[Kernel-packages] [Bug 541937] Re: Copying files to USB flash drive is extremely slow
** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/541937 Title: Copying files to USB flash drive is extremely slow Status in “linux” package in Ubuntu: Confirmed Status in “linux” package in Fedora: Unknown Status in openSUSE: Unknown Bug description: Copying files from an internal hard drive to an external USB pandrive is slowing down during this process in Lucid Lynx alpha3 with all the updates until now. Also note that the copying speed is well below the standard rate for high-speed USB devices even in the initial state. As a first look this phenomenon is independent of the filesystem of the USB stick although some effect may be observed. I formatted it either ext3, ntfs or vfat the result was the same. Copying starts around 20-30 MB/sec transfer speed and around 300 MB copied materials the process is slowing down below 15 MB/sec and between 400-500 MB transfered data it is below 10 MB/sec. Reaching the 1GB amount of copied data the speed is only around 2 MB/sec. In case of using vfat file system the transfer speed may go below the 1MB/sec transfer speed at this stage. The number of the files I transfered from my hard drive to a 16GB USB pandrive were 350 with a total size of 5.4GB. In an other experiment (with ntfs usb partition) transferring only one large file having a size of 2.7GB took more than a hour (0.7 MB/sec in average)! ProblemType: Bug AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: zoli 1325 F pulseaudio /dev/snd/pcmC0D0p: zoli 1325 F...m pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'IXP'/'ATI IXP rev 2 with ALC250 at 0xc0003400, irq 17' Mixer name : 'Realtek ALC250 rev 2' Components : 'AC97a:414c4752' Controls : 33 Simple ctrls : 21 Card1.Amixer.info: Card hw:1 'Modem'/'ATI IXP Modem rev 2 at 0xc0003800, irq 17' Mixer name : 'Silicon Laboratory Si3036,8 rev 15' Components : 'AC97m:53494c2f' Controls : 3 Simple ctrls : 3 Card1.Codecs.codec97.0.mc97.1.1: 1-1/0: Silicon Laboratory Si3036,8 rev 15 Extended modem ID: codec=1 LIN1 Modem status : GPIO MREF ADC1 DAC1 PRE(ADC2) PRF(DAC2) PRG(HADC) PRH(HDAC) Line1 rate : 13714Hz Date: Fri Mar 19 13:46:04 2010 DistroRelease: Ubuntu 10.04 HibernationDevice: RESUME=UUID=3ce2aaac-b25e-4863-91a2-0a57ade09901 InstallationMedia: Ubuntu 10.04 Lucid Lynx - Alpha amd64 (20100224.1) Lsusb: Bus 003 Device 003: ID 15d9:0a33 Dexon Mouse Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 018: ID 3538:0059 Power Quotient International Co., Ltd Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Acer, inc. Ferrari 4000 Package: linux-image-2.6.32-16-generic 2.6.32-16.25 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-16-generic root=UUID=4ceac70f-55c9-4a91-baae-aee960ec8114 ro quiet splash ProcEnviron: PATH=(custom, user) LANG=en_US.utf8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.32-16.25-generic Regression: No RelatedPackageVersions: linux-firmware 1.32 Reproducible: Yes RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux TestedUpstream: No Uname: Linux 2.6.32-16-generic x86_64 dmi.bios.date: 03/20/06 dmi.bios.vendor: Acer dmi.bios.version: 3A27 dmi.board.name: Ferrari IV dmi.board.vendor: Acer, Inc. dmi.board.version: Not Applicable dmi.chassis.type: 1 dmi.chassis.vendor: , Inc. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAcer:bvr3A27:bd03/20/06:svnAcer,inc.:pnFerrari4000:pvrNotApplicable:rvnAcer,Inc.:rnFerrariIV:rvrNotApplicable:cvn,Inc.:ct1:cvrN/A: dmi.product.name: Ferrari 4000 dmi.product.version: Not Applicable dmi.sys.vendor: Acer, inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/541937/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1067452] Re: Low speed when transferring files over USB flash drives
** Changed in: linux (Ubuntu) Status: Invalid = Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1067452 Title: Low speed when transferring files over USB flash drives Status in “linux” package in Ubuntu: Confirmed Bug description: Low speed when transferring files over USB 2.0 and USB 3.0. Example USB flash devices with FAT that demonstrates this problem: ID 13fe:4100 Kingston Technology Company Inc. ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) 64MB QDI U2 DISK If the USB drive is not empty, the transferring speed is lower. the bigger the file, the slower the speed. Here are my tests: from HDD to USB (FAT): 1. 450 MB in 4 sec. (USB sitck EMPTY) 112.5 MB/s 2. 450 MB in 52 sec. (USB stick not EMPTY) 8.6 MB/s 3. 735 MB in 26 sec. (USB stick EMPTY) 28.2 MB/s 4. 735 MB in 40 sec. (USB stick not EMPTY) 18.3 MB/s 5. 735 MB in 3 sec. (after formatting USB stick) 245 MB/s 6. 1,5 GB in 3min35 (USB sitck EMPTY) 6.9 MB/s 7. 1,5 GB in 4min31 (USB stick not EMPTY) 5.5 MB/s from HDD to USB (ext4) 1. 450 MB in 1 sec. (USB sitck EMPTY) 450 MB/s 2. 450 MB in 52 sec. (USB sitck not EMPTY) 8.6 MB/s 3. 735 MB in 14 sec. (USB sitck EMPTY) 52.5 MB/s 4. 735 MB in 1min (USB stick not EMPTY) 12.25 MB/s 5. 735 MB in 16 sec. (after formatting USB stick) 45.9 MB/s 5. 1,5 GB in 3min04 (USB sitck EMPTY) 8.1 MB/s 6. 1,5 GB in 5min14 (USB stick not EMPTY) 4.7 MB/s from USB (FAT) to USB (FAT) 1. 735 MB in 10 sec. (USB sitck EMPTY) 73 MB/s 2. 735 MB in 4min (USB stick not EMPTY) 3.0 MB/s I tested the ext3 filesystem and I had the same results. This is not reproducible using USB external HDD with FAT: Bus 002 Device 003: ID 0766:0001 Jess-Link Products Co., Ltd ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-32-generic 3.2.0-32.51 ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30 Uname: Linux 3.2.0-32-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu13 Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: aleksej1843 F pulseaudio Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xdf00 irq 49' Mixer name : 'Intel CougarPoint HDMI' Components : 'HDA:10ec0269,10431ba3,00100100 HDA:80862805,80860101,0010' Controls : 30 Simple ctrls : 14 Date: Tue Oct 16 18:46:30 2012 HibernationDevice: RESUME=UUID=89690659-5cf9-495f-9a95-8615f4f3b144 InstallationMedia: Ubuntu 11.10 Oneiric Ocelot - Release amd64 (20111012) MachineType: ASUSTeK Computer Inc. U36SD ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-32-generic root=UUID=f15fe73f-5542-4724-969b-90222a5cc2e3 ro quiet splash i915.i915_enable_rc6=1 vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.2.0-32-generic N/A linux-backports-modules-3.2.0-32-generic N/A linux-firmware1.79.1 SourcePackage: linux StagingDrivers: mei UpgradeStatus: Upgraded to precise on 2012-05-15 (154 days ago) dmi.bios.date: 07/12/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: U36SD.205 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: U36SD dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrU36SD.205:bd07/12/2011:svnASUSTeKComputerInc.:pnU36SD:pvr1.0:rvnASUSTeKComputerInc.:rnU36SD:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: U36SD dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1067452/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
