From: Amit Choudhary <amit2030@yahoo.com>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH] [DISCUSS] Optimizing linux applications with the help of the kernel.
Date: Sun, 10 Dec 2006 02:06:49 -0800 (PST) [thread overview]
Message-ID: <464448.56474.qm@web55602.mail.re4.yahoo.com> (raw)
Hi All,
I just had an idea for improving the performance of linux applications with some help from the
kernel. Let's say that I have to make a copy of a file. So, I read the input file into a buffer
and then write the buffer to the output file.
In both these cases the same data is coming from kernel_to_user and then from user_to_kernel. If
this can be short-circuited, that is, from kernel_to_kernel then the performance can be increased
a lot.
The psuedocode would be:
fd_inp = open _output_file
fd_out = open _input_file
instruct_kernel to write next data read from fd_inp to fd_out
read fd_out
The same mechanism can be applied to many other scenarios.
May be whatever I am thinking is wrong or involves lot of complexities but this is just a thought.
Regards,
Amit
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next reply other threads:[~2006-12-10 10:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-10 10:06 Amit Choudhary [this message]
2006-12-10 10:20 ` bert hubert
2006-12-10 11:10 ` Benoit Boissinot
2006-12-10 11:14 ` Jesper Juhl
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