From nobody Fri Nov 4 03:48:15 2022 X-Original-To: current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4N3RRk2ZqSz4grYR; Fri, 4 Nov 2022 03:48:18 +0000 (UTC) (envelope-from glebius@freebsd.org) Received: from cell.glebi.us (glebi.us [162.251.186.162]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "cell.glebi.us", Issuer "cell.glebi.us" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4N3RRj098xz44q6; Fri, 4 Nov 2022 03:48:16 +0000 (UTC) (envelope-from glebius@freebsd.org) Received: from cell.glebi.us (localhost [127.0.0.1]) by cell.glebi.us (8.16.1/8.16.1) with ESMTPS id 2A43mFoC005348 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Thu, 3 Nov 2022 20:48:15 -0700 (PDT) (envelope-from glebius@freebsd.org) Received: (from glebius@localhost) by cell.glebi.us (8.16.1/8.16.1/Submit) id 2A43mFBW005347; Thu, 3 Nov 2022 20:48:15 -0700 (PDT) (envelope-from glebius@freebsd.org) X-Authentication-Warning: cell.glebi.us: glebius set sender to glebius@freebsd.org using -f Date: Thu, 3 Nov 2022 20:48:15 -0700 From: Gleb Smirnoff To: current@freebsd.org Cc: net@freebsd.org Subject: trpt(8) to be decomissioned Message-ID: List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Queue-Id: 4N3RRj098xz44q6 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=softfail (mx1.freebsd.org: 162.251.186.162 is neither permitted nor denied by domain of glebius@freebsd.org) smtp.mailfrom=glebius@freebsd.org X-Spamd-Result: default: False [-3.10 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.999]; MIME_GOOD(-0.10)[text/plain]; FROM_EQ_ENVFROM(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; MLMMJ_DEST(0.00)[current@freebsd.org,net@freebsd.org]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:27348, ipnet:162.251.186.0/24, country:US]; RCVD_COUNT_THREE(0.00)[3]; DMARC_NA(0.00)[freebsd.org]; R_SPF_SOFTFAIL(0.00)[~all]; FROM_HAS_DN(0.00)[]; FREEFALL_USER(0.00)[glebius]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; HAS_XAW(0.00)[]; TO_DN_NONE(0.00)[]; MID_RHS_MATCH_FROM(0.00)[] X-ThisMailContainsUnwantedMimeParts: N Hi, trpt(8) is utility to pull TCP debugging data from the kernel in 4.2BSD. We still have it in the base, with corresponding TCPDEBUG option in the kernel and SO_DEBUG socket option. At the same time we have much more powerful debugging facilities for TCP, e.g. the Dtrace probing, the TCP black box logging and siftr. These are the tools that modern developers use. Already touched this topic with rscheff@, tuexen@, rrs@ and jtl@. None of them new what trpt(8) is :) Looks like a good justification to me. -- Gleb Smirnoff