ssvb’s gists

ssvb / gist:5427109

Created April 20, 2013 19:37

mediainfo for sintel_trailer-1080p.mp4

	$ mediainfo sintel_trailer-1080p.mp4
	General
	Complete name : sintel_trailer-1080p.mp4
	Format : MPEG-4
	Format profile : Base Media
	Codec ID : isom
	File size : 13.9 MiB
	Duration : 52s 209ms
	Overall bit rate mode : Variable
	Overall bit rate : 2 240 Kbps

ssvb / gist:5453379

Created April 24, 2013 16:13

Test of gles-yellow-blue-flip.c (d147e25fc507b798b89fdd177206737e1b72ae60) on ODROID-X with r3p2 mali400 drivers

	# xtrace -d :0 -D :2 -n ./gles-yellow-blue-flip \| grep DRI2

	001:<:0007: 12: Request(98): QueryExtension name='DRI2'
	000:<:000a: 12: Request(98): QueryExtension name='DRI2'
	000:<:000d: 12: DRI2-Request(136,1): Connect window=0x000000e2 driver-type=DRI(0x00000000)
	000:<:000e: 12: DRI2-Request(136,2): Authenticate window=0x000000e2 token=0x00000004
	000:<:004e: 8: DRI2-Request(136,3): CreateDrawable drawable=0x03a00001
	000:<:004f: 16: DRI2-Request(136,5): GetBuffers drawable=0x03a00001 attachments={attachment=BackLeft(0x00000001)};
	000:>:0054: Event DRI2-InvalidateBuffers(75) drawable=0x03a00001
	001:<:000c: 32: DRI2-Request(136,8): SwapBuffers drawable=0x03a00001 target_msc_hi=0 target_msc_lo=0 divisor_hi=0 divisor_lo=0 remainder_hi=0 remainder_lo=0

ssvb / gist:5492148

Created April 30, 2013 21:38

Benchmarking linux framebuffer driver vs. libhybris on Allwinner A10 hardware (Mali400 GPU)

	Tests done with:

	https://github.com/ssvb/libhybris/commit/23bd20eb6c75fc5c6124f1f2c2532356fd91ab3e

	=== mali framebuffer driver: ===

	CPU load = ~0%

	strace -f ./test_glesv2_mali_fb

ssvb / gist:5497187

Created May 1, 2013 18:26

libhybris & mali400, high cpu usage investigation

	Trying to find a culprit to blame for the sched_yield() calls logged at
	https://gist.github.com/ssvb/5492148

	# gdb ./test_glesv2

	[...]

	linker.c:661\| WARNING: `libc.so` is not a prelinked library
	0 mapped library 'libc.so' to b6d0a000 via kernel allocator.

ssvb / gist:5497676

Created May 1, 2013 19:27

	# EGL_PLATFORM=fbdev ./test_glesv2
	linker.c:661\| WARNING: `/system/lib/libEGL.so` is not a prelinked library
	0 mapped library 'libEGL.so' to b6cd9000 via kernel allocator.
	linker.c:661\| WARNING: `liblog.so` is not a prelinked library
	0 mapped library 'liblog.so' to b6f51000 via kernel allocator.
	linker.c:661\| WARNING: `libc.so` is not a prelinked library
	0 mapped library 'libc.so' to b6c88000 via kernel allocator.
	linker.c:661\| WARNING: `libdsyscalls.so` is not a prelinked library
	0 mapped library 'libdsyscalls.so' to b6c37000 via kernel allocator.
	linker.c:661\| WARNING: `libstdc++.so` is not a prelinked library

ssvb / gist:5497833

Created May 1, 2013 19:49

	libhybris 5165b4b543793c507ad4b72655480232ccd6d5c4

	# export EGL_PLATFORM=fbdev
	# valgrind ./test_glesv2
	==1256== Memcheck, a memory error detector
	==1256== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
	==1256== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
	==1256== Command: ./test_glesv2
	==1256==
	linker.c:661\| WARNING: `/system/lib/libEGL.so` is not a prelinked library

ssvb / gist:5497878

Created May 1, 2013 19:56

ssvb / gist:5653316

Last active December 17, 2015 18:29

Allwinner A10 memory bandwidth tests

ssvb / meminfo-nand.txt

Created June 30, 2013 06:04

a10-meminfo for CubieBoard2 firmware from nand

ssvb / meminfo-open-source-uboot.txt

Created June 30, 2013 06:07

a10-meminfo for CubieBoard2 with normal open source u-boot ( https://github.com/hno/u-boot/tree/wip/a20 )

Siarhiej Siamaška ssvb