[FFmpeg-devel] threads regression tests seem to always fail on core 2 duo

[Baptiste Coudurier]

Hi all,

On my core 2 duo box, threads regression tests always fail:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 Duo CPU     E6850  @ 3.00GHz
stepping        : 11
cpu MHz         : 2992.719
cache size      : 4096 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 5988.93
clflush size    : 64

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 Duo CPU     E6850  @ 3.00GHz
stepping        : 11
cpu MHz         : 2992.719
cache size      : 4096 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm
constant_tsc pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 5984.98
clflush size    : 64

FFmpeg version SVN-r11000, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-libmp3lame --enable-libfaac
--enable-liba52 --enable-libx264 --enable-pthreads --enable-libxvid
--enable-libfaad
  libavutil version: 49.5.0
  libavcodec version: 51.48.0
  libavformat version: 51.19.0
  built on Nov 11 2007 20:14:35, gcc: 4.2.3 20071014 (prerelease)
(Debian 4.2.2-3)
usage: ffmpeg [[infile options] -i infile]... {[outfile options] outfile}...

--- ./tests/data/ffmpeg.regression      2007-11-11 20:17:25.000000000 +0100
+++ /usr/local/src/ffmpeg/svn2/tests/ffmpeg.regression.ref
2007-11-07 13:00:31.000000000 +0100
@@ -27,9 +27,9 @@
 803833 ./tests/data/a-mpeg2threadivlc.mpg
 c0e8cbde76ff8377494fe6843fd03e11 *./tests/data/out.yuv
 stddev:  7.63 PSNR:30.47 bytes:7602176
-11cd11a9a797b38679203c21b1c467f5 *./tests/data/a-mpeg2reuse.mpg
-2104591 ./tests/data/a-mpeg2reuse.mpg
-e1e9c68b0940da9ea6ca86f8c114a7e3 *./tests/data/out.yuv
+c8d8b07b5fa97e0affb4a52d4d30a2b6 *./tests/data/a-mpeg2reuse.mpg
+2102956 ./tests/data/a-mpeg2reuse.mpg
+75d3dfc8133f0122cb9e272a21bc8c5c *./tests/data/out.yuv
 stddev:  7.67 PSNR:30.42 bytes:7602176
 c83ae8d8f3e2b4506df58e6a2f7e3b2a *./tests/data/a-msmpeg4v2.avi
 636512 ./tests/data/a-msmpeg4v2.avi
@@ -87,9 +87,9 @@
 878264 ./tests/data/a-mpeg4-Q.avi
 8995abbcc97ed4767fcbc0bf46accd01 *./tests/data/out.yuv
 stddev:  5.61 PSNR:33.13 bytes:7602176
-05f6426f5dd4755f5cd72855f25c2837 *./tests/data/a-mpeg4-thread.avi
-763972 ./tests/data/a-mpeg4-thread.avi
-1bc53964082a0e73d00f57ab383e7268 *./tests/data/out.yuv
+a20b1d73bb0671dbd2012494c31719a6 *./tests/data/a-mpeg4-thread.avi
+761506 ./tests/data/a-mpeg4-thread.avi
+a9835b5b6a34a3fd70c168dc60fb9687 *./tests/data/out.yuv
 stddev: 12.31 PSNR:26.31 bytes:7602176
 743cf18c1e8941591f8ab41350247c42 *./tests/data/a-mpeg4-PSP.mp4
 406441 ./tests/data/a-mpeg4-PSP.mp4

I always get the same diff.

-- 
Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
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