And the output of the speed test Linux adrian-PC 3.2.0-2-amd64 #1 SMP Tue Mar 20 18:36:37 UTC 2012 x86_64 GNU/Linux
writing: 1024+0 registros leídos 1024+0 registros escritos 102400000 bytes (102 MB) copiados, 0,315309 s, 325 MB/s ./script: línea 22: /proc/sys/vm/drop_caches: Permiso denegado reading: 1024+0 registros leídos 1024+0 registros escritos 102400000 bytes (102 MB) copiados, 0,0303001 s, 3,4 GB/s Anyway, I'll test it under Windows 2012/4/2 Dmole <elatl...@gmail.com> > USB 1 is 001.5 MB/s > USB 2 is 060.0 MB/s > USB 3 is 625.0 MB/s > > adri58 is getting 5.3 MB/s, I would bet that is the max speed of his > device. > But if not please post the output of a disk speed testing tool from some > other OS. > > Speed tests showing how slow flash drives are: > > > > --------------------------------------------------------------------------------------------------------------------------- > --flash fat32 drive > > Darwin imac 11.3.0 Darwin Kernel Version 11.3.0: Thu Jan 12 18:47:41 PST > 2012; root:xnu-1699.24.23~1/RELEASE_X86_64 x86_64 > > writing: > 1024+0 records in > 1024+0 records out > 102400000 bytes transferred in 32.315127 secs (3168795 bytes/sec) > > reading: > 1024+0 records in > 1024+0 records out > 102400000 bytes transferred in 3.597781 secs (28461989 bytes/sec) > > > --------------------------------------------------------------------------------------------------------------------------- > --flash fat32 drive > > Linux ubuntu 3.2.0-20-generic-pae #33-Ubuntu SMP Tue Mar 27 17:05:18 UTC > 2012 i686 i686 i386 GNU/Linux > > writing: > 1024+0 records in > 1024+0 records out > 102400000 bytes (102 MB) copied, 47.9621 s, 2.1 MB/s > > reading: > 1024+0 records in > 1024+0 records out > 102400000 bytes (102 MB) copied, 3.9149 s, 26.2 MB/s > > > --------------------------------------------------------------------------------------------------------------------------- > --sata ext4 drive > > Linux ubuntu 2.6.32-39-generic #86-Ubuntu SMP Mon Feb 13 21:47:32 UTC > 2012 i686 GNU/Linux > > writing: > 1024+0 records in > 1024+0 records out > 102400000 bytes (102 MB) copied, 0.759231 s, 135 MB/s > > reading: > 1024+0 records in > 1024+0 records out > 102400000 bytes (102 MB) copied, 1.74171 s, 58.8 MB/s > > > > --------------------------------------------------------------------------------------------------------------------------- > --usb ntfs drive > > Linux ubuntu 2.6.32-39-generic #86-Ubuntu SMP Mon Feb 13 21:47:32 UTC > 2012 i686 GNU/Linux > > writing: > 1024+0 records in > 1024+0 records out > 102400000 bytes (102 MB) copied, 3.08867 s, 33.2 MB/s > > reading: > 1024+0 records in > 1024+0 records out > 102400000 bytes (102 MB) copied, 3.27496 s, 31.3 MB/s > > > --------------------------------------------------------------------------------------------------------------------------- > --3 usb lvm dm_crypt ext4 drives (dm_crypt is messing with the write speed > here) > > Linux ubuntu 2.6.32-39-generic #86-Ubuntu SMP Mon Feb 13 21:47:32 UTC > 2012 i686 GNU/Linux > > writing: > 1024+0 records in > 1024+0 records out > 102400000 bytes (102 MB) copied, 0.463585 s, 221 MB/s > > reading: > 1024+0 records in > 1024+0 records out > 102400000 bytes (102 MB) copied, 3.04551 s, 33.6 MB/s > > > > --------------------------------------------------------------------------------------------------------------------------- > --the test used: > > #!/bin/bash > > # > # test_drive_speed.sh > # > > OUT=./file1G.tmp > uname -a > echo "spin you right round" >$OUT; > sleep 1 > echo -e "\nwriting:" > if [ "$1" == "-u" ]; then > dd if=/dev/urandom of=/dev/shm/$OUT bs=100000 count=1024 >/dev/null > 2>&1 > dd if=/dev/shm/$OUT of=$OUT bs=100000 count=1024 > rm /dev/shm/$OUT; > else > dd if=/dev/zero of=$OUT bs=100000 count=1024 > fi > sync > W=$(which purge); > if [ "$W" == "" ] ; then > sudo echo 3 > /proc/sys/vm/drop_caches; > else > purge; > fi > sleep 1 > echo -e "\nreading:" > dd if=$OUT of=/dev/null bs=100000 count=1024 > rm $OUT; > > -- > You received this bug notification because you are subscribed to a > duplicate bug report (477843). > https://bugs.launchpad.net/bugs/500069 > > Title: > USB file transfer causes system freezes; ops take hours instead of > minutes > > Status in The Linux Kernel: > Confirmed > Status in “linux” package in Ubuntu: > Triaged > Status in “linux” package in Fedora: > Unknown > > Bug description: > USB Drive is a MP3 Player 2GB > > sbec@Diamant:~$ lsusb > Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 003 Device 002: ID 046d:c50e Logitech, Inc. MX-1000 Cordless Mouse > Receiver > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > Bus 001 Device 004: ID 0402:5661 ALi Corp. > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > sbec@Diamant:~$ > > Linux Diamant 2.6.31-15-generic #50-Ubuntu SMP Tue Nov 10 14:54:29 UTC > 2009 i686 GNU/Linux > Ubuntu 2.6.31-15.50-generic > > to test, i issued dd command: > dd if=/dev/zero of=/media/usb-disk/test-file bs=32 > > while dd is running i run dstat.... this is in the log file attached. > > other logs are also in the tar.gz file... > > there is a huge USB performance Bug report #1972262. this Report is > something simular > > To manage notifications about this bug go to: > https://bugs.launchpad.net/linux/+bug/500069/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/500069 Title: USB file transfer causes system freezes; ops take hours instead of minutes To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/500069/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
