where's the bottleneck?

Carl Karsten <[email protected]>
Newsgroups gmane.comp.video.transcode.devel
Message-ID <[email protected]> 
I am wondering why the older box
Intel(R) Pentium(R) M processor 1.73GHz (just external usb)
is faster than the newer:
AMD Turion(tm) 64, 2 gig ram, i386 kernel (local sata drive, then external usb)

below are my 'benchmarks' and cpu info.

Carl K

local sata drive:
juser@pycon08a:~/temp/pycon$ cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 104
model name      : AMD Turion(tm) 64 X2 Mobile Technology TL-60
stepping        : 2
cpu MHz         : 2000.256
cache size      : 512 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     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 
3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch 
ts fid vid ttp tm stc 100mhzsteps
bogomips        : 4004.46
clflush size    : 64

processor       : 1
(same)



++ transcode -Q 0 -i '/media/Ballroom 4P/clip-2008-03-15 11;07;38.dv' -x dv,null 
-o img/x -y im -F png -c 
0-1,900-901,1800-1801,2700-2701,3600-3601,4500-4501,5400-5401,6300-6301,7200-7201,8100-8101,9000-9001,9900-9901,10800-10801,11700-11701,12600-12601,13500-13501,14400-14401,15300-15301,16200-16201,17100-17101
transcode v1.2.0-cvs (C) 2001-2003 Thomas Oestreich, 2003-2007 Transcode Team
[transcode] V: auto-probing     | /media/Ballroom 4P/clip-2008-03-15 11;07;38.dv 
(OK)
[transcode] V: import format    | DigitalVideo in NTSC (module=dv)
[transcode] A: auto-probing     | /media/Ballroom 4P/clip-2008-03-15 11;07;38.dv 
(OK)
[transcode] A: import format    | PCM in NTSC (module=null)
[transcode] V: AV demux/sync    | (1) sync AV at initial MPEG sequence
[transcode] V: import frame     | 720x480  1.50:1  encoded @ 4:3
[transcode] V: bits/pixel       | 0.174
[transcode] V: decoding fps,frc | 29.970,4
[transcode] V: video format     | YUV420 (4:2:0) aka I420
[transcode] A: import format    | 0x1     PCM          [48000,16,2] 1536 kbps
[transcode] A: export format    | 0x55    MPEG ES Layer 3 [48000,16,2]  128 kbps
[transcode] V: export format    | unknown (module dependant)
[transcode] V: encoding fps,frc | 29.970,4
[transcode] A: bytes per frame  | 6408 (6406.400000)
[transcode] A: adjustment       | -1600@1000
[transcode] V: IA32/AMD64 accel | sse3 sse2 sse 3dnowext 3dnow mmxext mmx cmove asm
[transcode] V: video buffer     | 10 @ 720x480 [0x2]
[transcode] A: audio buffer     | 10 @ 48000x2x16
[import_null.so] v0.2.0 (2002-01-19) (video) null | (audio) null
[import_dv.so] v0.3.1 (2003-10-14) (video) DV | (audio) PCM
[export_im.so] v0.0.4 (2003-11-13) (video) *
[import_dv.so] tcextract -x dv -i "/media/Ballroom 4P/clip-2008-03-15 
11;07;38.dv" -d 0 | tcdecode -x dv -y yuv420p -d 0 -Q 5
skipping frames [0-17099],  76.55 fps, CFT: 0:09:30,  ( 9| 0|11)
[transcode] encoded 20 frames (0 dropped, 0 cloned), clip length   0.67 s

real    3m59.267s
user    3m34.797s
sys     0m26.922s

++ transcode -Q 0 -i 'clip-2008-03-15 11;07;38.dv' -x dv,null -o img/x -y im -F 
png -c 
0-1,900-901,1800-1801,2700-2701,3600-3601,4500-4501,5400-5401,6300-6301,7200-7201,8100-8101,9000-9001,9900-9901,10800-10801,11700-11701,12600-12601,13500-13501,14400-14401,15300-15301,16200-16201,17100-17101
transcode v1.2.0-cvs (C) 2001-2003 Thomas Oestreich, 2003-2007 Transcode Team
...
[import_dv.so] tcextract -x dv -i "clip-2008-03-15 11;07;38.dv" -d 0 | tcdecode 
-x dv -y yuv420p -d 0 -Q 5
skipping frames [0-17099],  75.73 fps, CFT: 0:09:30,  ( 9| 0|11)
[transcode] encoded 20 frames (0 dropped, 0 cloned), clip length   0.67 s

real    4m2.037s
user    3m35.557s
sys     0m25.478s


++ transcode -Q 0 -i '/media/Ballroom 4P/clip-2008-03-15 11;07;38.dv' -x dv,null 
-o img/x -y im -F png -c 
0-1,900-901,1800-1801,2700-2701,3600-3601,4500-4501,5400-5401,6300-6301,7200-7201,8100-8101,9000-9001,9900-9901,10800-10801,11700-11701,12600-12601,13500-13501,14400-14401,15300-15301,16200-16201,17100-17101
transcode v1.0.5 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg, 
2004-2008 Transcode Team
[transcode] (probe) suggested AV correction -D 0 (0 ms) | AV 0 ms | 0 ms
[transcode] auto-probing source /media/Ballroom 4P/clip-2008-03-15 11;07;38.dv (ok)
[transcode] V: import format    | Digital Video  (V=dv|A=null)
[transcode] V: import frame     | 720x480  1.50:1  encoded @ 4:3
[transcode] V: bits/pixel       | 0.174
[transcode] V: decoding fps,frc | 29.970,4
[transcode] V: Y'CbCr           | YV12/I420
[transcode] A: import format    | 0x1     PCM          [48000,16,2] 1536 kbps
[transcode] A: export format    | 0x55    MPEG layer-3 [48000,16,2]  128 kbps
[transcode] V: encoding fps,frc | 29.970,4
[transcode] A: bytes per frame  | 6408 (6406.400000)
[transcode] A: adjustment       | -1600@1000
[transcode] V: IA32/AMD64 accel | sse2 (sse2 sse mmxext mmx asm C)
[transcode] V: IA32/AMD64 accel | using sse memcpy
[transcode] V: video buffer     | 10 @ 720x480
[import_null.so] v0.2.0 (2002-01-19) (video) null | (audio) null
[import_dv.so] v0.3.1 (2003-10-14) (video) DV | (audio) PCM
[export_im.so] v0.0.4 (2003-11-13) (video) *
[import_dv.so] tcextract -x dv -i "/media/Ballroom 4P/clip-2008-03-15 
11;07;38.dv" -d 0 | tcdecode -x dv -y yv12 -d 0 -Q 5
skipping frames [000001-000899],  67.64 fps, EMT: 0:00:29, ( 0| 0| 2)
skipping frames [000901-001799],  67.85 fps, EMT: 0:01:00, ( 0| 0| 0)
skipping frames [001801-002699],  67.65 fps, EMT: 0:01:30, ( 0| 0| 1)
skipping frames [002701-003599],  67.65 fps, EMT: 0:02:00, ( 0| 0| 2)
skipping frames [003601-004499],  67.04 fps, EMT: 0:02:30, ( 0| 0| 1)
skipping frames [004501-005399],  67.86 fps, EMT: 0:03:00, ( 0| 0| 2)
skipping frames [005401-006299],  67.86 fps, EMT: 0:03:30, ( 0| 0| 2)
skipping frames [006301-007199],  67.65 fps, EMT: 0:04:00, ( 0| 0| 2)
skipping frames [007201-008099],  67.45 fps, EMT: 0:04:30, ( 0| 0| 1)
skipping frames [008101-008999],  68.27 fps, EMT: 0:05:00, ( 0| 0| 1)
skipping frames [009001-009899],  68.06 fps, EMT: 0:05:30, ( 0| 0| 1)
skipping frames [009901-010799],  67.86 fps, EMT: 0:06:00, ( 0| 0| 1)
skipping frames [010801-011699],  68.06 fps, EMT: 0:06:30, ( 0| 0| 1)
skipping frames [011701-012599],  67.85 fps, EMT: 0:07:00, ( 0| 0| 1)
skipping frames [012601-013499],  68.06 fps, EMT: 0:07:30, ( 0| 0| 1)
skipping frames [013501-014399],  68.48 fps, EMT: 0:08:00, ( 0| 0| 1)
skipping frames [014401-015299],  68.06 fps, EMT: 0:08:30, ( 0| 0| 2)
skipping frames [015301-016199],  68.07 fps, EMT: 0:09:00, ( 0| 0| 2)
skipping frames [016201-017099],  68.07 fps, EMT: 0:09:30, ( 0| 0| 0)

clean up | frame threads | unload modules | cancel signal | internal threads | done
[transcode] encoded 20 frames (0 dropped, 0 cloned), clip length   0.67 s

real    4m18.462s
user    3m55.187s
sys     0m20.565s

carl@asus17:~/temp/pycon$ cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.73GHz
stepping        : 8
cpu MHz         : 798.000
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe up est tm2
bogomips        : 1597.78
clflush size    : 64
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