Debian Configuration :: Extremely Slow Transfer Rate On Flash Disk ?
Jul 12, 2011
Same computer and flash. Two results on different OS:
Write speed under debian: 0.4 MB/s
Write speed under Windows: 6.6 MB/s
From what i've been reading on the net I guess it's something to do with the mount - sync option.
I've notice that there are couple of workarounds but all of them are pretty tedious.
Is there any simple (GUI - one/two clicks) tool that allow to mount/unmount flash disk easily using the correct options?
I'm using Squeeze 6.0.2 (Kernel 2.6.32-5-amd64), gnome 2.30.2
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Jul 15, 2011
Same computer and flash. Two results on different OS:
Write speed under debian: 0.4 MB/s
Write speed under Windows: 6.6 MB/s
From what i've been reading on the net I guess it's something to do with the mount - sync option. I've notice that there are couple of workarounds but all of them are pretty tedious.
Is there any simple (GUI - one/two clicks) tool that allow to mount/unmount flash disk easily using the correct options?
I'm using Squeeze 6.0.2 (Kernel 2.6.32-5-amd64), gnome 2.30.2
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May 11, 2011
Iam using public ftp server,the server file transfer rate is very very slow & the server is also very slow,In which way can i check the server to make it fast,can any one give sugession on this.
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Oct 3, 2010
I would like to know if it is normal to experience 10MB/s data transfer rates during copying between partitions on my local hard drives (Toshiba 250GB 5400rpm SATA) while having three times faster (30MB/s) transfer rates between local partitions and USB drives (Kingston 8GB).
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Mar 2, 2011
I am struggling trying to understand the reason for a fairly slow data transfer rate between two machines. ( tried point to point and also via a 1 gb switch )
One is nfs/http/ftp server ( with raid1 and lvm on top ), the other one my desktop pc. Both OS with default options, no changes to kernel in proc or other sort of thing.
Hardware is full recognized and perfectly working: The server has 4gb ram, Intel Core 2 Duo CPUE6850 @ 3.00GHz, 1000Mb/s NIC card and Lucid 10.04 64 bit, 250Giga Hard disk. The client has 3gb ram, Intel Core 2 CPU 6320 @ 1.86GHz, 1000Mb/s NIC card and Ubuntu Maverick 32bit , 150Gb Hard disk.
Raw data is good:
gettons@gettons-desktop:~$ iperf -c MYSERVER
------------------------------------------------------------
Client connecting to MYSERVER, TCP port 5001
[Code].....
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Apr 7, 2010
I recently purchased an iRiver P7 media player which I am using with Rhythmbox under Ubuntu 9.04. The transfer speed when uploading files to the player is phenomenally slow - the first 50 or so MB reported virtually instantly then the speed immediately drops to about 12-15KB/sec yes KB/sec so a 3-400MB video file takes hours to transfer to the player. This happens with the internal memory and the added memory (SD card) too, althoufg it is faster ror the SD card. No other devices have ever behaved like this on this system (and I have used 2 different Creative players, a different iRiver player and numerous memory sticks). The computer is dual booting with windows (for once that was useful) and under windows it doesn't happen, the speed is as expected so it isn't the hardware. I don't want to have to resort to damned windoze just for this. dmesg after plugging in the player shows it identifying both the internal storage and the added SD card but I don't understand the rest of it:
[code]....
This last message gets repeated lots of times, and during transfers it seems to be issued continuously and I suppose this is why the system is so slow because it is always retrying loads of times before a success.
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Feb 12, 2016
I'm having a strange problem with data transfers between systems. I have a file server + my desktop. Both are running Debian 8.3. I have a samba share running on the file server and I mount the shares on my desktop on boot via /etc/fstab
When I copy a file using the nautilus from my home folder (on my HDD) on my desktop to the mounted network location, my transfers start out at gigabit speeds 80MB/s-90MB/s for a couple seconds and then drop down to about 8MB/s
But when I terminate the transfer and then use scp to transfer the same file, I get consistent gigabit speed throughout the transfer. I am not sure what is going on.
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Apr 17, 2011
Whenever I transfer a movie into my 16GB USB flash disk, my whole system becomes windows-like and unusable!
When i drag the file(s) into the USB disk folder, it starts out fine and pretty darn fast (25mb/sec) then slowly decreases until it's unbearably slow (3m/sec) and as a side effect my whole system starts deteriorating. I basically have to wait for the file to finish transferring before i can use my desktop again!
This has been happening with every version since Karmic (all 64bit)- I put up with it because I don't use the USB stick that much.. but lately it's been my go to source for transfering large files to/from work.
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Aug 17, 2010
I would like to know if it is normal to experience 10MB/s data transfer rates during copying between partitions on my local hard drives (Toshiba 250GB 5400rpm SATA) while having three times faster (30MB/s) transfer rates between local partitions and USB drives (Kingston 8GB).
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Sep 4, 2010
My problem is extremely slow write on hard disk and 100% cpu usage and it happens when I want to write something on the hard derive not any other external derive.
Tried a fresh ubuntu install. No change. I am not even sure if it is a software or hardware problem.
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Jul 4, 2010
My friend bought an old hard drive. He noticed something with the hard drive that it was just replaced with a SATA socket. So meaning, the SATA socket was soldered to the PATA hard disk to replace the PATA socket to SATA socket to make it a SATA.
Now the question is:
1. Does the Transfer Rate of the harddisk (that has been replaced from PATA socket to SATA socket) would be SATA transfer rate? OR would still be PATA transfer rate?
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Nov 1, 2010
1. When I'm not logged into the server, only the shares are visible on my Windows computer. Clicking on the share folder displays an error message. As soon as I log in at the server, the files within the shares become accessible on the Windows box.
2. File transfers between the machines are extremely slow. Watching the system monitor, there's a brief burst of network activity followed by 10-30 seconds of nothing...on a gigabit network, the effective transfer rate is ~120kbs. There's no other network activity going on that would account for this behavior.
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Sep 14, 2010
I got a new machine with GA-p55A-ud3 mobo and a WDC WD10EARS 1T disk. When I tried to benchmark the disk IO, I was suprised by the low write speed:
[Children see throughput for 1 initial writers = 35962.63 KB/sec
Parent sees throughput for 1 initial writers = 35962.63 KB/sec
Min throughput per process = 35962.63 KB/sec
[code].....
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May 18, 2011
im am new in compiling kernel, i had kernel 2.6.32-5 on debian 6 , so i compiled kernel 2.6.38.6 , my system can boot and up but i have a problem with flash disk and CDs and DVDs , now i cant mount these cases, in compiling i select CD-ROM /dvd filesystem and Dos/fat/NTFs filesystem too
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Jun 16, 2010
I've had this odd, stubborn problem that seems to be related to the nouveau video driver and certain kernel builds: opening or saving full resolution jpeg image files using GIMP takes from 1-5 minutes and causes xorg CPU usage to reach almost 100%.This also occurs when using UFRaw to open Canon raw image files. The problem is not intermittent, it happens each time I open a file. Opening photos in the default image viewer works fine.This bug has vexed me on and off for the last couple of months, and seems to be triggered by a combination of kernel version and the Nouveau driver. I switched to Debian Squeeze from Ubuntu 10.04 because I was experiencing slow image open times in Ubuntu 10.04 (using the Nouveau driver).I did not experience the bug running Squeeze with the nv driver and kernel 2.6.32-3.
I did not have the bug running Squeeze with the nouveau driver and kernel 2.6.32-5 backported from Sid.I began experiencing the bug again after the Squeeze updates on June 14th (still running nouveau and kernel 2.6.32-5). I update daily so it's likely to be that day's updates which caused the bug to reappear.Just for grins, I installed the Liquorix kernel. The bug does not occur using kernel 2.6.34-0.dmz.10-liquorix-686 and the nouveau video driver.I have a Nvidia FX5500 video card. I prefer the nouveau driver to nv as my display seems to behave better. The Nvidia proprietary drivers are not an option because they produce X freezes when I am doing photo editing. The liquorix kernel seems to be working fine, but for long-term stability I'd rather be running a mainline Debian kernel.
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Jul 9, 2010
I've mounted a kind of proxy to map some cifs folders, 150 aprox. It umounts and mounts everything each hour, to check on changes on a configfile managed by a secretary, she just edits a file with names and I prepared a cron to notice the new mountpoints. It's a debian, no desktop , no nothing else. Just mount.cifs and apache2 to let the master webpage access to some files on each user samba home. The server has 4 cores and 2Gb of RAM. It's brand new, but it goes very slow.
[Code]....
Does anyone have an idea why is that working so slow? The apache is working well, it's the shell which is working extremelly slow.
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May 27, 2011
I'm using Squeeze Gnome.
When I watch videos within my browser, they play fine until I expand it to full screen, then the frame rate slows way down.
I've been reading related posts, If I install the gecko media player, will that solve this problem?
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Aug 27, 2010
I have an old computer a friend of mine found in a dumpster, and I've decided to use it as a file server. After finally getting it to connect to my wifi network, I tried connecting to it via OpenSSH on my main desktop. After I connected, I noticed OpenSSH was being very laggy. Whenever I type anything in there's a very noticable and annoying delay from when I type it to when it appears on screen. Now, a while ago a friend of mine was helping me fix my laptop when fglrx drivers broke x, and I set up openssh on there so he could access it. According to him, there was no lag (and he's half-way across the globe, whereas my file server is in the other room). The computer is an old Pentium 4 with one and a half gigs of RAM, two hard drives (one I use for the os/swapping and the other I use for /home). It's connected to wifi via a spare USB Linksys 802.11 bg adaptor I found lying around, and it's using the default drivers that come with Debian to connect.
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Jul 16, 2011
I'm running Ubuntu 10.04 as a full install from a USB flash drive. In other words, I've installed to the flash stick just as though it were a normal hard drive. This is not a Live USB/Persistent install.
The drive is an off-the shelf 8GB Gigaware stick, and its read/write performance is pretty slow. Any time I do anything that requires disk access, it's very sluggish and tends to hang.
I'm looking for advice on things I could do to minimize the amount of disk-access made in the course of using the system, so that it will feel snappier and more responsive.
Some things I've done already:Installed 'preload', which is a daemon that monitors what programs you use frequently, and pre-loads them into RAM to reduce startup time. Mounted /tmp as a tmpfs (RAM disk) and moved my Firefox and Chrome browser caches into RAM. Set noatime for my root and home partitions.
Should I be trying to disable the filesystem journal as well? I'm less concerned with potentially burning out the flash drive with too many writes than I am with just making the system more responsive and nicer to use.
One other thing I was reading about is the so-called "Laptop Mode" that appears to be kernel settings to allow you to spin down a laptop hard drive: [url]
Obviously a flash drive doesn't spin, but it seems like some of those same techniques could be helpful here. Is there anyone who has experience running Linux in a situation with a very slow hard drive?
The computers I'm using this flash drive with all have between 2 and 8 GB of RAM, so moving more stuff into RAM is unlikely to be an issue.
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Oct 6, 2015
I have three monitors, two Dells and an older LG all native at 1920x1080@60Hz and only recently installed Debian on this setup.
The LG is detected as running at 59.93Hz instead of 60Hz and this discrepancy appears to drive up the temperatures in my GPU constantly, even on idle, and introduces severe stuttering in any kind of graphical application.
I had the exact same issue with Windows 7 as well, but was able to fix it by changing the display settings of said monitor to 60Hz refresh, thereby returning the idle temps to normal and removing the stuttering.
My problem now is that I can't seem to change the refresh rate of this screen at all under debian.
xrandr -q returns that the monitor is running at 59.93Hz, but also shows 60Hz as available.
xrandr --output DVI-I-1 --rate 60
appears to have absolutely no effect, it doesn't error but it also doesn't change the refresh rate.
Trying to add a new mode with 60hz and modeline obtained from cvt results in the following:
Code: Select allxrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
xrandr --addmode DVI-I-1 "1920x1080_60.00"X Error of failed request:Â BadMatch (invalid parameter attributes)
Major opcode of failed request:Â 140 (RANDR)
Minor opcode of failed request:Â 18 (RRAddOutputMode)
Serial number of failed request:Â 41
Current serial number in output stream:Â 42
I've also tried to set the refresh rate through the proprietary nvidia driver and manually through xorg.conf, both to no effect;
Here's my current xorg.conf:
Code: Select allSection "ServerLayout"
  Identifier   "Layout0"
  Screen   0 "Screen0" 0 0
  InputDevice  "Keyboard0" "CoreKeyboard"
  InputDevice  "Mouse0" "CorePointer"
  Option     "Xinerama" "0"
EndSection
[Code] ....
The driver settings will show 60Hz but the listing for the monitor in the driver and xrandr will still show 59.93Hz. Saving the settings of nvidia-settings to .nvidia-settings-rc was equally fruitless.
The settings on the monitor itself also show it running at 60Hz, without an option to go down to 59.93Hz so I got no clue where that is even coming from.
What else to try, besides buying a new monitor, which I'm not quite prepared to do yet.
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Nov 15, 2010
I have a 500gB USB drive connected to my laptop for backups and filestorage. But I can't get it to play nice with Midnight Commander. My transfer speeds max ut at 2MB/s wich is painfully slow when moving large files such as movies. Worker FM transfers the same files to the same drive much MUCH faster (not sure by how much, though). This leads me to the conclusion that the problem lies with MC.
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Apr 8, 2011
I have install squeeze, wheezy. I understand there a glitch in nvidia-setting. So how can I change screen resolution and refresh rate in xorg.conf?
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (pbuilder@windlord) Sun Jun 13 06:03:17 UTC 2010
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection .....
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Mar 27, 2010
I have a LaCie NAS which is mounted on my main linux machine over a wifi LAN using the cifs file system. I would stupidly expect the transfer rate between my hard drive and the NAS to be limited by the Wifi speed (54 Mbps) but when I transfer files, the speed tops at 1.9 Mb/s which is roughly 15.2 Mbps. The most puzzling thing is that when I do multiple simultaneous transfers, I reach approximately 3MB/s in total but none of the individual transfers goes beyond 1.8. Does anyone have an idea about what is keeping the transfer rate so low?
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Mar 23, 2011
Sd card transfer rate is 133mb/s and ide transfer rate is same 133mb/s. Using no extra wire and direct connection, why is that sd card is much gradual than ide?
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Apr 1, 2010
We have a Linux box which acts a a file server. Currently, files and directories are exported using NFS.At the moment, we are a bit concern on its data transfer performance. FYI, we are using a embedded Gigabit Ethernet port on the file server. We ran a few simple write tests between NFS client (also utilizes GigE port) and the NFS server. In these tests, both NFS server and client are both connected directly to each other with a Cat5E cable. Unfortunately, the write/transfer speed results are not as per our expectation. It scores roughly about 11-12MByte/s, where as theoretically Gigabit Ethernet transfer rate is able to reach up to approximately 120MByte/s.I wouldn't expect to reach the theoretical max transfer rate (it would be great if we can , but I would appreciate if you guys can share with us in terms of the following :
1) What's the practical max data transfer rate which you guys managed to observe in a normal Gigabit based connection? What about jumbo frames configuration?
2) Is there any additional tuning/configuration we need to do within the OS to reach those practical max data transfer rate figure?
3) Does PCI-e / system bus plays a role in achieving this speed? For example, we are using the embedded GigE port and we heard some people says embedded ports are actually sharing the system bus and resources with other devices, which might adds into performance issue. Correct me if I'm wrong.
4) Does converting to Cat6 cabling will guarantee an increase in the data transfer performance?
5) In the future (once we are clear on how much single GigE transfer rate we can go) , we are looking into doing bonding since that the NFS server's shared directory/volume read-write speed is way much higher (i.e 400-600MByte/s). Will bonding allow us to achieve higher NFS read/write speed? What are the bonding modes best used for this purposes? Appreciate if anybody who has experience in doing bonding for NFS can share their experience.
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Nov 25, 2010
I have a FC13 box that has both Gnome and KDE sessions installed.
I have noticed on the KDE session that data transfer rates are slower than when I use Gnome.
In Gnome, I can transfer files between my FC13 machine and my Ubuntu 10.04 pc at a rate of 6.5 MB/s (52 Mb/s if my maths is correct), but in KDE the rate is only 3.5 MB/s (28 Mb/s).
"ethtool eth0" shows my NIC speed as 100 Mb/s. Obviously I am not hitting anywhere near that speed in either session, (a separate article may be happen in the future to address that), but I am curious as to why KDE is that much slower for file transfer.
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Apr 25, 2010
anyone know why this would happen? I ran the following dd command:
Code:
dd if=/dev/sdb1 of=hard/old_dell_desk_part1.img
a USB external drive was mounted to the 'hard' directory with the standard mount command. it is a ntfs-3g filesystem. it is a mechanical drive.
same behavior with solid state memory (flash, and solid state hard drives)
3693492+0 records in
3693492+0 records out
1891067904 bytes (1.9 GB) copied, 274.562 s, 6.9 MB/s
[Code].....
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Jan 28, 2011
I have not tried this, and I am only wondering about the result.Let's say that I have a PC/Laptop with two network devices: an ethernet and a wireless. Can I connect both of the to the same network (if this network allows both connection) to increase the transfer rate between the PC/Laptop and the server???
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Sep 26, 2010
I have 2 10.04 machines connected through a switch, both with gigabit on board ethernet. Both machines show 1000 Mb/s connections.When I transfer large files (gig plus up to multi-gig) the maximum I get according to ftp 11472 kB/s.I did rough computer school math in my head and that seems low but I'll admit I know very little about network transfer rates.My question is what transfer rates should I expect to get between the 2?
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Jan 11, 2010
I just bought a HP 3085dx laptop with an intel 5100 agn wireless card.
The problem: copying a big file over the wireless to a gigabit hardwired to the router computer only gives an average 3.5MB/Second transfer rate. If I do the same copy from my wireless-n macbook pro to the same computer. I get a transfer rate of about 11MB/sec. Why the big difference? I noticed the HP always connects to the 2.4 GHZ band instead of the 5GHZ bands...
On the HPL
[jerry@bigbox ~]$ ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:246:36:AC4
inet addr:192.168.1.75 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::224:d6ff:fe36:acc4/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:639243 errors:0 dropped:0 overruns:0 frame:0
TX packets:1293049 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:53832795 (51.3 MiB) TX bytes:1888619922 (1.7 GiB)
[jerry@bigbox ~]$ iwconfig wlan0
wlan0 IEEE 802.11abgn ESSID:"<censored>"
Mode: Managed Frequency:2.412 GHz
Access Point: 00:24:36:A7:27:A3
Bit Rate=0 kb/s Tx-Power=15 dBm
Retry long limit: 7 RTS thr: off Fragment thr:off
Power Management: off
Link Quality=70/70 Signal level=-8 dBm Noise level=-87 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
I am not getting any errors. I don't know why the bit rate is not known. My airport extreme base station typically reports that the 'rate' for the hp is typically 250~300MBi and about the same for the MacBook Pro. The hp is about 6 inchs away from the base station. Is there anyway to get the rascal to go mo'faster? Is there anyway to get the rascal to use the 5GHZ band.
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