From: Rik van Riel <riel@redhat.com>
To: Vlastimil Babka <vbabka@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrea Arcangeli <aarcange@redhat.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Mel Gorman <mgorman@techsingularity.net>,
David Rientjes <rientjes@google.com>,
Michal Hocko <mhocko@suse.com>,
Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [PATCH 4.6] mm: wake kcompactd before kswapd's short sleep
Date: Wed, 20 Apr 2016 14:05:44 -0400 [thread overview]
Message-ID: <1461175544.3200.20.camel@redhat.com> (raw)
In-Reply-To: <1461098191-29304-1-git-send-email-vbabka@suse.cz>
On Tue, 2016-04-19 at 22:36 +0200, Vlastimil Babka wrote:
> When kswapd goes to sleep it checks if the node is balanced and at
> first it
> sleeps only for HZ/10 time, then rechecks if the node is still
> balanced and
> nobody has woken it during the initial sleep. Only then it goes fully
> sleep
> until an allocation slowpath wakes it up again.
>
Reviewed-by: Rik van Riel <riel@redhat.com>
WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Vlastimil Babka <vbabka@suse.cz>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrea Arcangeli <aarcange@redhat.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Mel Gorman <mgorman@techsingularity.net>,
David Rientjes <rientjes@google.com>,
Michal Hocko <mhocko@suse.com>,
Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [PATCH 4.6] mm: wake kcompactd before kswapd's short sleep
Date: Wed, 20 Apr 2016 14:05:44 -0400 [thread overview]
Message-ID: <1461175544.3200.20.camel@redhat.com> (raw)
In-Reply-To: <1461098191-29304-1-git-send-email-vbabka@suse.cz>
On Tue, 2016-04-19 at 22:36 +0200, Vlastimil Babka wrote:
> When kswapd goes to sleep it checks if the node is balanced and at
> first it
> sleeps only for HZ/10 time, then rechecks if the node is still
> balanced and
> nobody has woken it during the initial sleep. Only then it goes fully
> sleep
> until an allocation slowpath wakes it up again.
>
Reviewed-by: Rik van Riel <riel@redhat.com>
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next prev parent reply other threads:[~2016-04-20 18:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-19 20:36 [PATCH 4.6] mm: wake kcompactd before kswapd's short sleep Vlastimil Babka
2016-04-19 20:36 ` Vlastimil Babka
2016-04-20 18:05 ` Rik van Riel [this message]
2016-04-20 18:05 ` Rik van Riel
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