SD card speed

[Marc van Woerkom]

Hi,

just want to ask for your experiences:

I have bought a Hama USB 2.0 Card Reader 35 in 1 and attached it to my
Notebook running FreeBSD 6.1-RC.

With this I use a Panasonic 512 MB "high speed" SD Card.

Reading speed seems ok, iostat displays about 2,8 Mbyte/s reading 
transfer rate:

      tty             ad0              da2             cpu
 tin tout  KB/t xfrs   MB   KB/t xfrs   MB  us ni sy in id
 128  101 36.00   2  0.07   8.00 363  2.84   7  0  4  5 84
 168  191 17.70  33  0.57   7.99 361  2.82   9  0  3  5 83
 360  115  0.00   0  0.00   7.99 359  2.80  10  0  6  4 80
 464  194 64.00   1  0.06   8.00 358  2.80   9  0  5  6 80
 112   94  0.00   0  0.00   7.99 362  2.82   9  0  4  4 84
 112  215  8.38  21  0.17   7.99 360  2.81   9  0  3  3 84


But writing speed seems slow to me, I measure about 56 to 64 kbyte/s 
transfer
rate only:
 
      tty             ad0              da2             cpu
 tin tout  KB/t xfrs   MB   KB/t xfrs   MB  us ni sy in id
   2  110 16.00   1  0.02   8.00   7  0.05  19  0  4  2 75
   9  209 16.00   1  0.02   8.00   7  0.05  17  0  2  1 80
   8   94  8.00   1  0.01   8.00   7  0.05  19  0  2  1 78
  12  110 40.00   2  0.08   8.00   8  0.06  28  0  2  2 68
  10  113  0.00   0  0.00   8.00   7  0.05  16  0  2  2 81
  11  113 16.00   5  0.08   8.00   7  0.05  17  0  5  0 78

Is that ok?
Or does this card slug? Or is something ill-configured?

Regards,
Marc