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causes for this?

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I have a usb-3 to sata adapter with a 60GB ssd attached plugged into one 
of the usb-2 ports of a raspi 3b. I just moved a 150 megabyte zip file 
containing the 750 megabyte sources for an rt kernel to it, got decent 
speed doing the copy.

ssh'd into the pi, I asked mc to uppack it, took several minutes. When mc 
finally displayed the root dir of the data in the zip, I set it to the 
task of copying it to the ssd.  The speed slowly decayed and after 
around 700k has been copied, the speed is now just over 112  bytes a 
second, with an ETA of nearly 2000 hours. Well into August to complete 
at this rate.

Does anyone have a clue where the blockage for data might be?  This is 
from that drive, to that drive. htop is showing perhaps 1 megabyte of 
swap being used. ????????

Thanks everybody.

Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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causes  for this? Gene Heskett <gheskett@shentel.net> - 2018-06-23 15:00 +0200
  Re: causes for this? David Pottage <david@electric-spoon.com> - 2018-06-23 15:30 +0200
    Re: causes for this? Alan Corey <alan01346@gmail.com> - 2018-06-23 15:40 +0200
    Re: causes for this? Gene Heskett <gheskett@shentel.net> - 2018-06-23 17:20 +0200
      Re: causes for this? Diego Roversi <diegor@tiscali.it> - 2018-06-24 10:40 +0200
        Re: causes for this? Gene Heskett <gheskett@shentel.net> - 2018-06-24 15:40 +0200
          Re: causes for this? Alan Corey <alan01346@gmail.com> - 2018-06-24 15:50 +0200
            Re: causes for this? peter green <plugwash@p10link.net> - 2018-06-25 02:10 +0200
              Re: causes for this? Christian Knoke <chrisk@cknoke.de> - 2018-06-25 11:20 +0200
          Re: causes for this? Gene Heskett <gheskett@shentel.net> - 2018-06-24 16:20 +0200
            Re: causes for this? Elena ``of Valhalla'' <valhalla-l@trueelena.org> - 2018-06-25 12:30 +0200
              Re: causes for this? Gene Heskett <gheskett@shentel.net> - 2018-06-25 13:00 +0200
      Re: causes for this? Luke Kenneth Casson Leighton <lkcl@lkcl.net> - 2018-06-24 13:00 +0200
        Re: causes for this? Gene Heskett <gheskett@shentel.net> - 2018-06-24 17:00 +0200
          Re: causes for this? Luke Kenneth Casson Leighton <lkcl@lkcl.net> - 2018-06-25 11:30 +0200
            Re: causes for this? Gene Heskett <gheskett@shentel.net> - 2018-06-25 12:40 +0200

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