Date: Mon, 5 May 2003 15:04:57 +0400 From: "Artem Tepponen" <temik@egartech.com> To: "Terry Lambert" <tlambert2@mindspring.com> Cc: freebsd-performance@freebsd.org Subject: RE: freebsd-performance Digest, Vol 3, Issue 1 Message-ID: <5235EF9BAE6B7F4CB3735789EEF73B29B06A69@turtle.egar.egartech.com>
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> Too bad it's not supported, and too bad that, if it was, the > overhead would be too high because there's not VOP to get the > FS block offsets, so you would have to go trouh the FS code to > swap, and it would be much, much slower. Btw, do you have any fresh numbers on hand that can support this = statement? Naive approach whould be comparing CPU time taken and disk latencies that differ by an order of magnitude and conclude that few microseconds eaten by CPU would go unnoticed compared with milliseconds taken by = disk. Artem
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