From: Wei Wang <wvw@google.com>
To: Huang Ying <ying.huang@intel.com>
Cc: gregkh@linuxfoundation.org, "Todd Poynor" <toddpoynor@google.com>,
"Wei Wang" <wei.vince.wang@gmail.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Dan Williams" <dan.j.williams@intel.com>,
"Michal Hocko" <mhocko@suse.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
"Jan Kara" <jack@suse.cz>, "Jérôme Glisse" <jglisse@redhat.com>,
"Hugh Dickins" <hughd@google.com>,
"Matthew Wilcox" <willy@infradead.org>,
"Ingo Molnar" <mingo@kernel.org>,
"Sherry Cheung" <SCheung@nvidia.com>,
"Oliver O'Halloran" <oohall@gmail.com>,
"Andrey Ryabinin" <aryabinin@virtuozzo.com>,
"Dennis Zhou" <dennisz@fb.com>,
"Pavel Tatashin" <pasha.tatashin@oracle.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: add config for readahead window
Date: Mon, 19 Mar 2018 03:15:11 +0000 [thread overview]
Message-ID: <CAGXk5yrKw4edZs1pvrL5t67C1YASiOcZPsF3VDHmJ+nNQBVSqw@mail.gmail.com> (raw)
In-Reply-To: <87zi34zt85.fsf@yhuang-dev.intel.com>
On Sun, Mar 18, 2018 at 7:37 PM Huang, Ying <ying.huang@intel.com> wrote:
> Wei Wang <wvw@google.com> writes:
> > Android devices boot time benefits by bigger readahead window setting
from
> > init. This patch will make readahead window a config so early boot can
> > benefit by it as well.
> Can you change the source code of init to call ioctl(BLKRASET) early?
> Best Regards,
> Huang, Ying
Yes, I am sure we can work this out by not touching it in mainline kernel.
One reason to bring it up again is that we found some SoC vendor has always
set a different value than default (128) in their kernel tree.
Thanks,
Wei Wang
next prev parent reply other threads:[~2018-03-19 3:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-16 18:25 [PATCH] mm: add config for readahead window Wei Wang
2018-03-16 18:49 ` Wei Wang
2018-03-16 20:53 ` Greg KH
2018-03-19 2:36 ` Huang, Ying
2018-03-19 3:15 ` Wei Wang [this message]
2018-03-20 20:17 ` Jan Kara
2018-03-16 20:56 ` Kirill A. Shutemov
2018-03-16 21:26 ` Linus Torvalds
2018-03-16 21:33 ` Andrew Morton
2018-03-16 21:51 ` Wei Wang
2018-03-16 21:59 ` Andrew Morton
2018-03-16 22:13 ` Wei Wang
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