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
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