From: Ivan Teterevkov <ivan.teterevkov@nutanix.com>
To: Vlastimil Babka <vbabka@suse.cz>, Michal Hocko <mhocko@kernel.org>
Cc: "corbet@lwn.net" <corbet@lwn.net>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"mchehab+samsung@kernel.org" <mchehab+samsung@kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"jpoimboe@redhat.com" <jpoimboe@redhat.com>,
"pawan.kumar.gupta@linux.intel.com"
<pawan.kumar.gupta@linux.intel.com>,
"jgross@suse.com" <jgross@suse.com>,
"oneukum@suse.com" <oneukum@suse.com>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: RE: [PATCH] mm/vmscan: add vm_swappiness configuration knobs
Date: Mon, 16 Mar 2020 16:14:48 +0000 [thread overview]
Message-ID: <BL0PR02MB560169A483F201F1855C41A3E9F90@BL0PR02MB5601.namprd02.prod.outlook.com> (raw)
In-Reply-To: <4ea2e014-17ea-6d1e-a6cd-775fb6550cd2@suse.cz>
On Mon, 16 Mar 2020, Vlastimil Babka wrote:
>
> Setting the vm_swappiness specific case aside, I wonder if if would be
> useful to be able to emulate any sysctl with a kernel parameter,
> i.e. boot the kernel with sysctl.vm.swappiness=X
> There are already some options that provide kernel parameter as well
> as sysctl, why not just support all.
>
It looks like a missing feature to me but I've always assumed that
there is some unobvious philosophical reasoning behind not having
such interfaces in the kernel. The feature-wise I'd be one of the
first users of the sysctl command-line parameters.
next prev parent reply other threads:[~2020-03-16 16:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-11 17:45 Ivan Teterevkov
2020-03-11 19:31 ` David Rientjes
2020-03-12 12:48 ` Ivan Teterevkov
2020-03-12 13:36 ` Matthew Wilcox
2020-03-12 14:03 ` Chris Down
2020-03-13 10:49 ` Ivan Teterevkov
2020-03-13 21:50 ` David Rientjes
2020-03-16 16:03 ` Ivan Teterevkov
2020-03-12 9:25 ` Michal Hocko
2020-03-12 12:54 ` Ivan Teterevkov
2020-03-12 13:26 ` Michal Hocko
2020-03-16 14:53 ` Vlastimil Babka
2020-03-16 16:14 ` Ivan Teterevkov [this message]
2020-03-17 8:29 ` Michal Hocko
2020-03-17 14:51 ` Vlastimil Babka
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