From: Hillf Danton <hdanton@sina.com>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Hillf Danton <hdanton@sina.com>, linux-mm <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Matthew Wilcox <willy@infradead.org>,
Michal Hocko <mhocko@suse.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Shakeel Butt <shakeelb@google.com>,
Minchan Kim <minchan@kernel.org>, Mel Gorman <mgorman@suse.de>,
Vladimir Davydov <vdavydov.dev@gmail.com>,
Jan Kara <jack@suse.cz>
Subject: Re: [RFC v2] mm: add page preemption
Date: Mon, 28 Oct 2019 21:55:33 +0800 [thread overview]
Message-ID: <20191028135533.17696-1-hdanton@sina.com> (raw)
In-Reply-To: <20191026112808.14268-1-hdanton@sina.com>
Date: Mon, 28 Oct 2019 15:26:09 +0300 Kirill A. Shutemov wrote:
>
> On Sat, Oct 26, 2019 at 07:28:08PM +0800, Hillf Danton wrote:
> > @@ -218,6 +219,9 @@ struct page {
> >
> > #ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
> > int _last_cpupid;
> > +#else
> > + int prio;
> > +#define CONFIG_PAGE_PREEMPTION PP
> > #endif
> > } _struct_page_alignment;
> >
> [...]
> a lot of cache misses that this change would generate.
Queued on todo list. Thanks.
Hillf
next prev parent reply other threads:[~2019-10-28 13:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-26 11:28 Hillf Danton
2019-10-28 12:26 ` Kirill A. Shutemov
2019-10-28 13:55 ` Hillf Danton [this message]
2019-10-28 15:56 ` Johannes Weiner
2019-10-29 3:04 ` Hillf Danton
2019-10-29 8:41 ` Michal Hocko
2019-10-29 15:27 ` Johannes Weiner
2019-10-29 12:30 ` Hillf Danton
2019-10-29 13:26 ` David Hildenbrand
2019-10-29 13:41 ` Michal Hocko
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