From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Newsgroups: gmane.lisp.guile.bugs Subject: bug#39361: continuation and gc performance Date: Sun, 22 Mar 2020 21:51:31 +0100 Message-ID: <87wo7ct8oc.fsf@gnu.org> References: <878sjtzk7e.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="93899"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) Cc: 39361@debbugs.gnu.org To: Stefan Israelsson Tampe Original-X-From: bug-guile-bounces+guile-bugs=m.gmane-mx.org@gnu.org Sun Mar 22 21:52:10 2020 Return-path: Envelope-to: guile-bugs@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 1jG7Zp-000OIK-SH for guile-bugs@m.gmane-mx.org; Sun, 22 Mar 2020 21:52:09 +0100 Original-Received: from localhost ([::1]:49686 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jG7Zo-0001FS-Hf for guile-bugs@m.gmane-mx.org; Sun, 22 Mar 2020 16:52:08 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:40607) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jG7Zj-0001F8-Ie for bug-guile@gnu.org; Sun, 22 Mar 2020 16:52:04 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jG7Zi-0000Eg-OQ for bug-guile@gnu.org; Sun, 22 Mar 2020 16:52:03 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:45039) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jG7Zi-0000Ea-LS for bug-guile@gnu.org; Sun, 22 Mar 2020 16:52:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jG7Zi-0005a7-Gx for bug-guile@gnu.org; Sun, 22 Mar 2020 16:52:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: bug-guile@gnu.org Resent-Date: Sun, 22 Mar 2020 20:52:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 39361 X-GNU-PR-Package: guile Original-Received: via spool by 39361-submit@debbugs.gnu.org id=B39361.158491030021422 (code B ref 39361); Sun, 22 Mar 2020 20:52:02 +0000 Original-Received: (at 39361) by debbugs.gnu.org; 22 Mar 2020 20:51:40 +0000 Original-Received: from localhost ([127.0.0.1]:51012 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jG7ZM-0005ZR-2B for submit@debbugs.gnu.org; Sun, 22 Mar 2020 16:51:40 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:53697) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jG7ZK-0005ZD-S5 for 39361@debbugs.gnu.org; Sun, 22 Mar 2020 16:51:39 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40174) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jG7ZF-00009j-8I; Sun, 22 Mar 2020 16:51:33 -0400 Original-Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=38634 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jG7ZE-0003rv-NP; Sun, 22 Mar 2020 16:51:33 -0400 X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 3 Germinal an 228 de la =?UTF-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu In-Reply-To: (Stefan Israelsson Tampe's message of "Sat, 21 Mar 2020 21:43:49 +0100") X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-guile@gnu.org List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guile-bounces+guile-bugs=m.gmane-mx.org@gnu.org Original-Sender: "bug-guile" Xref: news.gmane.io gmane.lisp.guile.bugs:9683 Archived-At: Hi, Stefan Israelsson Tampe skribis: > That function marks the working stack no, what about stack segments in > continuations will they be marked correctly as well? Oh you=E2=80=99re right, from a quick look at continuations.c, a continuati= on=E2=80=99s stack appears to be conservatively scanned (allocated with =E2=80=98scm_gc_malloc=E2=80=99). My intuition is that it=E2=80=99s =E2=80=9Cgood enough=E2=80=9D in most cas= es, but could affect GC performance a tiny bit in continuation-heavy code, such as Fibers. Ludo=E2=80=99.