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Groups > linux.debian.user > #238054

Re: `pv` rates

From Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups linux.debian.user
Subject Re: `pv` rates
Date 2021-08-02 21:20 +0200
Message-ID <CHLDH-7uY-1@gated-at.bofh.it> (permalink)
References (5 earlier) <CHG1j-436-1@gated-at.bofh.it> <CHImu-5oJ-9@gated-at.bofh.it> <CHIFR-5Kx-19@gated-at.bofh.it> <CHJVf-6p6-1@gated-at.bofh.it> <CHLkl-79s-1@gated-at.bofh.it>
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>> If it weren't for the first sometimes changing to
>> 44.xKiB/s it'd be hard to know which is which (IIUC the average is
>> higher because occasionally the drive gives a more reasonable transfer
>> rate than that measly 45kB/s).
>
> So now we're left wondering how you came by this situation. Perhaps
> you slumped onto the Return key, then woke up after a few minutes,
> having missed the initial burst that gave rise to the average being
> more than 50% faster than the current rate.

I don't know either.  Reading the whole drive would take a few years, so
I'm only fetching the few parts which have changed since the last
backup, and when I look the rate seems to be always ~45kB/s, but
obviously there have to be bursts at higher speeds (presumably because
the drive's defect doesn't affect every cylinder in the same way or
something like that.  E.g. the average has moved up to ~80kB/s since my
last message).


        Stefan

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burn iso to usb Gunnar Gervin <dofeelok@gmail.com> - 2021-07-31 14:10 +0200
  Re: burn iso to usb Nicolas George <george@nsup.org> - 2021-07-31 14:10 +0200
    Re: burn iso to usb <tomas@tuxteam.de> - 2021-07-31 14:40 +0200
    Re: burn iso to usb Hans <hans.ullrich@loop.de> - 2021-07-31 18:50 +0200
      Re: burn iso to usb Nicolas George <george@nsup.org> - 2021-07-31 18:50 +0200
      Re: burn iso to usb Greg Wooledge <greg@wooledge.org> - 2021-07-31 19:40 +0200
        Re: burn iso to usb <tomas@tuxteam.de> - 2021-07-31 20:00 +0200
      Re: burn iso to usb <tomas@tuxteam.de> - 2021-07-31 19:40 +0200
        Re: burn iso to usb Stefan Monnier <monnier@iro.umontreal.ca> - 2021-07-31 20:40 +0200
          Re: burn iso to usb <tomas@tuxteam.de> - 2021-07-31 20:50 +0200
            Re: burn iso to usb "Thomas Schmitt" <scdbackup@gmx.net> - 2021-07-31 21:10 +0200
          Re: burn iso to usb Anssi Saari <as@sci.fi> - 2021-08-02 15:20 +0200
            Re: burn iso to usb David Wright <deblis@lionunicorn.co.uk> - 2021-08-02 17:50 +0200
              Re: burn iso to usb Anssi Saari <as@sci.fi> - 2021-08-02 18:10 +0200
                `pv` rates (was: burn iso to usb) Stefan Monnier <monnier@iro.umontreal.ca> - 2021-08-02 19:30 +0200
                Re: `pv` rates (was: burn iso to usb) David Wright <deblis@lionunicorn.co.uk> - 2021-08-02 21:00 +0200
                Re: `pv` rates Stefan Monnier <monnier@iro.umontreal.ca> - 2021-08-02 21:20 +0200
                Re: `pv` rates David Wright <deblis@lionunicorn.co.uk> - 2021-08-04 18:00 +0200
                [OFFTOPIC] Fun with pv and broken drive (was: `pv` rates) Stefan Monnier <monnier@iro.umontreal.ca> - 2021-08-04 19:30 +0200
            Re: burn iso to usb Gunnar Gervin <dofeelok@gmail.com> - 2021-08-02 21:10 +0200
              Re: burn iso to usb Greg Wooledge <greg@wooledge.org> - 2021-08-02 21:50 +0200
                Re: burn iso to usb <tomas@tuxteam.de> - 2021-08-02 22:00 +0200
                Re: burn iso to usb Nicolas George <george@nsup.org> - 2021-08-02 22:00 +0200
                Re: burn iso to usb Gunnar Gervin <dofeelok@gmail.com> - 2021-08-03 14:30 +0200
                Re: burn iso to usb Gunnar Gervin <dofeelok@gmail.com> - 2021-08-03 14:40 +0200
        Re: burn iso to usb Robbi Nespu <robbinespu@gmail.com> - 2021-08-02 12:30 +0200
    Re: burn iso to usb Gunnar Gervin <dofeelok@gmail.com> - 2021-08-01 21:10 +0200

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