Slow I/O on Pi

less than 1 minute read

When transmission is working, the I/O on my Pi is horribly slow. I checked it with hdparm, both external disks look fine:

/dev/sda:
Timing cached reads: 256 MB in 2.01 seconds = 127.30 MB/sec
Timing buffered disk reads: 68 MB in 3.09 seconds = 22.01 MB/sec

/dev/sdb:
Timing cached reads: 252 MB in 2.01 seconds = 125.50 MB/sec
Timing buffered disk reads: 68 MB in 3.08 seconds = 22.06 MB/sec

Need some more study on this…

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