[raspberry pi4]拿到raspberry pi4之后,如何熟悉单板
//基本配置命令
sudo raspi-config
//7zip GUI
pi@raspberrypi:~/Downloads $ ./7zzs b
7-Zip (z) 21.07 (armt) : Copyright (c) 1999-2021 Igor Pavlov : 2021-12-26
32-bit arm_v:7 thumb:2 locale=zh_CN.UTF-8 Threads:4
Compiler: 9.2.1 20191025 GCC 9.2.1
Linux : 5.10.52-v7l+ : #1441 SMP Tue Aug 3 18:11:56 BST 2021 : armv7l
PageSize:4KB hwcap:3FB0D6:NEON hwcap2:10:CRC32
LE
1T CPU Freq (MHz): 770 1496 1499 1482 1492 1498 1498
2T CPU Freq (MHz): 199% 1487 200% 1498
RAM size: 2048 MB, # CPU hardware threads: 4
RAM usage: 889 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 4002 333 1170 3894 | 79365 363 1865 6771
23: 3711 339 1116 3781 | 77910 364 1853 6741
24: 3640 342 1144 3914 | 81043 388 1833 7112
25: 3506 351 1142 4004 | 72867 358 1810 6485
---------------------------------- | ------------------------------
Avr: 3715 341 1143 3898 | 77796 368 1840 6777
Tot: 355 1492 5338
console:
RAM size: 2048 MB, # CPU hardware threads: 4
RAM usage: 889 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 4159 333 1216 4046 | 80710 362 1901 6886
23: 3981 345 1177 4057 | 82400 378 1887 7130
24: 3753 337 1198 4035 | 76818 360 1875 6741
25: 3684 357 1178 4207 | 74340 358 1849 6616
---------------------------------- | ------------------------------
Avr: 3894 343 1192 4086 | 78567 364 1878 6843
Tot: 354 1535 5465
//系统温度：
cd /sys/class/thermal
ls -al
cat thermal_zone0/type
cat thermal_zone0/temp
查询linux系统的信息
启动脚本：待补充
pi@raspberrypi:~ $ cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"
pi@raspberrypi:~ $ lsmod
Module Size Used by
rfcomm 49152 4
fuse 126976 3
bnep 20480 2
hci_uart 40960 1
btbcm 16384 1 hci_uart
bluetooth 393216 29 hci_uart,bnep,btbcm,rfcomm
ecdh_generic 16384 1 bluetooth
ecc 40960 1 ecdh_generic
8021q 32768 0
garp 16384 1 8021q
stp 16384 1 garp
llc 16384 2 garp,stp
joydev 20480 0
vc4 253952 3
brcmfmac 327680 0
cec 49152 1 vc4
brcmutil 20480 1 brcmfmac
sha256_generic 16384 0
drm_kms_helper 241664 3 vc4
v3d 73728 3
gpu_sched 45056 1 v3d
cfg80211 761856 1 brcmfmac
drm 520192 10 v3d,vc4,gpu_sched,drm_kms_helper
rfkill 32768 6 bluetooth,cfg80211
drm_panel_orientation_quirks 16384 1 drm
bcm2835_codec 36864 0
bcm2835_isp 32768 0
bcm2835_v4l2 40960 0
v4l2_mem2mem 36864 1 bcm2835_codec
raspberrypi_hwmon 16384 0
bcm2835_mmal_vchiq 28672 3 bcm2835_isp,bcm2835_codec,bcm2835_v4l2
videobuf2_dma_contig 20480 2 bcm2835_isp,bcm2835_codec
videobuf2_vmalloc 16384 1 bcm2835_v4l2
videobuf2_memops 16384 2 videobuf2_dma_contig,videobuf2_vmalloc
videobuf2_v4l2 32768 4 bcm2835_isp,bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem
videobuf2_common 61440 5 bcm2835_isp,bcm2835_codec,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2
snd_soc_core 225280 1 vc4
videodev 249856 6 bcm2835_isp,bcm2835_codec,videobuf2_common,bcm2835_v4l2,v4l2_mem2mem,videobuf2_v4l2
snd_compress 20480 1 snd_soc_core
snd_bcm2835 28672 4
mc 45056 6 bcm2835_isp,bcm2835_codec,videobuf2_common,videodev,v4l2_mem2mem,videobuf2_v4l2
snd_pcm_dmaengine 16384 1 snd_soc_core
vc_sm_cma 32768 2 bcm2835_isp,bcm2835_mmal_vchiq
snd_pcm 106496 5 snd_compress,vc4,snd_pcm_dmaengine,snd_bcm2835,snd_soc_core
snd_timer 32768 1 snd_pcm
snd 77824 13 snd_compress,snd_timer,snd_bcm2835,snd_soc_core,snd_pcm
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
rpivid_mem 16384 0
backlight 20480 1 drm
uio_pdrv_genirq 16384 0
uio 20480 1 uio_pdrv_genirq
nvmem_rmem 16384 0
i2c_dev 20480 0
ip_tables 28672 0
x_tables 32768 1 ip_tables
ipv6 495616 38
pi@raspberrypi:/proc $ cat cpuinfo
processor : 0
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 126.00
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
processor : 1
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 126.00
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
processor : 2
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 126.00
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
processor : 3
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 126.00
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
Hardware : BCM2711
Revision : c03111
Serial : 10000000bafb5028
Model : Raspberry Pi 4 Model B Rev 1.1
pi@raspberrypi:/proc $ cat meminfo
MemTotal: 3866504 kB
MemFree: 3455744 kB
MemAvailable: 3548456 kB
Buffers: 29196 kB
Cached: 222252 kB
SwapCached: 0 kB
Active: 86360 kB
Inactive: 230344 kB
Active(anon): 540 kB
Inactive(anon): 112308 kB
Active(file): 85820 kB
Inactive(file): 118036 kB
Unevictable: 30248 kB
Mlocked: 16 kB
HighTotal: 3211264 kB
HighFree: 2882908 kB
LowTotal: 655240 kB
LowFree: 572836 kB
SwapTotal: 102396 kB
SwapFree: 102396 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 95600 kB
Mapped: 97464 kB
Shmem: 47596 kB
KReclaimable: 15648 kB
Slab: 32292 kB
SReclaimable: 15648 kB
SUnreclaim: 16644 kB
KernelStack: 1696 kB
PageTables: 4108 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 2035648 kB
Committed_AS: 846776 kB
VmallocTotal: 245760 kB
VmallocUsed: 5300 kB
VmallocChunk: 0 kB
Percpu: 464 kB
CmaTotal: 262144 kB
CmaFree: 247876 kB
pi@raspberrypi:/proc $ cat mounts
/dev/root / ext4 rw,noatime 0 0
devtmpfs /dev devtmpfs rw,relatime,size=1801156k,nr_inodes=97762,mode=755 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,relatime 0 0
securityfs /sys/kernel/security securityfs rw,nosuid,nodev,noexec,relatime 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0
tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0
cgroup2 /sys/fs/cgroup/unified cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate 0 0
cgroup /sys/fs/cgroup/systemd cgroup rw,nosuid,nodev,noexec,relatime,xattr,name=systemd 0 0
none /sys/fs/bpf bpf rw,nosuid,nodev,noexec,relatime,mode=700 0 0
cgroup /sys/fs/cgroup/net_cls,net_prio cgroup rw,nosuid,nodev,noexec,relatime,net_cls,net_prio 0 0
cgroup /sys/fs/cgroup/cpu,cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpu,cpuacct 0 0
cgroup /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/pids cgroup rw,nosuid,nodev,noexec,relatime,pids 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0
systemd-1 /proc/sys/fs/binfmt_misc autofs rw,relatime,fd=41,pgrp=1,timeout=0,minproto=5,maxproto=5,direct 0 0
mqueue /dev/mqueue mqueue rw,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
sunrpc /run/rpc_pipefs rpc_pipefs rw,relatime 0 0
configfs /sys/kernel/config configfs rw,relatime 0 0
/dev/mmcblk0p1 /boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro 0 0
tmpfs /run/user/1000 tmpfs rw,nosuid,nodev,relatime,size=386648k,mode=700,uid=1000,gid=1000 0 0
gvfsd-fuse /run/user/1000/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0
fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0
pi@raspberrypi:/proc $ uname -a
Linux raspberrypi 5.10.17-v7l+ #1414 SMP Fri Apr 30 13:20:47 BST 2021 armv7l GNU/Linux
pi@raspberrypi:/proc $ cat cmdline
coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 video=HDMI-A-1:1440x900M@60 smsc95xx.macaddr=DC:A6:32:17:19:A2 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=97685b82-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
pi@raspberrypi:/proc $ cat interrupts
CPU0 CPU1 CPU2 CPU3
25: 1 0 0 0 GICv2 99 Level timer
26: 0 0 0 0 GICv2 29 Level arch_timer
27: 17565 7886 8942 10472 GICv2 30 Level arch_timer
33: 4824 0 0 0 GICv2 65 Level fe00b880.mailbox
36: 6507 0 0 0 GICv2 153 Level uart-pl011
39: 347 0 0 0 GICv2 114 Level DMA IRQ
46: 2148 0 0 0 GICv2 66 Level VCHIQ doorbell
47: 29807 0 0 0 GICv2 158 Level mmc1, mmc0
48: 46489 0 0 0 GICv2 144 Level vc4 firmware kms
54: 3730 0 0 0 GICv2 189 Level eth0
55: 0 0 0 0 GICv2 190 Level eth0
61: 7059 0 0 0 GICv2 106 Level v3d
62: 0 0 0 0 GICv2 175 Level PCIe PME
63: 2364 0 0 0 BRCM STB PCIe MSI 524288 Edge xhci_hcd
IPI0: 0 0 0 0 CPU wakeup interrupts
IPI1: 0 0 0 0 Timer broadcast interrupts
IPI2: 254 258 277 295 Rescheduling interrupts
IPI3: 9411 11020 18603 13819 Function call interrupts
IPI4: 0 0 0 0 CPU stop interrupts
IPI5: 1805 707 574 817 IRQ work interrupts
IPI6: 0 0 0 0 completion interrupts
Err: 0
pi@raspberrypi:/proc $ cat devices
Character devices:
1 mem
4 /dev/vc/0
4 tty
5 /dev/tty
5 /dev/console
5 /dev/ptmx
5 ttyprintk
7 vcs
10 misc
13 input
14 sound
29 fb
81 video4linux
89 i2c
116 alsa
128 ptm
136 pts
162 raw
180 usb
189 usb_device
204 ttyAMA
216 rfcomm
226 drm
236 cec
237 media
238 rpivid-vp9mem
239 rpivid-h264mem
240 rpivid-intcmem
241 rpivid-hevcmem
242 uio
243 vchiq
244 hidraw
245 rpmb
246 bcm2835-gpiomem
247 vcio
248 vc-mem
249 bsg
250 watchdog
251 lirc
252 rtc
253 dma_heap
254 gpiochip
Block devices:
1 ramdisk
7 loop
8 sd
65 sd
66 sd
67 sd
68 sd
69 sd
70 sd
71 sd
128 sd
129 sd
130 sd
131 sd
132 sd
133 sd
134 sd
135 sd
179 mmc
259 blkext
pi@raspberrypi:/proc $ df -h
\u6587\u4ef6\u7cfb\u7edf \u5bb9\u91cf \u5df2\u7528 \u53ef\u7528 \u5df2\u7528% \u6302\u8f7d\u70b9
/dev/root 14G 7.5G 5.8G 57% /
devtmpfs 1.8G 0 1.8G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 17M 1.9G 1% /run
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/mmcblk0p1 253M 48M 205M 19% /boot
tmpfs 378M 4.0K 378M 1% /run/user/1000
root@raspberrypi:/proc # fdisk -l
Disk /dev/ram0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram1: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram2: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram3: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram4: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram5: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram6: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram7: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram8: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram9: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram10: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram11: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram12: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram13: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram14: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram15: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mmcblk0: 14.5 GiB, 15523119104 bytes, 30318592 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x97685b82
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 8192 532479 524288 256M c W95 FAT32 (LBA)
/dev/mmcblk0p2 532480 30318591 29786112 14.2G 83 Linux
root@raspberrypi:/usr/bin # lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
mmcblk0 179:0 0 14.5G 0 disk
├─mmcblk0p1 179:1 0 256M 0 part /boot
└─mmcblk0p2 179:2 0 14.2G 0 part /
root@raspberrypi:/proc # cat iomem
00000000-37ffffff : System RAM
00008000-00ffffff : Kernel code
01200000-01432143 : Kernel data
40000000-fbffffff : System RAM
fd500000-fd50930f : fd500000.pcie pcie@7d500000
fd580000-fd58ffff : fd580000.ethernet ethernet@7d580000
fd580e14-fd580e1c : unimac-mdio.-19
fe007000-fe007aff : fe007000.dma dma@7e007000
fe007b00-fe007eff : fe007b00.dma dma@7e007b00
fe00a000-fe00a023 : fe100000.watchdog watchdog@7e100000
fe00b840-fe00b87b : fe00b840.mailbox mailbox@7e00b840
fe00b880-fe00b8bf : fe00b880.mailbox mailbox@7e00b880
fe100000-fe100113 : fe100000.watchdog watchdog@7e100000
fe101000-fe102fff : fe101000.cprman cprman@7e101000
fe104000-fe104027 : fe104000.rng rng@7e104000
fe200000-fe2000b3 : fe200000.gpio gpio@7e200000
fe201000-fe2011ff : serial@7e201000
fe201000-fe2011ff : fe201000.serial serial@7e201000
fe215000-fe215007 : fe215000.aux aux@7e215000
fe300000-fe3000ff : fe300000.mmcnr mmcnr@7e300000
fe340000-fe3400ff : fe340000.emmc2 emmc2@7e340000
fe600000-fe6000ff : fe600000.firmwarekms firmwarekms@7e600000
fec00000-fec03fff : fec00000.v3d hub
fec04000-fec07fff : fec00000.v3d core0
fec11000-fec1101f : fe100000.watchdog watchdog@7e100000
600000000-63fffffff : pcie@7d500000
600000000-6000fffff : PCI Bus 0000:01
600000000-600000fff : 0000:01:00.0
600000000-600000fff : xhci-hcd
root@raspberrypi:/home/pi # i2cdetect -l
i2c-1 i2c bcm2835 (i2c@7e804000) I2C adapter
root@raspberrypi:/home/pi # i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
/raspberry pi 有一些自己的特殊命令，如下：
root@raspberrypi:/usr/bin # ls -al raspi*
-rwxr-xr-x 1 root root 84356 2\u6708 10 2021 raspi-config
-rwxr-xr-x 1 root root 20564 10\u6708 1 2019 raspi-gpio
-rwxr-xr-x 1 root root 2383 7\u6708 18 2019 raspinfo
lrwxrwxrwx 1 root root 22 4\u6708 30 22:09 raspistill -> /opt/vc/bin/raspistill
lrwxrwxrwx 1 root root 20 4\u6708 30 22:09 raspivid -> /opt/vc/bin/raspivid
lrwxrwxrwx 1 root root 23 4\u6708 30 22:09 raspividyuv -> /opt/vc/bin/raspividyuv
lrwxrwxrwx 1 root root 20 4\u6708 30 22:09 raspiyuv -> /opt/vc/bin/raspiyuv
root@raspberrypi:/usr/bin #
root@raspberrypi:/sys/class # cat /boot/config.txt
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]
#dtoverlay=vc4-fkms-v3d
start_x=1
gpu_mem=128
root@raspberrypi:/sys/class #
coremark跑分
看到eembc官网的pi4 能跑到 48626分 （https://www.eembc.org/viewer/?benchmark_seq=13417）
我用自己的跑一下，设置开机直接进CLI，然后参考上面别人跑分时的“Compiler Flags‘，输入命令：
make XCFLAGS="-O2 -DMULTITHREAD=4 -DUSE_PTHREAD -DPERFORMANCE_RUN=1 -lrt -pthread"
很快跑完，还是有差距，不确信是否与gcc等有关：
2K performance run parameters for coremark.
CoreMark Size : 666
Total ticks : 14204
Total time (secs): 14.204000
Iterations/Sec : 30977.189524
Iterations : 440000
Compiler version : GCC8.3.0
Compiler flags : -O2 -O2 -DMULTITHREAD=4 -DUSE_PTHREAD -DPERFORMANCE_RUN=1 -lrt -pthread -DPERFORMANCE_RUN=1 -lrt
Parallel PThreads : 4
Memory location : Please put data memory location here
(e.g. code in flash, data on heap etc)
seedcrc : 0xe9f5
[0]crclist : 0xe714
[1]crclist : 0xe714
[2]crclist : 0xe714
[3]crclist : 0xe714
[0]crcmatrix : 0x1fd7
[1]crcmatrix : 0x1fd7
[2]crcmatrix : 0x1fd7
[3]crcmatrix : 0x1fd7
[0]crcstate : 0x8e3a
[1]crcstate : 0x8e3a
[2]crcstate : 0x8e3a
[3]crcstate : 0x8e3a
[0]crcfinal : 0x33ff
[1]crcfinal : 0x33ff
[2]crcfinal : 0x33ff
[3]crcfinal : 0x33ff
Correct operation validated. See README.md for run and reporting rules.
CoreMark 1.0 : 30977.189524 / GCC8.3.0 -O2 -O2 -DMULTITHREAD=4 -DUSE_PTHREAD -DPERFORMANCE_RUN=1 -lrt -pthread -DPERFORMANCE_RUN=1 -lrt / Heap / 4:PThreads