$ lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description: Raspbian GNU/Linux 10 (buster)
Release: 10
Codename: buster
# CPU温度
$ vcgencmd measure_temp
temp=60.7C
# 周波数
$ vcgencmd measure_clock arm
frequency(45)=600000000
# 電圧
$ vcgencmd measure_volts
volt=1.2000V
# CPUメモリ
$ vcgencmd get_mem arm
arm=948M
# GPUメモリ
＄vcgencmd get_mem gpu
gpu=76MCPUやメモリなどのシステム性能を比較するベンチマークツール 2ページ | さくらのナレッジ
# クローン
$ git clone https://github.com/kdlucas/byte-unixbench
$ cd byte-unixbench/UnixBench/
$ ./rununixbench 後の、CPU温度=61.2C だった。
=======================================================================
BYTE UNIX Benchmarks (Version 5.1.3
System: rasp-01: GNU/Linu
OS: GNU/Linux -- 4.19.75-v7+ -- #1270 SMP Tue Sep 24 18:45:11 BST 201
Machine: armv7l (unknown
Language: en_US.utf8 (charmap="ANSI_X3.4-1968", collate="ANSI_X3.4-1968"
CPU 0: ARMv7 Processor rev 4 (v7l) (0.0 bogomips
CPU 1: ARMv7 Processor rev 4 (v7l) (0.0 bogomips
CPU 2: ARMv7 Processor rev 4 (v7l) (0.0 bogomips
CPU 3: ARMv7 Processor rev 4 (v7l) (0.0 bogomips
18:19:09 up 9 min, 1 user, load average: 1.21, 0.82, 0.40; runlevel Oc
-----------------------------------------------------------------------
Benchmark Run: 日 10月 13 2019 18:19:09 - 18:47:2
4 CPUs in system; running 1 parallel copy of test
Dhrystone 2 using register variables 4372535.5 lps (10.0 s, 7 samples
Double-Precision Whetstone 1204.0 MWIPS (9.8 s, 7 samples
Execl Throughput 730.4 lps (29.9 s, 2 samples
File Copy 1024 bufsize 2000 maxblocks 116432.4 KBps (30.0 s, 2 samples
File Copy 256 bufsize 500 maxblocks 36877.5 KBps (30.0 s, 2 samples
File Copy 4096 bufsize 8000 maxblocks 302928.7 KBps (30.0 s, 2 samples
Pipe Throughput 200644.4 lps (10.0 s, 7 samples
Pipe-based Context Switching 30082.6 lps (10.0 s, 7 samples
Process Creation 1184.6 lps (30.0 s, 2 samples
Shell Scripts (1 concurrent) 984.7 lpm (60.0 s, 2 samples
Shell Scripts (8 concurrent) 257.6 lpm (60.1 s, 2 samples
System Call Overhead 386329.3 lps (10.0 s, 7 samples
System Benchmarks Index Values BASELINE RESULT INDE
Dhrystone 2 using register variables 116700.0 4372535.5 374.
Double-Precision Whetstone 55.0 1204.0 218.
Execl Throughput 43.0 730.4 169.
File Copy 1024 bufsize 2000 maxblocks 3960.0 116432.4 294.
File Copy 256 bufsize 500 maxblocks 1655.0 36877.5 222.
File Copy 4096 bufsize 8000 maxblocks 5800.0 302928.7 522.
Pipe Throughput 12440.0 200644.4 161.
Pipe-based Context Switching 4000.0 30082.6 75.
Process Creation 126.0 1184.6 94.
Shell Scripts (1 concurrent) 42.4 984.7 232.
Shell Scripts (8 concurrent) 6.0 257.6 429.
System Call Overhead 15000.0 386329.3 257.
=======
System Benchmarks Index Score 221.
-----------------------------------------------------------------------
Benchmark Run: 日 10月 13 2019 18:47:23 - 19:15:5
4 CPUs in system; running 4 parallel copies of test
Dhrystone 2 using register variables 7298500.1 lps (10.0 s, 7 samples
Double-Precision Whetstone 2072.5 MWIPS (9.2 s, 7 samples
Execl Throughput 982.4 lps (29.8 s, 2 samples
File Copy 1024 bufsize 2000 maxblocks 92359.4 KBps (30.0 s, 2 samples
File Copy 256 bufsize 500 maxblocks 25530.4 KBps (30.0 s, 2 samples
File Copy 4096 bufsize 8000 maxblocks 256226.7 KBps (30.0 s, 2 samples
Pipe Throughput 469260.9 lps (10.0 s, 7 samples
Pipe-based Context Switching 70258.5 lps (10.0 s, 7 samples
Process Creation 3407.1 lps (30.0 s, 2 samples
Shell Scripts (1 concurrent) 2201.2 lpm (60.1 s, 2 samples
Shell Scripts (8 concurrent) 264.2 lpm (60.5 s, 2 samples
System Call Overhead 1680534.5 lps (10.0 s, 7 samples
System Benchmarks Index Values BASELINE RESULT INDE
Dhrystone 2 using register variables 116700.0 7298500.1 625.
Double-Precision Whetstone 55.0 2072.5 376.
Execl Throughput 43.0 982.4 228.
File Copy 1024 bufsize 2000 maxblocks 3960.0 92359.4 233.
File Copy 256 bufsize 500 maxblocks 1655.0 25530.4 154.
File Copy 4096 bufsize 8000 maxblocks 5800.0 256226.7 441.
Pipe Throughput 12440.0 469260.9 377.
Pipe-based Context Switching 4000.0 70258.5 175.
Process Creation 126.0 3407.1 270.
Shell Scripts (1 concurrent) 42.4 2201.2 519.
Shell Scripts (8 concurrent) 6.0 264.2 440.
System Call Overhead 15000.0 1680534.5 1120.
=======
System Benchmarks Index Score 354.
m2ts 用意。NHKを10秒録画。
$ recdvb --b25 --strip 24 10 test.m2ts
test.m2ts の情報
$ ffprobe test.m2ts
...
Input #0, mpegts, from 'test.m2ts':
Duration: 00:00:10.45, start: 50630.497722, bitrate: 14782 kb/s
Program 1064
Metadata:
service_name : ?|���D+F|
service_provider:
Stream #0:0[0x111]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, bt709, top first), 1440x1080 [SAR 4:3 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
Stream #0:1[0x112]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 192 kb/s
...
m2ts から mp4(映像: H.264、音声:mp3)に変換。※オプション未指定の場合と同様
fps 2.5。動画変換に約２分かかる。
$ ffmpeg -i test.m2ts output.mp4 -vcodec libx264 -acodec libmp3lame
...
frame= 296 fps=2.5 q=-1.0 Lsize= 5358kB time=00:00:09.77 bitrate=4489.5kbits/s dup=24 drop=0 speed=0.0826x
video:5195kB audio:152kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.210654%
...
output.mp4 の情報
$ ffprobe output.mp4
...
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.20.100
Duration: 00:00:09.88, start: 0.000000, bitrate: 4443 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 4308 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s (default)
Metadata:
handler_name : SoundHandler
...
m2ts から mp4 に変換。（オプション無し）
$ ffmpeg -i test.m2ts output2.mp4
...
frame= 296 fps=2.5 q=-1.0 Lsize= 5358kB time=00:00:09.77 bitrate=4489.5kbits/s dup=24 drop=0 speed=0.0841x
video:5195kB audio:152kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.210654%
...
output2.mp4 の情報
$ ffprobe output2.mp4
...
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.20.100
Duration: 00:00:09.88, start: 0.000000, bitrate: 4443 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 4308 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s (default)
Metadata:
handler_name : SoundHandler
※冷却ファン付き アルミニウム合金ケースを使用している。
$ lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description: Raspbian GNU/Linux 10 (buster)
Release: 10
Codename: buster
# CPU温度
$ vcgencmd measure_temp
temp=46.0C
# 周波数
$ vcgencmd measure_clock arm
frequency(48)=1500398464
# 電圧
$ vcgencmd measure_volts
volt=0.8455V
# CPUメモリ
$ vcgencmd get_mem arm
arm=948M
# GPUメモリ
＄vcgencmd get_mem gpu
gpu=76M# クローン
$ git clone https://github.com/kdlucas/byte-unixbench
$ cd byte-unixbench/UnixBench/
$ ./Rununixbench 後の、CPU温度=46.0C だった。
========================================================================
BYTE UNIX Benchmarks (Version 5.1.3)
System: rasp-03: GNU/Linux
OS: GNU/Linux -- 4.19.75-v7l+ -- #1270 SMP Tue Sep 24 18:51:41 BST 2019
Machine: armv7l (unknown)
Language: en_US.utf8 (charmap="ANSI_X3.4-1968", collate="ANSI_X3.4-1968")
CPU 0: ARMv7 Processor rev 3 (v7l) (0.0 bogomips)
CPU 1: ARMv7 Processor rev 3 (v7l) (0.0 bogomips)
CPU 2: ARMv7 Processor rev 3 (v7l) (0.0 bogomips)
CPU 3: ARMv7 Processor rev 3 (v7l) (0.0 bogomips)
23:38:32 up 1:22, 1 user, load average: 0.44, 0.94, 1.08; runlevel Oct
------------------------------------------------------------------------
Benchmark Run: 日 10月 13 2019 23:38:32 - 00:06:32
4 CPUs in system; running 1 parallel copy of tests
Dhrystone 2 using register variables 10123054.6 lps (10.0 s, 7 samples)
Double-Precision Whetstone 2365.1 MWIPS (9.4 s, 7 samples)
Execl Throughput 825.1 lps (29.7 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 108608.8 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 30904.5 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 301953.2 KBps (30.0 s, 2 samples)
Pipe Throughput 157166.8 lps (10.0 s, 7 samples)
Pipe-based Context Switching 43586.2 lps (10.0 s, 7 samples)
Process Creation 1596.9 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 2590.2 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 685.7 lpm (60.1 s, 2 samples)
System Call Overhead 480465.9 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 10123054.6 867.4
Double-Precision Whetstone 55.0 2365.1 430.0
Execl Throughput 43.0 825.1 191.9
File Copy 1024 bufsize 2000 maxblocks 3960.0 108608.8 274.3
File Copy 256 bufsize 500 maxblocks 1655.0 30904.5 186.7
File Copy 4096 bufsize 8000 maxblocks 5800.0 301953.2 520.6
Pipe Throughput 12440.0 157166.8 126.3
Pipe-based Context Switching 4000.0 43586.2 109.0
Process Creation 126.0 1596.9 126.7
Shell Scripts (1 concurrent) 42.4 2590.2 610.9
Shell Scripts (8 concurrent) 6.0 685.7 1142.9
System Call Overhead 15000.0 480465.9 320.3
========
System Benchmarks Index Score 308.6
------------------------------------------------------------------------
Benchmark Run: 月 10月 14 2019 00:06:32 - 00:34:39
4 CPUs in system; running 4 parallel copies of tests
Dhrystone 2 using register variables 36763438.3 lps (10.0 s, 7 samples)
Double-Precision Whetstone 8499.7 MWIPS (9.7 s, 7 samples)
Execl Throughput 2332.6 lps (29.6 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 197533.1 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 55015.8 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 574217.5 KBps (30.0 s, 2 samples)
Pipe Throughput 554865.0 lps (10.0 s, 7 samples)
Pipe-based Context Switching 155417.9 lps (10.0 s, 7 samples)
Process Creation 4251.2 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 5438.2 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 726.2 lpm (60.1 s, 2 samples)
System Call Overhead 1697096.3 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 36763438.3 3150.3
Double-Precision Whetstone 55.0 8499.7 1545.4
Execl Throughput 43.0 2332.6 542.5
File Copy 1024 bufsize 2000 maxblocks 3960.0 197533.1 498.8
File Copy 256 bufsize 500 maxblocks 1655.0 55015.8 332.4
File Copy 4096 bufsize 8000 maxblocks 5800.0 574217.5 990.0
Pipe Throughput 12440.0 554865.0 446.0
Pipe-based Context Switching 4000.0 155417.9 388.5
Process Creation 126.0 4251.2 337.4
Shell Scripts (1 concurrent) 42.4 5438.2 1282.6
Shell Scripts (8 concurrent) 6.0 726.2 1210.4
System Call Overhead 15000.0 1697096.3 1131.4
========
System Benchmarks Index Score 771.6
3 の時に使用した時と同様の 10秒の m2tsファイルを利用
m2ts から mp4(映像: H.264、音声:mp3)に変換。※オプション未指定の場合と同様
fps 8.4。動画変換に約40秒かかる。 3 に比べ３倍近い速度に！
$ ffmpeg -i test.m2ts output.mp4 -vcodec libx264 -acodec libmp3lame
...
frame= 296 fps=8.4 q=-1.0 Lsize= 5358kB time=00:00:09.77 bitrate=4489.5kbits/s dup=24 drop=0 speed=0.276x
video:5195kB audio:152kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.210654%
...
output.mp4 の情報
$ ffprobe output.mp4
...
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.20.100
Duration: 00:00:09.88, start: 0.000000, bitrate: 4443 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 4308 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s (default)
Metadata:
handler_name : SoundHandler
...
m2ts から mp4 に変換。（オプション無し）
$ ffmpeg -i test.m2ts output2.mp4
...
frame= 296 fps=8.3 q=-1.0 Lsize= 5358kB time=00:00:09.77 bitrate=4489.5kbits/s dup=24 drop=0 speed=0.273x
video:5195kB audio:152kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.210654%
...
output2.mp4 の情報
$ ffprobe output2.mp4
...
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.20.100
Duration: 00:00:09.88, start: 0.000000, bitrate: 4443 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 4308 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s (default)
Metadata:
handler_name : SoundHandler