Mailing List Archive: tar slow (2.2.0-pre4)

tar slow (2.2.0-pre4)

Jan 5, 1999, 1:56 AM

Post #1 of 6 (581 views)

AMD K6, 32MB, IDE hard drive, RH5.0 w/new kernel
I don't know what could be causing this, but 'tar' is really slow on
recent kernels. When unpacking something, it will unpack four or five files,
pause about five seconds, unpack a few more, pause again, and so on. It
literally took three hours to unpack the whole 2.2.0 kernel source.
(Normally it's something like a minute or so.)
The data points I have:
2.1.126: works fine (file names scroll by lickety-split)
2.1.129: exhibits the problem (noticed it when unpacking 2.2.0)
2.2.0-pre1 to pre4: all have the problem.
(I actually reboot to 2.1.126 when I have to untar something!) I haven't
noticed any other slowness. Kernels I've tried before 2.1.126 (back to
2.1.106) and 2.0.3x don't exhibit the symptom.
CC replies to my email since I am not subscribed to this list.
Bill.
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Re: tar slow (2.2.0-pre4) [ In reply to ]

dkelson at inconnect

Jan 5, 1999, 10:02 PM

Post #2 of 6 (566 views)

Permalink

On Tue, 5 Jan 1999, William R. Dirks wrote:
> AMD K6, 32MB, IDE hard drive, RH5.0 w/new kernel
>
> I don't know what could be causing this, but 'tar' is really slow on
> recent kernels. When unpacking something, it will unpack four or five files,
This is actually a problem with a non-updated RH5.0 box. You need to
install the new initscripts rpm IIRC.
Dax Kelson
Internet Connect, Inc.
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Re: tar slow (2.2.0-pre4) [ In reply to ]

gold at u

Jan 6, 1999, 1:23 AM

Post #3 of 6 (565 views)

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On Tue, 5 Jan 1999, William R. Dirks wrote:
My RH5.0 box was similarly constipated with tar. A simple solution was given
to me on this list and I'll pass it on. In nsswitch.conf remove all references
except to dns (hopefully this is possible for your setup). I'm not kidding.
This makes a tremendous laxative.
> AMD K6, 32MB, IDE hard drive, RH5.0 w/new kernel
>
> I don't know what could be causing this, but 'tar' is really slow on
> recent kernels. When unpacking something, it will unpack four or five files,
> pause about five seconds, unpack a few more, pause again, and so on. It
> literally took three hours to unpack the whole 2.2.0 kernel source.
> (Normally it's something like a minute or so.)
>
> The data points I have:
> 2.1.126: works fine (file names scroll by lickety-split)
> 2.1.129: exhibits the problem (noticed it when unpacking 2.2.0)
> 2.2.0-pre1 to pre4: all have the problem.
>
> (I actually reboot to 2.1.126 when I have to untar something!) I haven't
> noticed any other slowness. Kernels I've tried before 2.1.126 (back to
> 2.1.106) and 2.0.3x don't exhibit the symptom.
>
> CC replies to my email since I am not subscribed to this list.
>
> Bill.
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/
>
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Re: tar slow (2.2.0-pre4) [ In reply to ]

dag at digibel

Jan 6, 1999, 1:53 AM

Post #4 of 6 (562 views)

Permalink

> AMD K6, 32MB, IDE hard drive, RH5.0 w/new kernel
>
> I don't know what could be causing this, but 'tar' is really slow on
> recent kernels. When unpacking something, it will unpack four or five files,
> pause about five seconds, unpack a few more, pause again, and so on. It
> literally took three hours to unpack the whole 2.2.0 kernel source.
> (Normally it's something like a minute or so.)
i reported this earlier and some suggested to remove all 'nis', 'nis+',
'nisplus' and 'yp' appearances from the /etc/nsswitch.conf
but that doesn't explain why this worked for 2.0.x and older 2.1-kernels.
can this be mentioned in the lkml-faq ?
(it's only reported to slow down on redhat-boxes, other distribution don't
add nis as a default ?)
dag wieers, <dag@digibel.be>, http://dag.ml.org/ _| _ _
° we know linux is the best, it can do infinite ° (_|(_|(_| °
loops in five seconds. -- Linus Torvalds |
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Re: tar slow (2.2.0-pre4) [ In reply to ]

cat at zip

Jan 7, 1999, 4:03 AM

Post #5 of 6 (564 views)

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Dag Wieers wrote the following:
>
> > AMD K6, 32MB, IDE hard drive, RH5.0 w/new kernel
> >
> > I don't know what could be causing this, but 'tar' is really slow on
> > recent kernels. When unpacking something, it will unpack four or five files,
> > pause about five seconds, unpack a few more, pause again, and so on. It
> > literally took three hours to unpack the whole 2.2.0 kernel source.
> > (Normally it's something like a minute or so.)
>
> i reported this earlier and some suggested to remove all 'nis', 'nis+',
> 'nisplus' and 'yp' appearances from the /etc/nsswitch.conf
>
> but that doesn't explain why this worked for 2.0.x and older 2.1-kernels.
>
> can this be mentioned in the lkml-faq ?
>
> (it's only reported to slow down on redhat-boxes, other distribution don't
> add nis as a default ?)
Well I have all that crap in mine (redhat 5.1, butchered) and it's groovy.
Always has been.
--
CaT (cat@zip.net.au) URL: http://www.zip.com.au/dev/null
There was farting in the air that night,
It lit so bright,
Fernando...
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Re: tar slow (2.2.0-pre4) [ In reply to ]

gold at u

Jan 7, 1999, 5:44 PM

Post #6 of 6 (567 views)

Permalink

On Wed, 6 Jan 1999, Dag Wieers wrote:
> > AMD K6, 32MB, IDE hard drive, RH5.0 w/new kernel
> >
> > I don't know what could be causing this, but 'tar' is really slow on
> > recent kernels. When unpacking something, it will unpack four or five files,
It slowed down my 2.0.36 kernel
> > pause about five seconds, unpack a few more, pause again, and so on. It
> > literally took three hours to unpack the whole 2.2.0 kernel source.
> > (Normally it's something like a minute or so.)
>
> i reported this earlier and some suggested to remove all 'nis', 'nis+',
> 'nisplus' and 'yp' appearances from the /etc/nsswitch.conf
>
> but that doesn't explain why this worked for 2.0.x and older 2.1-kernels.
>
> can this be mentioned in the lkml-faq ?
>
> (it's only reported to slow down on redhat-boxes, other distribution don't
> add nis as a default ?)
>
> dag wieers, <dag@digibel.be>, http://dag.ml.org/ _| _ _
> ° we know linux is the best, it can do infinite ° (_|(_|(_| °
> loops in five seconds. -- Linus Torvalds |
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.rutgers.edu
> Please read the FAQ at http://www.tux.org/lkml/
>
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