From: "Roy Lee" <roylee17@gmail.com>
To: <linux-kernel@vger.kernel.org>
Cc: <roylee17@gmail.com>
Subject: Question about the io_context of I/O scheduler
Date: Sat, 23 Dec 2006 01:08:21 +0800 [thread overview]
Message-ID: <458c110a.07a24551.4274.ffff8727@mx.google.com> (raw)
Hi,
I'm currently tracing the I/O path of the kernel (2.6.19 release)
for the I/O scheduler, as far I as know, io_context is currently based on
per-process basis.
so, when an user process issued an I/O, the request generated in the kernel
will be associated to the io_context of the "current" process, right?
but, isn't there some request generated in the kernel code which is not
relevant to the I/O pattern of the "current" user process?
for example, when the request generated to handle the page fault
or the kernel is paging out other process' pages due to memory pressure.
is this an issue or did I miss something?
thanks in advance for clearifying this.
reply other threads:[~2006-12-22 17:08 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=458c110a.07a24551.4274.ffff8727@mx.google.com \
--to=roylee17@gmail.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome