From: Yoann Padioleau <pad@fb.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: [9fans] advanced core Linux kernel features not in plan9
Date: Sat, 7 Jun 2014 04:36:59 +0000 [thread overview]
Message-ID: <6DB43D16-3A34-47FF-9E99-50BF09B2AA63@fb.com> (raw)
Hi,
I was curious to know which core features of the Linux kernel are not implemented
in the plan9 kernel. By core I mean that I know plan9 does not have all the drivers,
filesystems, buses, etc Linux has, but it has many of its core
features (virtual memory, paging, swapping, demand loading, copy on write, etc),
and even more.
For instance I was not able to find any code related to the buffer cache Linux has.
If you open a big file in a plan9 process, then close it, and later you open it again,
will you pay the IO again? Or is it cached somewhere?
next reply other threads:[~2014-06-07 4:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-07 4:36 Yoann Padioleau [this message]
2014-06-07 4:43 ` erik quanstrom
2014-06-07 4:52 ` cinap_lenrek
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