From: Michal Hocko <mhocko@kernel.org>
To: Spencer Baugh <sbaugh@catern.com>
Cc: Toshi Kani <toshi.kani@hp.com>,
Andrew Morton <akpm@linux-foundation.org>,
Fengguang Wu <fengguang.wu@intel.com>,
Joern Engel <joern@logfs.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Mel Gorman <mgorman@suse.de>,
Johannes Weiner <hannes@cmpxchg.org>,
Shachar Raindel <raindel@mellanox.com>,
Boaz Harrosh <boaz@plexistor.com>,
Andy Lutomirski <luto@amacapital.net>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrey Ryabinin <a.ryabinin@samsung.com>,
Roman Pen <r.peniaev@gmail.com>,
Andrey Konovalov <adech.fo@gmail.com>,
Eric Dumazet <edumazet@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Rob Jones <rob.jones@codethink.co.uk>,
WANG Chao <chaowang@redhat.com>,
open list <linux-kernel@vger.kernel.org>,
"open list:MEMORY MANAGEMENT" <linux-mm@kvack.org>,
Joern Engel <joern@purestorage.com>,
Spencer Baugh <Spencer.baugh@purestorage.com>
Subject: Re: [PATCH] mm: add resched points to remap_pmd_range/ioremap_pmd_range
Date: Fri, 24 Jul 2015 09:04:21 +0200 [thread overview]
Message-ID: <20150724070420.GF4103@dhcp22.suse.cz> (raw)
In-Reply-To: <1437688476-3399-3-git-send-email-sbaugh@catern.com>
On Thu 23-07-15 14:54:33, Spencer Baugh wrote:
> From: Joern Engel <joern@logfs.org>
>
> Mapping large memory spaces can be slow and prevent high-priority
> realtime threads from preempting lower-priority threads for a long time.
How can a lower priority task block the high priority one? Do you have
preemption disabled?
[...]
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2015-07-24 7:04 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-23 21:54 [PATCH] mm: add resched points to remap_pmd_range/ioremap_pmd_range Spencer Baugh
2015-07-23 23:32 ` Toshi Kani
2015-07-24 17:00 ` Jörn Engel
2015-07-24 7:04 ` Michal Hocko [this message]
2015-07-24 16:56 ` Jörn Engel
2015-07-27 7:08 ` Michal Hocko
2015-07-27 8:29 ` Mike Galbraith
2015-07-27 15:18 ` Jörn Engel
2015-07-28 13:32 ` Michal Hocko
2015-07-28 17:08 ` Jörn Engel
2015-07-29 9:54 ` Michal Hocko
2015-07-30 15:22 ` Mike Galbraith
2015-07-30 16:58 ` Jörn Engel
2015-07-30 18:55 ` Mike Galbraith
2015-08-09 9:25 ` [hack] sched: create PREEMPT_VOLUNTARY_RT and some RT specific resched points Mike Galbraith
2015-08-09 10:51 ` Mike Galbraith
2015-08-06 8:55 ` [PATCH] mm: add resched points to remap_pmd_range/ioremap_pmd_range Mike Galbraith
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