From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <9front-bounces@9front.inri.net> X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: from 9front.inri.net (9front.inri.net [168.235.81.73]) by inbox.vuxu.org (Postfix) with ESMTP id C7C7224418 for ; Mon, 5 Aug 2024 00:43:59 +0200 (CEST) Received: from pv50p00im-tydg10011801.me.com ([17.58.6.52]) by 9front; Sun Aug 4 18:42:34 -0400 2024 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=icloud.com; s=1a1hai; t=1722811351; bh=fyZSykhMJT7hcejA2lvs5qNwa6809XuM3R7kTq57nGg=; h=Content-Type:From:Mime-Version:Subject:Date:Message-Id:To; b=kSP0LHhYywXwDf20NPOwLvOygPwXsdouKhYtyB1ufdRojZCKU1w0j2DUlWxX266Ag xO4APUxc2FCDnw5defPl4PTPixkzTpBVYLAvwVmp3Lu6Vg/dUcf26E6Yza4r4m34+A bAJNrFkEAb6i98yJLLw8gRxonF09KqtTcnou61Qpd2mUTpSTgOO3v1ypkZbN9VHUmH cfSjcJqgqCoNjB0BmOjAprcv5cKtOcgEVFvN9hb/STl3LzDZkEmNCjCxcBxtWu+JQY Ym8ra+bmHrQ8ALU3hnmJzZPynj0ryHA4ZfXmJkQrSQSP3bja2ljK8j2Lo5rK4TRX8C UOtm2g2I3Ieng== Received: from smtpclient.apple (pv50p00im-dlb-asmtp-mailmevip.me.com [17.56.9.10]) by pv50p00im-tydg10011801.me.com (Postfix) with ESMTPSA id 8520F80005C for <9front@9front.org>; Sun, 4 Aug 2024 22:42:30 +0000 (UTC) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: David Leimbach Mime-Version: 1.0 (1.0) Date: Sun, 4 Aug 2024 15:42:12 -0700 Message-Id: References: <1128D5CB3B7D4B5B13DA12E39DB7DBF5@eigenstate.org> In-Reply-To: <1128D5CB3B7D4B5B13DA12E39DB7DBF5@eigenstate.org> To: 9front@9front.org X-Mailer: iPhone Mail (21F90) X-Proofpoint-GUID: FtqqngRcUfimnNDv1TVIRjazb6BY1P2f X-Proofpoint-ORIG-GUID: FtqqngRcUfimnNDv1TVIRjazb6BY1P2f X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-04_14,2024-08-02_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 mlxscore=0 phishscore=0 malwarescore=0 mlxlogscore=940 clxscore=1015 spamscore=0 adultscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2308100000 definitions=main-2408040151 List-ID: <9front.9front.org> List-Help: X-Glyph: ➈ X-Bullshit: deep-learning-oriented standard blockchain Subject: Re: [9front] Thoughts on Wayland? Reply-To: 9front@9front.org Precedence: bulk Sent from my iPhone > On Aug 4, 2024, at 3:28=E2=80=AFPM, ori@eigenstate.org wrote: >=20 > =EF=BB=BFQuoth David Leimbach : >>=20 >>>=20 >>>>=20 >>>> While it's theoretically possible to do mmap over 9p, it's not going to= >>>> be a good experience. >>=20 >> Is it substantially worse than mmap=E2=80=99ing over NFS? I can imagine a= lot of panic or deadlock cases but=E2=80=A6. Yeah that=E2=80=99s true for N= FS also. At least a core dump. >>=20 >=20 > I'm not familiar enough with the internals of the NFS > protocol to say for sure. >=20 > However, dont' just consider deadlock, consider coherence. > What happens if you put a mutex into shm, and two machines > try to lock it at the same time? >=20 > How do you avoid turning every single memory access into > a network round trip without some sort of sideband protocol? >=20 > What happens if a laptop participating in that coherence > mechanism gets its lid closed and hibernates for an hour or > three, and then comes back? It=E2=80=99s a nasty game of timeouts and hangups=E2=80=A6 like everything i= n distributed systems.=20