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Re: How to track hard drive seeks?(more info/questions)

servis@purdue.edu writes:

> strace -p <update pid> -f   didn't trap the bdflush process.

bdflush() is a system call, not a program.  See the bdflush man page,
and /usr/src/linux/fs/buffer.c.

I thought bdflush() only wrote dirty file system buffers, so another
process (or kernel task) must be dirtying them.  Try dropping into
single-user mode ("telinit 1") and starting and stopping individualy
programs (with "/etc/init.d/foo start" and "... stop") and seeing
whether the disk is used.

	 Carey Evans  http://home.clear.net.nz/pages/c.evans/

	  GNU GPL: "The Source will be with you... always."

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