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From: Philippe Vaucher <philippe.vaucher@gmail.com>
To: Dmitry Gutov <dgutov@yandex.ru>
Cc: Michael Albinus <michael.albinus@gmx.de>,
	Stefan Monnier <monnier@iro.umontreal.ca>,
	Emacs developers <emacs-devel@gnu.org>
Subject: Re: emacs-27 b46c75b: xref-matches-in-files: Big Tramp speed-up
Date: Mon, 13 Jan 2020 10:50:48 +0100	[thread overview]
Message-ID: <CAGK7Mr46Vk8xw04NNRHCwoTcKt9h5_nbN0cW9mB2AVRve_t7ww@mail.gmail.com> (raw)
In-Reply-To: <fed14541-f4a9-8139-b688-03ffb62596ff@yandex.ru>

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>
> On 08.01.2020 22:51, Stefan Monnier wrote:
> > Yes, I saw that, but it's still not clear to me which part of this costs
> > so much more than tramp-file-local-name itself, nor why.
>
> The whole of it, mostly. I've shown a simple patch which improved
> performance a lot, by Michael says it's unmaintainable (IIUC):


I'm not sure wether what I'll say is relevant to this discussion (please
forgive me if it is not), but I just wanted to mention that a significant
part of "debugging TRAMP problems" in projects like projectile is related
to TRAMP's speed.

I always assumed it was due to the fact that checking file attributes over
SSH is unavoidably slower than doing it locally, but if TRAMP can be
improved for things like `locate-dominating-file` over TRAMP it'd be a huge
help.

Kind regards,
Philippe

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      reply	other threads:[~2020-01-13  9:50 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200107133628.1996.14412@vcs0.savannah.gnu.org>
     [not found] ` <20200107133629.2E736211A5@vcs0.savannah.gnu.org>
     [not found]   ` <87y2uiiakq.fsf@gmx.de>
2020-01-08 13:52     ` emacs-27 b46c75b: xref-matches-in-files: Big Tramp speed-up Dmitry Gutov
2020-01-08 14:13       ` Michael Albinus
2020-01-08 14:56         ` Stefan Monnier
2020-01-08 15:13           ` Michael Albinus
2020-01-08 16:25             ` Stefan Monnier
2020-01-08 16:40               ` Michael Albinus
2020-01-08 18:56                 ` Stefan Monnier
2020-01-08 20:10                   ` Michael Albinus
2020-01-08 20:51                     ` Stefan Monnier
2020-01-08 23:42                       ` Dmitry Gutov
2020-01-13  9:50                         ` Philippe Vaucher [this message]

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