Date: Thu, 6 Jan 2000 10:24:45 -0800 (PST) From: "Jeffrey C. Becker" <becker@miles.nas.nasa.gov> To: linux-kernel@vger.rutgers.edu Subject: KNBD server available Hi. I ported Pavel Machek's userland nbd server to run as a kernel module, and Pavel was kind enough to make it available at his nbd website (http://atrey.karlin.mff.cuni.cz/~pavel/nbd/nbd.html). Please try it out! FYI, I ran bonnie to compare knbd to nbd (2 i386's running 2.3.18 kernel connected by fast ethernet, backing device is /dev/loop0 backed by a large file). Note knbd is slightly faster on block reads and about 50% faster on block writes. Jeff Becker MRJ Technology Solutions Numerical Aerospace Simulation Facility NASA Ames Research Center ---------------------------------------------------------------------- Bonnie Results nbd: -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 100 2089 25.4 2561 4.9 720 4.5 1018 13.7 1044 5.9 82.4 3.6 knbd: -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 100 3844 45.6 3888 7.4 577 4.1 781 11.0 1054 6.1 81.1 4.1 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/