I see the same behaviour without ethernet plugged in, and pinging the panda via wlan0. Is that chip too on the same USB controller?
5x speed increase on write when pinging with -i.0001 jani@panda:~$ time dd if=/dev/zero of=alma bs=4M count=1024 1024+0 records in 1024+0 records out 4294967296 bytes (4.3 GB) copied, 1451.47 s, 3.0 MB/s real 25m7.935s user 0m0.023s sys 1m24.266s jani@panda:~$ time dd if=/dev/zero of=alma2 bs=4M count=1024 1024+0 records in 1024+0 records out 4294967296 bytes (4.3 GB) copied, 267.908 s, 16.0 MB/s real 4m30.361s user 0m0.016s sys 1m15.844s -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/709245 Title: panda: USB disk IO slow To manage notifications about this bug go to: https://bugs.launchpad.net/linaro-ubuntu/+bug/709245/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
