Re: [PATCH] mm readahead: Fix sys_readahead breakage by reverting 2MB limit (bug 79111)

[Dave Jones]

On Thu, Jul 03, 2014 at 11:53:57AM -0700, Linus Torvalds wrote:
 > On Thu, Jul 3, 2014 at 11:38 AM, Raghavendra K T
 > <raghavendra.kt@xxxxxxxxxxxxxxxxxx> wrote:
 > >
 > > Okay, how about something like 256MB? I would be happy to send a patch
 > > for that change.
 > 
 > I'd like to see some performance numbers. I know at least Fedora uses
 > "readahead()" in the startup scripts, do we have any performance
 > numbers for that?

this got rolled up into systemd a while ago, so it's not just Fedora.

re: numbers, systemd-analyze and systemd-bootchart look like the way
to figure that out..
https://wiki.archlinux.org/index.php/Improve_boot_performance

	Dave

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