目次
文書の過去の版を表示しています。
SanDisk 128GB microSDXC Class10 UHS-I U1 A1 (read 120MB/s)
read_sd_attr.py
$ python3 read_sd_attr.py
===== SD and MMC Block Device Attributes Reader Ver 0.02 =====
device: /sys/block/mmcblk0/device
----------------------------------------
cid: 035344534431323885d7c3db51015ba9\n
csd: 400e00325b590003b8ab7f800a404079\n
scr: 0245804300000000\n
date: 11/2021\n
fwrev: 0x5\n
hwrev: 0x8\n
manfid: 0x000003\n
name: SD128\n
oemid: 0x5344\n ('SD')
prv: None
serial: 0xd7c3db51\n
erase_size: 512\n
preferred_erase_size: 4194304\n
raw_rpmb_size_mult: None
rel_sectors: None
ocr: 0x00200000\n
dsr: 0x404\n
cmdq_en: None
----------------------------------------
オーバークロック前
sdbench.sh
$ sudo ./sdbench.sh CONFIG: default CLOCK : SD Bus: 50.000 MHz, CPU: 1000.000 MHz, CPU Temp: 42.236 ℃, SDRAM: 450 MHz VOLTS : core: 1.3500V, sdram(controller, I/O, physical): 1.2000V, 1.2000V, 1.2250V CORE : 400 MHz(400 MHz), turbo=0 DATA : 512 MB, /root/test.dat HDPARM: ====== Timing O_DIRECT disk reads: 66 MB in 3.01 seconds = 21.90 MB/sec Timing O_DIRECT disk reads: 66 MB in 3.02 seconds = 21.89 MB/sec Timing O_DIRECT disk reads: 66 MB in 3.02 seconds = 21.85 MB/sec WRITE: ===== 536870912 bytes (537 MB, 512 MiB) copied, 32.2294 s, 16.7 MB/s 536870912 bytes (537 MB, 512 MiB) copied, 31.9951 s, 16.8 MB/s 536870912 bytes (537 MB, 512 MiB) copied, 31.5782 s, 17.0 MB/s READ: ==== 536870912 bytes (537 MB, 512 MiB) copied, 23.1221 s, 23.2 MB/s 536870912 bytes (537 MB, 512 MiB) copied, 23.3045 s, 23.0 MB/s 536870912 bytes (537 MB, 512 MiB) copied, 23.1063 s, 23.2 MB/s RESULT (AVG): ============ core_freq turbo sd clock WRITE READ HDPARM 400 0 50.000 MHz 16.03 MB/s 22.09 MB/s 21.88 MB/s microSD card benchmark complete! CPU Temp: 43.850 ℃
microsd-benchmarks.sh
$ sudo ./microsd-benchmarks.sh
オーバークロック後
config.txt の設定 (その1)
- /boot/config.txt
$ sudo nano /boot/config.txt force_turbo=1 dtparam=sd_overclock=100 $ sudo reboot
sdbench.sh
$ sudo ./sdbench.sh
microsd-benchmarks.sh
$ sudo ./microsd-benchmarks.sh
config.txt の設定 (その2)
- /boot/config.txt
$ sudo nano /boot/config.txt #----- Zero OC ----- ##fake_vsync_isr=1 ##framebuffer_swap=0 ##gpu_mem=48 ##init_emmc_clock=100000000 force_turbo=1 ##arm_freq=1150 ##arm_freq=1095 for my other unit with heatsink ##arm_freq=1085 arm_freq=1050 ##gpu_freq=550 for the unit with a heatsink ##gpu_freq=530 gpu_freq=520 ##gpu_freq=300 core_freq=515 over_voltage=2 sdram_freq=533 over_voltage_sdram=1 ##over_voltage_sdram_c=7 ##over_voltage_sdram_i=7 ##over_voltage_sdram_p=8 dtparam=sd_overclock=100
sdbench.sh
$ sudo ./sdbench.sh
microsd-benchmarks.sh
$ sudo ./microsd-benchmarks.sh
