On 2005-03-25 10:08, Jonathan Stewart <[EMAIL PROTECTED]> wrote: > --- Giorgos Keramidas keramida at ceid dot upatras dot gr wrote: > > So, what you are looking for is a single byte count that increases > > sequentially for all read() and write() system calls? > > Pretty much, yes. To be specific all read() and write() calls for a > given process. Even something that counted in 512 byte or UFUFSlocks > would be useful.
To what end, may I ask? Per process statistics may include byte counts from a few thousand threads that read and/or write from a few hundred descriptors. Even per file descriptor statistics quickly get useless when one considers that a single byte read may cause the read-ahead of a few thousand bytes or that a single write may reach the corresponding device several seconds later. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
