jbeale wrote: ↑
Tue Jul 02, 2019 5:21 pm
morphious66 wrote: ↑
Tue Jul 02, 2019 4:23 pm
Can some one with a PI 4 go to the command line interface and run the command to test the MHZ speed on the MicroSD bus
Hello morphious66 : Is there a good reason for your code to need to run with "sudo"? I suspect not everyone is (or should be) comfortable downloading and running an unknown script in that way.
Hi, Its not my code, it is code from another tread https://www.raspberrypi.org/forums/view ... 3&t=140461
it is a script to test the SD speed. My current Pi 3 results looks like this:
Mod: removed insecure link
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2227 100 2227 0 0 1296 0 0:00:01 0:00:01 --:--:-- 1297
Raspberry Pi Dramble microSD benchmarks
microSD clock: 100.000 MHz
Running hdparm test...
Timing buffered disk reads: 96 MB in 3.03 seconds = 31.66 MB/sec
Running dd test...
51200+0 records in
51200+0 records out
419430400 bytes (419 MB) copied, 69.3182 s, 6.1 MB/s
Running iozone test...
Iozone: Performance Test of File I/O
Version $Revision: 3.434 $
Compiled for 32 bit mode.
Run began: Tue Jul 2 09:01:45 2019
Include fsync in write timing
O_DIRECT feature enabled
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 1392 1822 6237 6287 5652 984
iozone test complete.
microSD card benchmark complete!