From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: =?utf-8?Q?Hans_=C3=85berg?= Newsgroups: gmane.lisp.guile.user Subject: Re: GC thread performance Date: Tue, 28 Nov 2017 00:13:11 +0100 Message-ID: References: <192F0231-DBB4-40D4-B3D6-0BAAB254CC59@telia.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 (Mac OS X Mail 11.1 \(3445.4.7\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1511824424 10502 195.159.176.226 (27 Nov 2017 23:13:44 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 27 Nov 2017 23:13:44 +0000 (UTC) Cc: Guile User To: Stefan Israelsson Tampe Original-X-From: guile-user-bounces+guile-user=m.gmane.org@gnu.org Tue Nov 28 00:13:39 2017 Return-path: Envelope-to: guile-user@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eJSam-0002HY-IR for guile-user@m.gmane.org; Tue, 28 Nov 2017 00:13:36 +0100 Original-Received: from localhost ([::1]:35201 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eJSas-0005O6-05 for guile-user@m.gmane.org; Mon, 27 Nov 2017 18:13:43 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40695) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eJSaT-0005O1-Cp for guile-user@gnu.org; Mon, 27 Nov 2017 18:13:18 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eJSaQ-00023x-6v for guile-user@gnu.org; Mon, 27 Nov 2017 18:13:17 -0500 Original-Received: from v-smtpout2.han.skanova.net ([81.236.60.155]:48656) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eJSaP-00023a-Vp for guile-user@gnu.org; Mon, 27 Nov 2017 18:13:14 -0500 Original-Received: from [10.0.1.4] ([90.227.203.185]) by cmsmtp with SMTP id JSaOegMBVAXuLJSaOeWsQ3; Tue, 28 Nov 2017 00:13:12 +0100 In-Reply-To: X-Mailer: Apple Mail (2.3445.4.7) X-CMAE-Envelope: MS4wfAYEQiqnanI9D9yDduO4CCmr2wtTyMMfStOIRqtseSJLnqk/1SBd68PyRF6QFLlWJ3OKDrLhRtN+DPioKimLzCQbMdHUWYY8g6w/B3vZfaWqwjl7Bb6B 9yCR1rconWovZF11EUPxhqrK6gKznuCeSZkmvV2Qlqw/DwwgTHqzghNPhwbojpPzH5/YamEK33/4RgRzzVczmlsUBo9GR7gHWJQ= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 81.236.60.155 X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-user-bounces+guile-user=m.gmane.org@gnu.org Original-Sender: "guile-user" Xref: news.gmane.org gmane.lisp.guile.user:14301 Archived-At: > On 28 Nov 2017, at 00:05, Stefan Israelsson Tampe = wrote: >=20 > There are lists of free memory kept in each thread so usually small = allocation is one multithreaded large allocation and then > a bunch of small allocation in thread consuming that large allocation. = So for small memory segments I would say that the=20 > overhead probably is neglible. I saw overhead also for the small allocations, 20-30% maybe. This is in = a program that makes a lot of allocations relative other computations. = So that made me wonder about Guile.