iPod Nano [Second-Generation] (#2): Slower transfer speeds than predecessor
iPod Nano [Second-Generation] (#2): Slower transfer speeds than predecessor
We've received multiple reports indicating that the iPod nano second-generation delivers much slower throughput for transfers of music and other data than the first-generation nano.
MacFixIt reader David writes:
"I just compared a 1st and 2nd generation by running a basic file write test. I generated a 1GB file of random data on both nano's from the shell, both had journaling disabled. Here's the result:
- iPod nano first-generation: 1073741824 bytes transferred in 135.129421 secs (7946025 bytes/sec) dd if=/dev/urandom of=data bs=1m count=1024 0.01s user 124.54s system 92% cpu 2:15.17 total
- iPod nano second-generation:1073741824 bytes transferred in 245.404477 secs (4375396 bytes/sec) dd if=/dev/urandom of=data bs=1m count=1024 0.01s user 121.38s system 49% cpu 4:05.74 total
(the first-generation iPod took 135 seconds to transfer the file, while the second-generation iPod took 245 seconds).
"It shows that the new nano is giving much slower transfer speeds than the first generation, perhaps the downside of the new battery runtime."
The iPod nano (second-generation) uses different chips from its predecessor, as reported by iLounge, possibly accounting for the dramatic difference in transfer speeds.
If you are experiencing a similar issue, please let us know.
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