hardware:raspberry_pi:sdcard_overclock:teamgroup_128gb_microsdxc_class10_uhs-i_u3_v30_a1 [ともやん・どっと・ねっと]

この文書は読取専用です。文書のソースを閲覧することは可能ですが、変更はできません。もし変更したい場合は管理者に連絡してください。
====== TeamGroup 128GB microSDXC Class10 UHS-I U3 V30 A1 ======
{{:hardware:sdcard_bench_team_group_128gb_class10_uhs-i_micro_sdxc_001.jpg?100|TeamGroup 128GB microSDXC Class10 UHS-I U3 V30 A1 001}}\\

===== read_sd_attr.py =====
<WRAP mincode_long><code>
$ python3 read_sd_attr.py

===== SD and MMC Block Device Attributes Reader Ver 0.02 =====
device: /sys/block/mmcblk0/device
----------------------------------------
cid: 452d4220202020201014a11ed90149a9\n
csd: 400e00325b590003ae077f800a400001\n
scr: 0245844300000000\n
date: 09/2020\n
fwrev: 0x0\n
hwrev: 0x1\n
manfid: 0x000045\n
name:      \n
oemid: 0x2d42\n ('-B')
prv: None
serial: 0x14a11ed9\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
----------------------------------------
</code></WRAP>

===== オーバークロック前 =====

==== sdbench.sh ====
<WRAP mincode_long><code>
$ sudo ./sdbench.sh
CONFIG:
CLOCK : 50.000 MHz
CORE  : 400 MHz, turbo=0
DATA  : 512 MB, /root/test.dat

HDPARM:
======
 Timing O_DIRECT disk reads:  66 MB in  3.02 seconds =  21.86 MB/sec
 Timing O_DIRECT disk reads:  66 MB in  3.07 seconds =  21.47 MB/sec
 Timing O_DIRECT disk reads:  66 MB in  3.08 seconds =  21.45 MB/sec

WRITE:
=====
536870912 bytes (537 MB, 512 MiB) copied, 47.4111 s, 11.3 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 45.7475 s, 11.7 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 45.4855 s, 11.8 MB/s

READ:
====
536870912 bytes (537 MB, 512 MiB) copied, 23.6137 s, 22.7 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 23.5843 s, 22.8 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 23.2095 s, 23.1 MB/s

RESULT (AVG):
============
core_freq   turbo     sd clock       WRITE        READ        HDPARM
   400        0      50.000 MHz   11.08 MB/s   21.82 MB/s   21.59 MB/s
</code></WRAP>

==== microsd-benchmarks.sh ====
<WRAP mincode_long><code>
$ sudo ./microsd-benchmarks.sh

Raspberry Pi Dramble microSD benchmarks
microSD clock: 50.000 MHz

Running hdparm test...

/dev/mmcblk0:
 Timing buffered disk reads:  68 MB in  3.06 seconds =  22.20 MB/sec

Running dd test...

51200+0 レコード入力
51200+0 レコード出力
419430400 bytes (419 MB, 400 MiB) copied, 35.0934 s, 12.0 MB/s

Running iozone test...
        Iozone: Performance Test of File I/O
                Version $Revision: 3.492 $
                Compiled for 32 bit mode.
                Build: linux-arm

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
                     Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
                     Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
                     Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
                     Vangel Bojaxhi, Ben England, Vikentsi Lapa,
                     Alexey Skidanov, Sudhir Kumar.

        Run began: Fri Mar 11 14:14:26 2022

        Include fsync in write timing
        O_DIRECT feature enabled
        Auto Mode
        File size set to 102400 kB
        Record Size 4 kB
        Command line used: ./iozone -e -I -a -s 100M -r 4k -i 0 -i 1 -i 2
        Output is in kBytes/sec
        Time Resolution = 0.000001 seconds.
        Processor cache size set to 1024 kBytes.
        Processor cache line size set to 32 bytes.
        File stride size set to 17 * record size.
                                                              random    random     bkwd    record    stride

              kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
          102400       4     2101     2477     5555     5553     4720     2329


iozone test complete.

microSD card benchmark complete!
</code></WRAP>

===== オーバークロック後 =====

==== 設定値割り出し ====
<WRAP mintbl>
^  core_freq (MHz)  ^  dtparam=sd_overclock (MHz)  ^  actual clock (MHz)  ^  judge  ^  benchmark  ^
|  532 |  100 (=532/5.320) |  88.667 (=532/5.999) |  **OK**  |  **OK**  |
|  515 |  100 (=515/5.150) |  85.000 (=515/6.058) |  **OK**  |  **OK**  |
|  510 |  100 (=510/5.100) |  85.000 (=510/6.000) |  **OK**  |  **OK**  |
|  500 |  125 (=500/4.000) |  100.000 (=500/5.000) |  <wrap em>NG</wrap>  |  **OK**  |
|  500 |  120 (=500/4.166) |  71.429 (=500/6.999) |  <wrap em>NG</wrap>  |  -  |
|  500 |  100 (=500/5.000) |  71.429 (=500/5.999) |  <wrap em>NG</wrap>  |  **OK**  |
|  480 |  120 (=480/4.000) |  83.333 (=480/5.760) |  <wrap em>NG</wrap>  |  -  |
</WRAP>
==== config.txt の設定 (force_turbo=1,dtparam=sd_overclock=100) ====
<WRAP mincode><code autoconf /boot/config.txt>
$ sudo nano /boot/config.txt

force_turbo=1
dtparam=sd_overclock=100

$ sudo reboot
</code></WRAP>

==== sdbench.sh ====
<WRAP mincode_long><code>
$ sudo ./sdbench.sh
CONFIG: dtparam=sd_overclock=100
CLOCK : 80.000 MHz
CORE  : 400 MHz, turbo=1
DATA  : 512 MB, /root/test.dat

HDPARM:
======
 Timing O_DIRECT disk reads: 102 MB in  3.01 seconds =  33.88 MB/sec
 Timing O_DIRECT disk reads: 102 MB in  3.01 seconds =  33.84 MB/sec
 Timing O_DIRECT disk reads: 102 MB in  3.02 seconds =  33.77 MB/sec

WRITE:
=====
536870912 bytes (537 MB, 512 MiB) copied, 38.6571 s, 13.9 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 37.812 s, 14.2 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 38.6272 s, 13.9 MB/s

READ:
====
536870912 bytes (537 MB, 512 MiB) copied, 14.875 s, 36.1 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 14.8874 s, 36.1 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 14.8763 s, 36.1 MB/s

RESULT (AVG):
============
core_freq   turbo     sd clock       WRITE        READ        HDPARM
   400        1      80.000 MHz   13.34 MB/s   34.41 MB/s   33.85 MB/s
</code></WRAP>

==== microsd-benchmarks.sh ====
<WRAP mincode_long><code>
$ sudo ./microsd-benchmarks.sh

Raspberry Pi Dramble microSD benchmarks
microSD clock: 80.000 MHz

Running hdparm test...

/dev/mmcblk0:
 Timing buffered disk reads: 106 MB in  3.04 seconds =  34.83 MB/sec

Running dd test...

51200+0 レコード入力
51200+0 レコード出力
419430400 bytes (419 MB, 400 MiB) copied, 29.5035 s, 14.2 MB/s

Running iozone test...
        Iozone: Performance Test of File I/O
                Version $Revision: 3.492 $
                Compiled for 32 bit mode.
                Build: linux-arm

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
                     Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
                     Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
                     Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
                     Vangel Bojaxhi, Ben England, Vikentsi Lapa,
                     Alexey Skidanov, Sudhir Kumar.

        Run began: Sun Mar 13 03:09:21 2022

        Include fsync in write timing
        O_DIRECT feature enabled
        Auto Mode
        File size set to 102400 kB
        Record Size 4 kB
        Command line used: ./iozone -e -I -a -s 100M -r 4k -i 0 -i 1 -i 2
        Output is in kBytes/sec
        Time Resolution = 0.000001 seconds.
        Processor cache size set to 1024 kBytes.
        Processor cache line size set to 32 bytes.
        File stride size set to 17 * record size.
                                                              random    random     bkwd    record    stride

              kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
          102400       4     2163     2728     6117     6115     5164     2677


iozone test complete.

microSD card benchmark complete!
</code></WRAP>

==== config.txt の設定 (force_turbo=1,core_freq=532,sd_overclock=100) ====
<WRAP mincode><code autoconf /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=532
over_voltage=3

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
</code></WRAP>

==== sdbench.sh ====
<WRAP mincode_long><code>
$ sudo ./sdbench.sh

CONFIG: core_freq=532,dtparam=sd_overclock=100
CLOCK : SD Bus: 88.667 MHz, CPU: 1050.110 MHz, CPU Temp: 43.850 ℃, SDRAM: 533 MHz
VOLTS : core: 1.4000V, sdram(controller, I/O, physical): 1.2250V, 1.2250V, 1.2250V
CORE  : 532 MHz(532 MHz), turbo=1
DATA  : 512 MB, /root/test.dat

HDPARM:
======
 Timing O_DIRECT disk reads: 114 MB in  3.05 seconds =  37.42 MB/sec
 Timing O_DIRECT disk reads: 112 MB in  3.00 seconds =  37.33 MB/sec
 Timing O_DIRECT disk reads: 110 MB in  3.01 seconds =  36.55 MB/sec

WRITE:
=====
536870912 bytes (537 MB, 512 MiB) copied, 38.5323 s, 13.9 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 37.3526 s, 14.4 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 37.5281 s, 14.3 MB/s

READ:
====
536870912 bytes (537 MB, 512 MiB) copied, 13.7391 s, 39.1 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 13.6126 s, 39.4 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 13.6679 s, 39.3 MB/s

RESULT (AVG):
============
core_freq   turbo     sd clock       WRITE        READ        HDPARM
   532        1      88.667 MHz   13.55 MB/s   37.45 MB/s   37.08 MB/s

microSD card benchmark complete!
CPU Temp: 50.306 ℃
</code></WRAP>

==== microsd-benchmarks.sh ====
<WRAP mincode_long><code>
$ sudo ./microsd-benchmarks.sh

Raspberry Pi Dramble microSD benchmarks
microSD clock: 88.667 MHz

Running hdparm test...

/dev/mmcblk0:
 Timing buffered disk reads: 114 MB in  3.03 seconds =  37.57 MB/sec

Running dd test...

51200+0 レコード入力
51200+0 レコード出力
419430400 bytes (419 MB, 400 MiB) copied, 27.402 s, 15.3 MB/s

Running iozone test...
        Iozone: Performance Test of File I/O
                Version $Revision: 3.492 $
                Compiled for 32 bit mode.
                Build: linux-arm

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
                     Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
                     Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
                     Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
                     Vangel Bojaxhi, Ben England, Vikentsi Lapa,
                     Alexey Skidanov, Sudhir Kumar.

        Run began: Fri Mar 25 17:15:00 2022

        Include fsync in write timing
        O_DIRECT feature enabled
        Auto Mode
        File size set to 102400 kB
        Record Size 4 kB
        Command line used: ./iozone -e -I -a -s 100M -r 4k -i 0 -i 1 -i 2
        Output is in kBytes/sec
        Time Resolution = 0.000001 seconds.
        Processor cache size set to 1024 kBytes.
        Processor cache line size set to 32 bytes.
        File stride size set to 17 * record size.
                                                              random    random     bkwd    record    stride

              kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
          102400       4     2339     2740     6694     6699     5499     2873


iozone test complete.

microSD card benchmark complete!
</code></WRAP>

==== config.txt の設定 (force_turbo=1,core_freq=515,sd_overclock=100) ====
<WRAP mincode><code autoconf /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
</code></WRAP>

==== sdbench.sh ====
<WRAP mincode_long><code>
$ sudo ./sdbench.sh
CONFIG: dtparam=sd_overclock=100
CLOCK : 85.833 MHz
CORE  : 515 MHz, turbo=1
DATA  : 512 MB, /root/test.dat

HDPARM:
======
 Timing O_DIRECT disk reads: 108 MB in  3.03 seconds =  35.69 MB/sec
 Timing O_DIRECT disk reads: 108 MB in  3.03 seconds =  35.68 MB/sec
 Timing O_DIRECT disk reads: 108 MB in  3.03 seconds =  35.69 MB/sec

WRITE:
=====
536870912 bytes (537 MB, 512 MiB) copied, 36.1898 s, 14.8 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 35.5582 s, 15.1 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 35.166 s, 15.3 MB/s

READ:
====
536870912 bytes (537 MB, 512 MiB) copied, 13.9071 s, 38.6 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 13.9155 s, 38.6 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 13.909 s, 38.6 MB/s

RESULT (AVG):
============
core_freq   turbo     sd clock       WRITE        READ        HDPARM
   515        1      85.833 MHz   14.37 MB/s   36.81 MB/s   35.64 MB/s
</code></WRAP>

==== microsd-benchmarks.sh ====
<WRAP mincode_long><code>
$ sudo ./microsd-benchmarks.sh

Raspberry Pi Dramble microSD benchmarks
microSD clock: 85.833 MHz

Running hdparm test...

/dev/mmcblk0:
 Timing buffered disk reads: 112 MB in  3.00 seconds =  37.28 MB/sec

Running dd test...

51200+0 レコード入力
51200+0 レコード出力
419430400 bytes (419 MB, 400 MiB) copied, 27.5716 s, 15.2 MB/s

Running iozone test...
        Iozone: Performance Test of File I/O
                Version $Revision: 3.492 $
                Compiled for 32 bit mode.
                Build: linux-arm

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
                     Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
                     Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
                     Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
                     Vangel Bojaxhi, Ben England, Vikentsi Lapa,
                     Alexey Skidanov, Sudhir Kumar.

        Run began: Sun Mar 13 03:51:29 2022

        Include fsync in write timing
        O_DIRECT feature enabled
        Auto Mode
        File size set to 102400 kB
        Record Size 4 kB
        Command line used: ./iozone -e -I -a -s 100M -r 4k -i 0 -i 1 -i 2
        Output is in kBytes/sec
        Time Resolution = 0.000001 seconds.
        Processor cache size set to 1024 kBytes.
        Processor cache line size set to 32 bytes.
        File stride size set to 17 * record size.
                                                              random    random     bkwd    record    stride

              kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
          102400       4     2310     2870     6401     6407     5394     2825


iozone test complete.

microSD card benchmark complete!
</code></WRAP>

==== config.txt の設定 (force_turbo=1,core_freq=510,sd_overclock=100) ====
<WRAP mincode><code autoconf /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=510
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
</code></WRAP>

==== sdbench.sh ====
<WRAP mincode_long><code>
$ sudo ./sdbench.sh

CONFIG: core_freq=510,dtparam=sd_overclock=100
CLOCK : SD Bus: 85.000 MHz, CPU: 1050.110 MHz, CPU Temp: 42.774 ℃, SDRAM: 533 MHz
VOLTS : core: 1.4000V, sdram(controller, I/O, physical): 1.2250V, 1.2250V, 1.2250V
CORE  : 510 MHz(510 MHz), turbo=1
DATA  : 512 MB, /root/test.dat

HDPARM:
======
 Timing O_DIRECT disk reads: 108 MB in  3.03 seconds =  35.66 MB/sec
 Timing O_DIRECT disk reads: 108 MB in  3.04 seconds =  35.58 MB/sec
 Timing O_DIRECT disk reads: 108 MB in  3.03 seconds =  35.65 MB/sec

WRITE:
=====
536870912 bytes (537 MB, 512 MiB) copied, 37.2302 s, 14.4 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 37.2802 s, 14.4 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 38.8198 s, 13.8 MB/s

READ:
====
536870912 bytes (537 MB, 512 MiB) copied, 14.3526 s, 37.4 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 13.9952 s, 38.4 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 13.9877 s, 38.4 MB/s

RESULT (AVG):
============
core_freq   turbo     sd clock       WRITE        READ        HDPARM
   510        1      85.000 MHz   13.56 MB/s   36.28 MB/s   35.60 MB/s

microSD card benchmark complete!
CPU Temp: 48.154 ℃
</code></WRAP>

==== microsd-benchmarks.sh ====
<WRAP mincode_long><code>
$ sudo ./microsd-benchmarks.sh

Raspberry Pi Dramble microSD benchmarks
microSD clock: 85.000 MHz

Running hdparm test...

/dev/mmcblk0:
 Timing buffered disk reads: 112 MB in  3.05 seconds =  36.75 MB/sec

Running dd test...

51200+0 レコード入力
51200+0 レコード出力
419430400 bytes (419 MB, 400 MiB) copied, 27.5677 s, 15.2 MB/s

Running iozone test...
        Iozone: Performance Test of File I/O
                Version $Revision: 3.492 $
                Compiled for 32 bit mode.
                Build: linux-arm

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
                     Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
                     Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
                     Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
                     Vangel Bojaxhi, Ben England, Vikentsi Lapa,
                     Alexey Skidanov, Sudhir Kumar.

        Run began: Fri Mar 25 15:55:12 2022

        Include fsync in write timing
        O_DIRECT feature enabled
        Auto Mode
        File size set to 102400 kB
        Record Size 4 kB
        Command line used: ./iozone -e -I -a -s 100M -r 4k -i 0 -i 1 -i 2
        Output is in kBytes/sec
        Time Resolution = 0.000001 seconds.
        Processor cache size set to 1024 kBytes.
        Processor cache line size set to 32 bytes.
        File stride size set to 17 * record size.
                                                              random    random     bkwd    record    stride

              kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
          102400       4     2322     2910     6650     6649     5524     2885


iozone test complete.

microSD card benchmark complete!
</code></WRAP>

==== config.txt の設定 (force_turbo=1,core_freq=500,sd_overclock=100) ====
<WRAP mincode><code autoconf /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=500
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
</code></WRAP>

==== sdbench.sh ====
<WRAP mincode_long><code>
$ sudo ./sdbench.sh

CONFIG: core_freq=500,dtparam=sd_overclock=100
CLOCK : SD Bus: 71.429 MHz, CPU: 1050.110 MHz, CPU Temp: 40.622 ℃, SDRAM: 533 MHz
VOLTS : core: 1.4000V, sdram(controller, I/O, physical): 1.2250V, 1.2250V, 1.2250V
CORE  : 500 MHz(500 MHz), turbo=1
DATA  : 512 MB, /root/test.dat

HDPARM:
======
 Timing O_DIRECT disk reads:  92 MB in  3.00 seconds =  30.62 MB/sec
 Timing O_DIRECT disk reads:  92 MB in  3.01 seconds =  30.53 MB/sec
 Timing O_DIRECT disk reads:  92 MB in  3.02 seconds =  30.49 MB/sec

WRITE:
=====
536870912 bytes (537 MB, 512 MiB) copied, 41.0772 s, 13.1 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 38.1607 s, 14.1 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 40.9322 s, 13.1 MB/s

READ:
====
536870912 bytes (537 MB, 512 MiB) copied, 16.6283 s, 32.3 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 16.9448 s, 31.7 MB/s
536870912 bytes (537 MB, 512 MiB) copied, 16.3506 s, 32.8 MB/s

RESULT (AVG):
============
core_freq   turbo     sd clock       WRITE        READ        HDPARM
   500        1      71.429 MHz   12.80 MB/s   30.77 MB/s   30.56 MB/s

microSD card benchmark complete!
CPU Temp: 47.616 ℃
</code></WRAP>

==== microsd-benchmarks.sh ====
<WRAP mincode_long><code>
$ sudo ./microsd-benchmarks.sh

Raspberry Pi Dramble microSD benchmarks
microSD clock: 71.429 MHz

Running hdparm test...

/dev/mmcblk0:
 Timing buffered disk reads:  96 MB in  3.05 seconds =  31.43 MB/sec

Running dd test...

51200+0 レコード入力
51200+0 レコード出力
419430400 bytes (419 MB, 400 MiB) copied, 28.3098 s, 14.8 MB/s

Running iozone test...
        Iozone: Performance Test of File I/O
                Version $Revision: 3.492 $
                Compiled for 32 bit mode.
                Build: linux-arm

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
                     Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
                     Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
                     Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer,
                     Vangel Bojaxhi, Ben England, Vikentsi Lapa,
                     Alexey Skidanov, Sudhir Kumar.

        Run began: Fri Mar 25 15:12:18 2022

        Include fsync in write timing
        O_DIRECT feature enabled
        Auto Mode
        File size set to 102400 kB
        Record Size 4 kB
        Command line used: ./iozone -e -I -a -s 100M -r 4k -i 0 -i 1 -i 2
        Output is in kBytes/sec
        Time Resolution = 0.000001 seconds.
        Processor cache size set to 1024 kBytes.
        Processor cache line size set to 32 bytes.
        File stride size set to 17 * record size.
                                                              random    random     bkwd    record    stride

              kB  reclen    write  rewrite    read    reread    read     write     read   rewrite      read   fwrite frewrite    fread  freread
          102400       4     2299     2873     6374     6375     5340     2844


iozone test complete.

microSD card benchmark complete!
</code></WRAP>