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OpenBSD General Other questions regarding OpenBSD which do not fit in any of the categories below. |
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Slow USB
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Last edited by Prevet; 2nd December 2022 at 04:02 PM. |
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Quote:
say that 2 hours, sounds pretty fast. USB sticks do wear out, and they do get slow when they are getting ready to fail. Also a old, worn out usb port can be slow, or erratic.
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Age, as in how many times the Flash memory has been written to, can affect speed as the number of functioning memory cells decreases with repeated use (but that doesn't appear to be the problem the OP is experiencing). Last edited by johnR; 25th November 2017 at 04:29 PM. |
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How fast does it write to a USB stick that's formatted for FFS?
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Last edited by johnR; 25th November 2017 at 11:53 AM. |
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Example: Code:
# mount /dev/sd1i usb # exit $ cd usb $ ls ----snip---- $ ls -slh w3m-0.5.3p3-image.tgz 1984 -rw-r--r-- 1 garry garry 990K Jul 27 2015 w3m-0.5.3p3-image.tgz $ Code:
$ pwd /home/garry/usb $df -h Filesystem Size Used Avail Capacity Mounted on ---- snip ---- /dev/sd1i 14.5G 2.3G 12.3G 16% /home/garry/usb I just now tried copying a 2 gb directory,with files, copied to a kingston 16gb "data stick", (usb stick). About 10 min,... so yes, 2 hours to copy about ~500-600 Mb., seems very slow to me as well. I think some more details on exactly how you are doing the copy procedure, .... ? Also I noticed some thing interesting, I wanted to make a couple of screen shots, but I forgot to cd , out of the usb dir, and back into my home dir, ... so when I made the screen shots, I was still in the directory where the device is mounted, and the screen shots got saved to the device, at that time, I noticed the estimated time , on the files I was copying , slowed way down, it showed a estimated time of 2 hours, Hoping this makes sense, any way, if there are other tasks being done, or something else is keeping the device "busy", that could/does slow down the file copy operation considerably.
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My best friends are parrots Last edited by PapaParrot; 25th November 2017 at 02:45 PM. |
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Just to add some info to this thread, I tried copying a couple of GB from OpenBSD to an ext2fs formatted USB stick (using cp). It was quite a bit slower than copying to the same stick from Linux on the same hardware.
After formatting the stick to FFS the copy speed was back up to what I'd normally expect. It appears that copying to a non-native file system is slow. |
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Yes that is what I found. It copies from OpenBSD to non-native file systems at about 1 Mb per second even on hard drives. So I decided not to use the OpenBSD file system for long term storage of big files. |
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Copying from FFS to FAT on the same HDD is also slow. It's better to use FFS as much as possible.
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Signature: Furthermore, I consider that systemd must be destroyed. Based on Latin oratorical phrase |
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I have an external FAT backup drive and copying data from it to OpenBSD is quite fast. I still use Windows and am using Linux on another machine for a little while longer, so I need something they can all talk to.
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On the same HDD i had different feel, but of course it is faster than pendrive.
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Signature: Furthermore, I consider that systemd must be destroyed. Based on Latin oratorical phrase |
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Oops. I forgot that I am using NTFS with Fuse.
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