From: Alexander Duyck <alexander.duyck@gmail.com>
To: linux-mm <linux-mm@kvack.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-nvdimm@lists.01.org
Cc: pavel.tatashin@microsoft.com, Michal Hocko <mhocko@suse.com>,
Dave Hansen <dave.hansen@intel.com>,
jglisse@redhat.com, Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: Re: [PATCH 4/4] nvdimm: Trigger the device probe on a cpu local to the device
Date: Mon, 10 Sep 2018 17:37:50 -0700 [thread overview]
Message-ID: <CAKgT0UceRHjfoKPxAJEchX4O91j_mtCQxqjTSQ=GJSoSOGbWmg@mail.gmail.com> (raw)
In-Reply-To: <20180910234400.4068.15541.stgit@localhost.localdomain>
On Mon, Sep 10, 2018 at 4:44 PM Alexander Duyck
<alexander.duyck@gmail.com> wrote:
>
> From: Alexander Duyck <alexander.h.duyck@intel.com>
>
> This patch is based off of the pci_call_probe function used to initialize
> PCI devices. The general idea here is to move the probe call to a location
> that is local to the memory being initialized. By doing this we can shave
> significant time off of the total time needed for initialization.
>
> With this patch applied I see a significant reduction in overall init time
> as without it the init varied between 23 and 37 seconds to initialize a 3GB
> node. With this patch applied the variance is only between 23 and 26
> seconds to initialize each node.
Same mistake here as in patch 1. It is 3TB, not 3GB. I will fix for
the next version.
- Alex
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next prev parent reply other threads:[~2018-09-11 0:38 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-10 23:43 [PATCH 0/4] Address issues slowing persistent memory initialization Alexander Duyck
2018-09-10 23:43 ` [PATCH 1/4] mm: Provide kernel parameter to allow disabling page init poisoning Alexander Duyck
2018-09-11 0:35 ` Alexander Duyck
2018-09-11 16:50 ` Dan Williams
2018-09-11 20:01 ` Alexander Duyck
2018-09-11 20:24 ` Dan Williams
2018-09-12 13:24 ` Pasha Tatashin
2018-09-12 14:10 ` Michal Hocko
2018-09-12 14:49 ` Alexander Duyck
2018-09-12 15:23 ` Dave Hansen
2018-09-12 16:36 ` Alexander Duyck
2018-09-12 16:43 ` Dave Hansen
2018-09-10 23:43 ` [PATCH 2/4] mm: Create non-atomic version of SetPageReserved for init use Alexander Duyck
2018-09-12 13:28 ` Pasha Tatashin
2018-09-10 23:43 ` [PATCH 3/4] mm: Defer ZONE_DEVICE page initialization to the point where we init pgmap Alexander Duyck
2018-09-11 7:49 ` kbuild test robot
2018-09-11 7:54 ` kbuild test robot
2018-09-11 22:35 ` Dan Williams
2018-09-12 0:51 ` Alexander Duyck
2018-09-12 0:59 ` Dan Williams
2018-09-12 13:59 ` Pasha Tatashin
2018-09-12 15:48 ` Alexander Duyck
2018-09-12 15:54 ` Pasha Tatashin
2018-09-12 16:44 ` Alexander Duyck
2018-09-12 16:50 ` Dan Williams
2018-09-12 17:46 ` Pasha Tatashin
2018-09-12 19:11 ` Dan Williams
2018-09-10 23:44 ` [PATCH 4/4] nvdimm: Trigger the device probe on a cpu local to the device Alexander Duyck
2018-09-11 0:37 ` Alexander Duyck [this message]
2018-09-12 5:48 ` Dan Williams
2018-09-12 13:44 ` Pasha Tatashin
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