linux-kernel - RE: [PATCH v3 4/4] mm/slub: correct the default value of slub_min

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Message-ID: <PH0PR11MB5192344A2E71FBC7F5CC8918EC8CA@PH0PR11MB5192.namprd11.prod.outlook.com>
Date:   Thu, 14 Dec 2023 14:11:26 +0000
From:   "Song, Xiongwei" <Xiongwei.Song@...driver.com>
To:     Vlastimil Babka <vbabka@...e.cz>,
        "sxwjean@...com" <sxwjean@...com>,
        "42.hyeyoo@...il.com" <42.hyeyoo@...il.com>,
        "cl@...ux.com" <cl@...ux.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>
CC:     "penberg@...nel.org" <penberg@...nel.org>,
        "rientjes@...gle.com" <rientjes@...gle.com>,
        "iamjoonsoo.kim@....com" <iamjoonsoo.kim@....com>,
        "roman.gushchin@...ux.dev" <roman.gushchin@...ux.dev>,
        "corbet@....net" <corbet@....net>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v3 4/4] mm/slub: correct the default value of
 slub_min_objects in doc



> -----Original Message-----
> From: Vlastimil Babka <vbabka@...e.cz>
> Sent: Wednesday, December 13, 2023 7:23 PM
> To: Song, Xiongwei <Xiongwei.Song@...driver.com>; sxwjean@...com;
> 42.hyeyoo@...il.com; cl@...ux.com; linux-mm@...ck.org
> Cc: penberg@...nel.org; rientjes@...gle.com; iamjoonsoo.kim@....com;
> roman.gushchin@...ux.dev; corbet@....net; keescook@...omium.org; arnd@...db.de;
> akpm@...ux-foundation.org; gregkh@...uxfoundation.org; linux-doc@...r.kernel.org; linux-
> kernel@...r.kernel.org
> Subject: Re: [PATCH v3 4/4] mm/slub: correct the default value of slub_min_objects in doc
> 
> 
> On 12/9/23 14:59, Song, Xiongwei wrote:
> > I didn't change description as you mentioned because slab_min_objects doesn't
> > save the calculated value based on the number of processors, but the local
> > variables min_objects doesn't.
> 
> Hm I think that's less helpful. The user/admin who will read the doc doesn't
> care about implementation details such as value of a variable, but what's
> the actual observable default behavior, and that is still the automatic
> scaling, right?

Ok, sure. Will update. 

Thanks.