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Re: tramp (2.1.16-pre); Wicked slowdown

From: David Abrahams
Subject: Re: tramp (2.1.16-pre); Wicked slowdown
Date: Mon, 20 Apr 2009 16:45:32 -0400

Hmm, that one didn't make it through to the list, but Michael should have gotten it. Anyway, here's the same thing with tramp-verbose = 10 and zipped in one file; hopefully that should be accepted. I find this one even more interesting to ediff.

Attachment: traces.tar.gz
Description: GNU Zip compressed data

see tdebug.2.mac.shifted.rounded and tdebug.2.linux.shifted

On Apr 20, 2009, at 4:32 PM, David Abrahams wrote:

On Apr 20, 2009, at 11:23 AM, David Abrahams wrote:

OK, thanks.  Just wanted to make sure you had gotten it.

I'm still looking into this; it appears that even /sudo::/etc has a similar slowdown.

I'm not sure that's correct anymore.

Anyhow, I got some more data. I set tramp-verbose 8 and then did the same thing on Mac and Linux

tdebug.1.mac -- raw debug buffer from mac
tdebug.linux -- raw debug buffer from linux

I then applied a little python script I wrote that shifts the timestamps so they line up and rounds to the nearest 2 second boundary to avoid spurious differences.

So if you

 (setq ediff-diff-options "-d -a")

and compare these two files with ediff (use refining and highlighting), it might be a bit useful.


Hope all this data helps,
<tdebug.1.mac><tdebug.linux><><tdebug. 1.mac.shifted.rounded><tdebug.linux.rounded>
David Abrahams
BoostPro Computing

David Abrahams
BoostPro Computing

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