From nobody Mon Jan 29 00:05:03 2024 X-Original-To: freebsd-stable@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 4TNT8209Glz57bc3 for ; Mon, 29 Jan 2024 00:05:06 +0000 (UTC) (envelope-from david@catwhisker.org) Received: from mx.catwhisker.org (mx.catwhisker.org [107.204.234.170]) (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 did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4TNT813wBDz4lVp for ; Mon, 29 Jan 2024 00:05:05 +0000 (UTC) (envelope-from david@catwhisker.org) Authentication-Results: mx1.freebsd.org; none Received: from albert.catwhisker.org (localhost [127.0.0.1]) by albert.catwhisker.org (8.17.1/8.17.1) with ESMTP id 40T053KM006107; Mon, 29 Jan 2024 00:05:03 GMT (envelope-from david@albert.catwhisker.org) Received: (from david@localhost) by albert.catwhisker.org (8.17.1/8.17.1/Submit) id 40T053Ni006106; Sun, 28 Jan 2024 16:05:03 -0800 (PST) (envelope-from david) Date: Sun, 28 Jan 2024 16:05:03 -0800 From: David Wolfskill To: Mark Millard Cc: FreeBSD-STABLE Mailing List Subject: Re: Should changes in src/usr.sbin/bhyve/ trigger an llvm rebuild? Message-ID: Reply-To: stable@freebsd.org Mail-Followup-To: stable@freebsd.org, Mark Millard , FreeBSD-STABLE Mailing List References: <5BCB8F1A-B5D5-4506-87E1-8B26E713C6F5@yahoo.com> <8A79DE24-403E-4E73-82B6-0E5CF4F27604@yahoo.com> List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="gwCD4wmeEq1kYHVT" Content-Disposition: inline In-Reply-To: <8A79DE24-403E-4E73-82B6-0E5CF4F27604@yahoo.com> X-Rspamd-Queue-Id: 4TNT813wBDz4lVp X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7018, ipnet:107.192.0.0/12, country:US] --gwCD4wmeEq1kYHVT Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Jan 28, 2024 at 03:00:59PM -0800, Mark Millard wrote: > ... > To be clear, referencing details of your context: >=20 > When you had the stable/14 machines at 1c090bf880bf: >=20 > A) You built (META_MODE): 63a7e799b32c > B) You installed: 63a7e799b32c > C) You rebooted into: 63a7e799b32c >=20 > I'm claiming that next doing: >=20 > D) build again (still META_MODE): 63a7e799b32c >=20 > would have rebuilt llvm at that point, the > time-relationship cause(s) being set up > during (B). As it happens, I rather fumble-fingered the (intended) reboot on the 2nd laptop (and started another rebuild instead). And I do these within script(1), as it's handy to have a record. Note that this differes from the sequence you cite above, in that I failed to do the reboot. So I powered it back up and -- without updating sources (or the local repo mirror, for that matter) -- did another rebuild. Here is an extract of some salient lines from the typescript file: g1-48(14.0-S)[4] egrep ' built in |Installing .* (started|completed)|Removi= ng old libraries| stable/14-n' s1 FreeBSD g1-48.catwhisker.org 14.0-STABLE FreeBSD 14.0-STABLE #38 stable/14-= n266551-63a7e799b32c: Sat Jan 27 11:40:05 UTC 2024 root@g1-48.catwhiske= r.org:/common/S1/obj/usr/src/amd64.amd64/sys/CANARY amd64 1400506 1400506 >>> World built in 2351 seconds, ncpu: 8, make -j16 >>> Kernel(s) CANARY built in 898 seconds, ncpu: 8, make -j16 >>> Installing kernel CANARY completed on Sun Jan 28 12:25:27 UTC 2024 >>> Installing everything started on Sun Jan 28 12:25:57 UTC 2024 >>> Installing everything completed on Sun Jan 28 12:28:01 UTC 2024 FreeBSD g1-48.catwhisker.org 14.0-STABLE FreeBSD 14.0-STABLE #38 stable/14-= n266551-63a7e799b32c: Sat Jan 27 11:40:05 UTC 2024 root@g1-48.catwhiske= r.org:/common/S1/obj/usr/src/amd64.amd64/sys/CANARY amd64 1400506 1400506 >>> World built in 116 seconds, ncpu: 8, make -j16 >>> Kernel(s) CANARY built in 920 seconds, ncpu: 8, make -j16 >>> Installing kernel CANARY completed on Sun Jan 28 12:47:55 UTC 2024 >>> Installing everything started on Sun Jan 28 12:48:25 UTC 2024 >>> Installing everything completed on Sun Jan 28 12:50:01 UTC 2024 FreeBSD g1-48.catwhisker.org 14.0-STABLE FreeBSD 14.0-STABLE #40 stable/14-= n266554-2ee407b6068a: Sun Jan 28 12:39:17 UTC 2024 root@g1-48.catwhiske= r.org:/common/S1/obj/usr/src/amd64.amd64/sys/CANARY amd64 1400506 1400506 >>> Removing old libraries FreeBSD g1-48.catwhisker.org 14.0-STABLE FreeBSD 14.0-STABLE #40 stable/14-= n266554-2ee407b6068a: Sun Jan 28 12:39:17 UTC 2024 root@g1-48.catwhiske= r.org:/common/S1/obj/usr/src/amd64.amd64/sys/CANARY amd64 1400506 1400506 >>> World built in 124 seconds, ncpu: 8, make -j16 >>> Kernel(s) CANARY built in 901 seconds, ncpu: 8, make -j16 >>> Installing kernel CANARY completed on Sun Jan 28 23:34:39 UTC 2024 >>> Installing everything started on Sun Jan 28 23:35:09 UTC 2024 >>> Installing everything completed on Sun Jan 28 23:37:16 UTC 2024 FreeBSD g1-48.catwhisker.org 14.0-STABLE FreeBSD 14.0-STABLE #41 stable/14-= n266554-2ee407b6068a: Sun Jan 28 23:26:10 UTC 2024 root@g1-48.catwhiske= r.org:/common/S1/obj/usr/src/amd64.amd64/sys/CANARY amd64 1400506 1400506 >>> Removing old libraries g1-48(14.0-S)[5] (The ">>> Removing old libraries" is an artifact from "make delete-old-libs", which I do on the first reboot after a build.) If we just look at the "make buildworld" times, we see: >>> World built in 2351 seconds, ncpu: 8, make -j16 >>> World built in 116 seconds, ncpu: 8, make -j16 >>> World built in 124 seconds, ncpu: 8, make -j16 I suggest that -- within *this* "experiment's" error -- 116 sec is not significantly different from 124 sec, but that 2351 sec is significantly different from either. > .... Peace, david --=20 David H. Wolfskill david@catwhisker.org Do these ends really justify those means? See https://www.catwhisker.org/~david/publickey.gpg for my public key. --gwCD4wmeEq1kYHVT Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iNUEARYKAH0WIQSTLzOSbomIK53fjFliipiWhXYx5QUCZbbrr18UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0OTMy RjMzOTI2RTg5ODgyQjlEREY4QzU5NjI4QTk4OTY4NTc2MzFFNQAKCRBiipiWhXYx 5aujAP41F5fOPOAT++5oGNVxfYBrCsaC4oWGJ0HFCCDFFmSLWgD9Gm8IdbOIU0X3 9fE2g7Qu0OgQMSh5L+KezpKR+uFyqgE= =0GKs -----END PGP SIGNATURE----- --gwCD4wmeEq1kYHVT--