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Hermes SMTP Server) with ESMTPA ID 1abcd3db18bf15272f64f101035350ae; Tue, 05 Sep 2023 08:45:18 +0000 (UTC) Content-Type: text/plain; charset=us-ascii 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 (Mac OS X Mail 16.0 \(3731.700.6\)) Subject: Re: An attempted test of main's "git: 2ad756a6bbb3" "merge openzfs/zfs@95f71c019" possible file odd result From: Mark Millard In-Reply-To: <6990186B-E85B-4D64-8202-4B9ECBD876FD@yahoo.com> Date: Tue, 5 Sep 2023 01:45:06 -0700 Cc: dev-commits-src-main@freebsd.org, Current FreeBSD Content-Transfer-Encoding: quoted-printable Message-Id: <28614E14-6C55-4183-9315-A098C392B3AC@yahoo.com> References: <673A446E-6F94-451E-910F-079F678C5289@yahoo.com> <2BDD30B5-6248-4EC3-83C8-0499E0717D1D@yahoo.com> <69028684-c2cd-8f0c-617f-d0763c08dbe4@FreeBSD.org> <8D832756-6754-4D1E-AE8D-E716FE08F747@yahoo.com> <5605506b-5059-fb72-3e5a-741863d54444@FreeBSD.org> <5724006A-F4C4-42CA-98A9-90C5EB914F5E@yahoo.com> <4E888EC8-4B06-4139-90DF-59AFBA700A5F@yahoo.com> <6990186B-E85B-4D64-8202-4B9ECBD876FD@yahoo.com> To: Alexander Motin X-Mailer: Apple Mail (2.3731.700.6) X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.48 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.98)[-0.979]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; MIME_GOOD(-0.10)[text/plain]; RCPT_COUNT_THREE(0.00)[3]; FROM_HAS_DN(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; BLOCKLISTDE_FAIL(0.00)[98.137.65.84:server fail]; TO_MATCH_ENVRCPT_SOME(0.00)[]; MLMMJ_DEST(0.00)[freebsd-current@freebsd.org]; RCVD_IN_DNSWL_NONE(0.00)[98.137.65.84:from]; ARC_NA(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; RWL_MAILSPIKE_POSSIBLE(0.00)[98.137.65.84:from]; DKIM_TRACE(0.00)[yahoo.com:+]; FREEMAIL_FROM(0.00)[yahoo.com]; TO_DN_SOME(0.00)[]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; RCVD_COUNT_TWO(0.00)[2] X-Rspamd-Queue-Id: 4Rfzbl1lmjz3HPH On Sep 5, 2023, at 00:00, Mark Millard wrote: > On Sep 4, 2023, at 22:06, Mark Millard wrote: >=20 >> . . . >=20 > So I tried 30 for per_txg_dirty_frees_percent for 2 contexts: > autotrim on > vs. > autotrim off >=20 > where there was 100 GiByte+ to delete after a poudriere > bulk run. >=20 > autotrim on: takes a fair time to delete even 1 GiByte of the 100+ = GiByte > vs. > autotrim off: takes less time to delete more. >=20 > The difference is very visible via "gstat -spod" use. >=20 > autotrim on likely makes things less concurrent, somewhat > like USB3 storage having only one command to the device > at a time for FreeBSD. autotrim on seems to prevent the > larger unit of work from being an effective way to > decrease the time required, instead possibly increasing > the time requirement. >=20 > That may be an example of the context dependendency for > what value of per_txg_dirty_frees_percent to use to > avoid wasting much time. Trying autotrim off with 30 for per_txg_dirty_frees_percent got me the oddity/extra-message (just using 32 builders to match the hardware thread count): . . . [00:03:25] [32] [00:00:00] Builder starting [00:03:43] [01] [00:00:18] Finished print/indexinfo | indexinfo-0.3.1: = Success [00:03:43] [01] [00:00:00] Building devel/gettext-runtime | = gettext-runtime-0.22_1 [00:05:20] [01] [00:01:37] Finished devel/gettext-runtime | = gettext-runtime-0.22_1: Success 23/.p/cleaning/rdeps/gettext-runtime-0.22_1/chemtool-1.6.14_4 copy: open = failed: No such file or directory [00:05:23] [01] [00:00:00] Building devel/gmake | gmake-4.3_2 [00:05:55] [02] [00:02:30] Builder started . . . (Not that I know if the context actually matters and I have no clue if I'll ever get a repetition.) =3D=3D=3D Mark Millard marklmi at yahoo.com