in my RPi/RPi2 builds. texturecache.py is also included too (including Generic). Just in case anyone finds them useful.I'm not saying bcmstat.sh -DAZ memory monitoring is more accurate than any other tool, but it does track GPU/RAM consumption for the whole system (and if pretty much all you're running is kodi then it makes life easier). If all you see are red allocations (and few if any green free's) then there's a good chance there's a leak.
RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - bleep42 - 2018-01-26 Ok thanks Milhouse, I'll give that a go in future. :-) Regards, Kevin. RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Milhouse - 2018-01-26 I've rebuilt LE master/Kodi master with gcc-6.2.0 and glibc-2.25 and the results initially look similar to #0804, with reduced leakage compared with #0805.The following image shows the end of the 2nd and 3rd play of Elysium: where there is a deficit of 47MB after the second play, which falls to 23MB after the 3rd play. After 5 full plays of Elysium the deficit is still only 64MB However after a 6th play, the deficit increased to 108MB. But after a 7th play, it reduced to 78MB. This is more like #0804 than #0805 - there is a small leak, but it's not as significant as I saw with #0805. But it's weird, as the gcc/glibc changes are in #0806, and #0805 showed a significant deficit after each play (even though it also used gcc-6.2.0), so I'm not sure why switching back to gcc-6.2.0/glibc-2.25 would restore the significant losses seen with #0805. Or it's another red herring, and the issue is just with #0805. That said, I have just tested a master build which is using gcc-7.3.0 and the deficit increased rapidly - first play 94MB, second play 181MB - so perhaps there is a gcc-7.x bug that is causing this increased level of leakage. I can upload these gcc-6.2.0/gcc-7.3.0 test builds if this will be useful. RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - popcornmix - 2018-01-26 This is feeling a bit like the music database memory leak we had before in kodi (worked around with MALLOC_MMAP_THRESHOLD_). It may not be an actual leak, but glibc's malloc heap can get fragmented with certain patterns of allocs/frees. It feels a bit like the hevc update changed the sizes of some buffers that made things a little worse. An updated glibc made things a lot worse. Are you able to run with smaller settings of MALLOC_MMAP_THRESHOLD_ ? Is LE currently using MALLOC_MMAP_THRESHOLD_=131072? (That is value kodi chose). Can you try with, say, MALLOC_MMAP_THRESHOLD_=32768 RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - HiassofT - 2018-01-26 (2018-01-26, 23:32)popcornmix Wrote: Is LE currently using MALLOC_MMAP_THRESHOLD_=131072? (That is value kodi chose).Hmmm, interesting. I don't see this defined in kodi's environment: Code: xbmc:~ # tr '\0' '\n' < /proc/`pidof kodi.bin`/environ __GL_YIELD, DISPLAY etc are set in /usr/lib/systemd/system/kodi.service but MALLOC_MMAP_THRESHOLD_ is missing. so long, Hias RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Milhouse - 2018-01-26 (2018-01-26, 23:32)popcornmix Wrote: This is feeling a bit like the music database memory leak we had before in kodi (worked around with MALLOC_MMAP_THRESHOLD_). I don't think we're setting this for arm: https://github.com/LibreELEC/LibreELEC.tv/blob/master/packages/mediacenter/kodi/scripts/kodi-config#L56-L58 as this fragmentation issue first surfaced on 64-bit systems (PR for change: https://github.com/LibreELEC/LibreELEC.tv/pull/1286) I'll run some tests with default, large and small values and let you know. RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Milhouse - 2018-01-27 New LibreELEC.tv Leia build #0126: RPi / RPi2 (Supercedes previous build) SHA256 Checksum: d8440c9c3674682bfb010801b4122b7bd1b9189ce8c0288f062625258ce6bae1 (RPi)SHA256 Checksum: 4ea7109cabaf813d5d1dda01c2cb1e87d196c06a42da7300bbcad03a5c279ea2 (RPi2)
Based on tip of LibreELEC.tv master (4ff4537, changelog) and tip of XBMC master (6ad6c22, changelog) with the following modifications:
RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Milhouse - 2018-01-27 LiveTV OSD users - please test build #0126b: RPi2 This includes PR:13444 which hopefully fixes the OK/Select remote control issue. RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - Milhouse - 2018-01-27 Thanks @popcornmix for having such a good memory - this definitely does look like another fragmentation issue. I've tested various values for MALLOC_MMAP_THRESHOLD_ (with #0126 on RPi3, gcc-7.2.0, glibc-2.26, gpu_mem=320MB, arm=704MB) and these are the results:As can be seen, and probably expected, the smaller the threshold chunk size the less "loss" resulting from fragmentation and more free memory that remains available. This is a link to the glibc tunables page, which explains MALLOC_MMAP_THRESHOLD_ .I'm not sure how low we want to go with MALLOC_MMAP_THRESHOLD_ - a value of 8192 might be a usable value. I feel that going as low as 1024 might result in an excessive number of chunks for no real advantage. But that's all a bit finger-in-the-air.Unless there's any better idea I'll set MALLOC_MMAP_THRESHOLD_=8192 for arm in future builds (commit).
RE: LibreELEC Testbuilds for RaspberryPi (Kodi 18.0) - polo_joe - 2018-01-27 Build #0126b can't be found, error 404. |