From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dima Kogan Newsgroups: gmane.emacs.bugs Subject: bug#49714: 28.0.50; TRAMP burns CPU and has insufficient user reporting when using xxxx-sk SSH keys Date: Sat, 24 Jul 2021 11:35:05 -0700 Message-ID: <87wnpfr25i.fsf@secretsauce.net> References: <87o8asu1mg.fsf@jpl.nasa.gov> <87sg03apj1.fsf@gmx.de> <87zgubr31n.fsf@secretsauce.net> <87pmv7o9hn.fsf@gmx.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30222"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: mu4e 1.4.15; emacs 28.0.50 Cc: 49714@debbugs.gnu.org To: Michael Albinus Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jul 24 20:36:09 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1m7MVN-0007cr-KC for geb-bug-gnu-emacs@m.gmane-mx.org; 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Sat, 24 Jul 2021 14:35:06 -0400 (EDT) In-reply-to: <87pmv7o9hn.fsf@gmx.de> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:210658 Archived-At: Michael Albinus writes: > set tramp-verbose to 10, and send the Tramp debug buffer after the > test. I have a log. It's large. Do I need to sanitize the credentials out of it? Don't see anything sensitive at a quick glance. >> There should be a loop, but emacs shouldn't be using all my CPU cycles >> while waiting for user interaction. Emacs can select() on the ssh >> process file descriptor, and sleep until the ssh process has stuff to >> say. > > Well, I'm on Lisp level. I just have accept-process-output, and in my > loop I check whether there is new output. There's no low level API to > let Emacs sleep for the ssh process file descriptor. It just sounds unbelievable that emacs can't do blocking reads from the lisp level. Let me look at (accept-process-output)