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Message-ID: <464448.56474.qm@web55602.mail.re4.yahoo.com> Date: Sun, 10 Dec 2006 02:06:49 -0800 (PST) From: Amit Choudhary <amit2030@...oo.com> To: Linux Kernel <linux-kernel@...r.kernel.org> Subject: [PATCH] [DISCUSS] Optimizing linux applications with the help of the kernel. 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 ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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