Date: Sat, 04 Feb 2023 21:35:29 +0100 From: Steffen Nurpmeso <steffen@sdaoden.eu> To: Mateusz Guzik <mjg@FreeBSD.org> Cc: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: Re: git: d9d5f2c042a5 - main - cpuset: add --count Message-ID: <20230204203529.CusFt%steffen@sdaoden.eu> In-Reply-To: <202302041751.314HpRrn042970@gitrepo.freebsd.org> References: <202302041751.314HpRrn042970@gitrepo.freebsd.org>
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Mateusz Guzik wrote in <202302041751.314HpRrn042970@gitrepo.freebsd.org>: |The branch main has been updated by mjg: | |URL: https://cgit.FreeBSD.org/src/commit/?id=d9d5f2c042a51a9f0dd69eb1fc3\ |49efd81ffa483 | |commit d9d5f2c042a51a9f0dd69eb1fc349efd81ffa483 |Author: Mateusz Guzik <mjg@FreeBSD.org> |AuthorDate: 2023-02-04 17:47:41 +0000 |Commit: Mateusz Guzik <mjg@FreeBSD.org> |CommitDate: 2023-02-04 17:50:41 +0000 | | cpuset: add --count | | Can be used to count the number of hardware threads in the cpu set. ... | The intent is to replace calls to sysctl hw.ncpu and kern.smp.cpus \ | which | can be found in the tree, which are not adequate given existence of | cpusets. This is great (in respect to a #freebsd IRC from 2021-07-02)! Are there plans to address 19:26 < RhodiumToad> and in fact sysconf(_SC_NPROCESSORS_ONLN) is implemented as sysctl hw.ncpu or 19:25 < RhodiumToad> on fbsd 13 on a 4-cpu box, cpuset -l 0-1 getconf _NPROCESSORS_ONLN returns 4 rather than 2 or even add a shallow usr.bin/nproc(1) that does only this operation, as in Linux? (Or ln(1) it and check out argv[0] to do so?) Having a "portable" thing would be great. --steffen | |Der Kragenbaer, The moon bear, |der holt sich munter he cheerfully and one by one |einen nach dem anderen runter wa.ks himself off |(By Robert Gernhardt)
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