ヒートシンク無し
unix ベンチでも60度C超えないよ
吸気より排気の方が冷える
unix ベンチでも55度C超えないよ
[基本情報]
# vcgencmd version
Jun 20 2019 16:05:00
Copyright (c) 2012 Broadcom
version 407b1da8fa3d1a7108cb1d250f5064a3420d2b7d (clean) (release) (start_cd)
# cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 108.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
.
. あと3 core
.
Hardware : BCM2835
Revision : c03111
Serial : 10000000b7d72729
# cat /proc/meminfo
MemTotal: 4051032 kB
MemFree: 3854844 kB
MemAvailable: 3827636 kB
※4GBモデル..
.
# cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
1500000
涼しい!!!
# vcgencmd measure_temp
temp=48.0'C
[usb 3.0]
# lspci
00:00.0 PCI bridge: Broadcom Limited Device 2711 (rev 10)
01:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host Controller (rev 01)
余ってたusb メモリで試す。
# hdparm -t /dev/sda
/dev/sda:
SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Timing buffered disk reads: 304 MB in 3.00 seconds = 101.17 MB/sec
root@raspi4:~#
101.17 MB/secと高速 !!!!
定番の
[UNIX Benchmark]
BYTE UNIX Benchmarks (Version 5.1.3)
System: raspi4: GNU/Linux
OS: GNU/Linux -- 4.19.50-v7l+ -- #895 SMP Thu Jun 20 16:03:42 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)
BYTE UNIX Benchmarks (Version 5.1.3)
System: raspi4: GNU/Linux
OS: GNU/Linux -- 4.19.50-v7l+ -- #895 SMP Thu Jun 20 16:03:42 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)
13:22:30 up 50 min, 2 users, load average: 0.15, 0.03, 0.01; runlevel 5
------------------------------------------------------------------------
Benchmark Run: 水 7月 10 2019 13:22:30 - 13:50:32
4 CPUs in system; running 4 parallel copies of tests
Dhrystone 2 using register variables 40558612.6 lps (10.0 s, 7 samples)
Double-Precision Whetstone 9568.0 MWIPS (9.6 s, 7 samples)
Execl Throughput 2762.7 lps (29.9 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 212991.3 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 59038.7 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 564952.0 KBps (30.1 s, 2 samples)
Pipe Throughput 606927.9 lps (10.0 s, 7 samples)
Pipe-based Context Switching 190875.9 lps (10.0 s, 7 samples)
Process Creation 4626.3 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 5876.2 lpm (60.0 s, 2 samples)
Shell Scripts (8 concurrent) 804.0 lpm (60.1 s, 2 samples)
System Call Overhead 1868584.3 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 40558612.6 3475.5
Double-Precision Whetstone 55.0 9568.0 1739.6
Execl Throughput 43.0 2762.7 642.5
File Copy 1024 bufsize 2000 maxblocks 3960.0 212991.3 537.9
File Copy 256 bufsize 500 maxblocks 1655.0 59038.7 356.7
File Copy 4096 bufsize 8000 maxblocks 5800.0 564952.0 974.1
Pipe Throughput 12440.0 606927.9 487.9
Pipe-based Context Switching 4000.0 190875.9 477.2
Process Creation 126.0 4626.3 367.2
Shell Scripts (1 concurrent) 42.4 5876.2 1385.9
Shell Scripts (8 concurrent) 6.0 804.0 1340.0
System Call Overhead 15000.0 1868584.3 1245.7
========
System Benchmarks Index Score 850.7
とりあえず......
0 件のコメント:
コメントを投稿