Re: Speed Problem Copying Files
[..]
> hdparm -tT /dev/sda
> /dev/sda:
> Timing cached reads: 13348 MB in 2.00 seconds = 6683.42 MB/sec
> Timing buffered disk reads: 1014 MB in 3.00 seconds = 337.72 MB/sec
>
> iotop -o (for rsync and cp)
> Total DISK READ : 0.00 B/s | Total DISK WRITE : 476.15 K/s
> Actual DISK READ: 0.00 B/s | Actual DISK WRITE: 487.86 K/s
> TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
> 19531 be/4 root 0.00 B/s 476.15 K/s 0.00 % 99.24 % rsync
> --info=progress2 /daten/testfile /daten/testfile2
>
> iotop -o (for dd)
> Total DISK READ : 0.00 B/s | Total DISK WRITE : 297.68 M/s
> Actual DISK READ: 0.00 B/s | Actual DISK WRITE: 297.68 M/s
> TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
> 19557 be/4 root 0.00 B/s 297.68 M/s 0.00 % 99.99 % dd
> if=/dev/zero of=/daten/testfile bs=1G count=10 oflag=direct
Show us the 'dd if=/daten/testfile bs=1G oflag=direct of=/dev/null', please.
If this is as slow as this ~480k/s above, check your disk's health status. Like with smartmontools or some disk-utility software.
Martin
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