Date: Mon, 28 Jan 2019 09:24:20 +0100 From: "Babak Farrokhi" <farrokhi@FreeBSD.org> To: "Mark Saad" <nonesuch@longcount.org> Cc: "FreeBSD Hackers" <freebsd-hackers@freebsd.org> Subject: Re: CPU Isolation Message-ID: <AC6FACC4-2403-41B7-B7E6-738A692929A2@FreeBSD.org> In-Reply-To: <CAMXt9NbKwZAwv%2BWJ4yqmeMFmX38n=qjUqJSq4kOq2qdNSVEhHg@mail.gmail.com> References: <CAMXt9NbKwZAwv%2BWJ4yqmeMFmX38n=qjUqJSq4kOq2qdNSVEhHg@mail.gmail.com>
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This is an OpenPGP/MIME signed message (RFC 3156 and 4880). --=_MailMate_B7D54A7F-232F-420C-88B2-E4C3D7C8F327_= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable AFAIK there is no way to do it pre-boot. To do the isolation post-boot yo= ur best bet is cpuset(1) (with which I could not totally isolate cpu core= s as dedicated application cores). On 22 Jan 2019, at 19:29, Mark Saad wrote: > All > I am looking to setup a 12-STABLE box in a way that is similar to a > CentOS server I am running. > That server is setup using the boot option isocpus, to remove > cores/cpus from the kernel scheduler at boot. What I want to try on > 12-STABLE is to set aside some cores to run process and some kernel > threads that will only always run on a dedicated core with out the > chance for being preempted / interrupted by something else on that > core / cpu . What I do not see is a way to evict processes off a > running cpu post boot or a way to isolate them preboot. Am I missing > something? > > -- = > mark saad | nonesuch@longcount.org > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.o= rg" --=_MailMate_B7D54A7F-232F-420C-88B2-E4C3D7C8F327_= Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQKTBAEBCAB9FiEE8IFfiGG/LeryYenBayZ62F1jLpoFAlxOvDRfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEYw ODE1Rjg4NjFCRjJERUFGMjYxRTlDMTZCMjY3QUQ4NUQ2MzJFOUEACgkQayZ62F1j LpqkxhAAkKizxi6WNfxqTb4TztF9ospd99PtyYYnuLv0BgWXkFeJX5FDj4uLli3y ZYXjBpdo74cHWteNjufYtslUPktnDn0Ww9aNFSjbOn/3yFmkrBhOoJY3Y6BmKIUe BECNoJocuZCCmhgDCslNp6Gf3geEyF956NsEzlD1lF1+Ct8MRheq9rhMMBtCuleo 6031Xh5escWHudff3CU1sOYmhERMVfwLt9LvjYZXfuLCVPiSSAguSeDtbPqjspO6 ZeBSfeS1LsRJ5SdeIVwSpPte02w9/fO0/kave/gM6Ew02tNR2FQ7DaDFGkEzxyS/ uVQBCsOOJgqkMK+60qzhmFpy4MLWTpDNUniFLbTnKbkTQBvPH4j+osKp2Pzt3A84 8wZ2IyjdnUTTYz46zoJroGpCKfSpsV21VkmYPoJHoqd0ieEzk+upkjXYYWk3vEvT odwJKhC3AfMxf3DCnTlfWQruAdOjC7rvzYR/a3JvNmVpftXwcobd5mLsX07t8LRW 0m79RaL8AkXG5sYUzdzfzT8bBNXYKJSMxZWqtrvMW7azV0pguu5yiV1O6RqHL1Dq nWNo5Qo0HO3K4u+x+6gm/jusCyOYM3iGTkUycfL5XKsFCKqVYCyq+pPGGeT90RMX H+flHxW03f4ZpNNaW/IxDffjyK/VTDwD/utcYB35mJaV6viCkEQ= =k/A6 -----END PGP SIGNATURE----- --=_MailMate_B7D54A7F-232F-420C-88B2-E4C3D7C8F327_=--
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