From: Andrew Morton <akpm@linux-foundation.org>
To: David Rientjes <rientjes@google.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>,
Vlastimil Babka <vbabka@suse.cz>,
Mel Gorman <mgorman@techsingularity.net>,
Johannes Weiner <hannes@cmpxchg.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [patch -mm] mm, vmstat: suppress pcp stats for unpopulated zones in zoneinfo
Date: Mon, 6 Mar 2017 14:11:42 -0800 [thread overview]
Message-ID: <20170306141142.f3b22bc0ba43814f546bf3a0@linux-foundation.org> (raw)
In-Reply-To: <alpine.DEB.2.10.1703061400500.46428@chino.kir.corp.google.com>
On Mon, 6 Mar 2017 14:03:32 -0800 (PST) David Rientjes <rientjes@google.com> wrote:
> After "mm, vmstat: print non-populated zones in zoneinfo", /proc/zoneinfo
> will show unpopulated zones.
>
> The per-cpu pageset statistics are not relevant for unpopulated zones and
> can be potentially lengthy, so supress them when they are not interesting.
>
> Also moves lowmem reserve protection information above pcp stats since it
> is relevant for all zones per vm.lowmem_reserve_ratio.
Well it's not strictly back-compatible, but /proc/zoneinfo is such a
mess that parsers will be few and hopefully smart enough to handle
this.
btw,
pagesets
cpu: 0
count: 118
high: 186
batch: 31
vm stats threshold: 72
cpu: 1
count: 53
high: 186
batch: 31
vm stats threshold: 72
Should the "vm stats threshold" thing be indented further?
Do we need to print it out N times anyway? Can different CPUs have
different values?
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next prev parent reply other threads:[~2017-03-06 22:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-02 23:26 [patch] mm, zoneinfo: print non-populated zones David Rientjes
2017-03-03 13:35 ` Anshuman Khandual
2017-03-03 22:46 ` David Rientjes
2017-03-03 22:53 ` [patch v2] mm, vmstat: print non-populated zones in zoneinfo David Rientjes
2017-03-04 8:21 ` Anshuman Khandual
2017-03-06 22:03 ` [patch -mm] mm, vmstat: suppress pcp stats for unpopulated " David Rientjes
2017-03-06 22:11 ` Andrew Morton [this message]
2017-03-08 14:42 ` [patch v2] mm, vmstat: print non-populated " Michal Hocko
2017-03-17 8:57 ` Michal Hocko
2017-03-17 21:21 ` David Rientjes
2017-05-03 23:41 ` [PATCH] mm, vmstat: Remove spurious WARN() during zoneinfo print Reza Arbab
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