> > I am unsure if we should put this into CVS as it brings us correctness > > for the price of some performance penalty. > Can you very roughly estimate the performance hit - let's say the slow > down when copying the whole kernel-tree once? > -- Guido Hi all, I've done some bonnie++ tests and everything looks good IMHO. See attachments (new_speed is with lolo's patch and old_speed without). I vote for commit. Cool work ! Cya, Klaus -- Full Name : Klaus Naumann | (http://www.mgnet.de/) (Germany) Nickname : Spock | Org.: Mad Guys Network Phone / FAX : ++49/177/7862964 | E-Mail: (spock@mgnet.de) PGP Key : www.mgnet.de/keys/key_spock.txt
Version 1.02 ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP ivy 368M 1415 95 2437 7 1003 4 1208 81 2298 6 90.7 2 ------Sequential Create------ --------Random Create-------- -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 235 99 +++++ +++ 13871 98 242 99 +++++ +++ 898 99 ivy,368M,1415,95,2437,7,1003,4,1208,81,2298,6,90.7,2,16,235,99,+++++,+++,13871,98,242,99,+++++,+++,898,99
Version 1.02 ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP ivy 368M 1348 91 2468 7 836 3 1297 87 2178 5 91.0 2 ------Sequential Create------ --------Random Create-------- -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 220 99 +++++ +++ 13440 98 232 99 +++++ +++ 780 99 ivy,368M,1348,91,2468,7,836,3,1297,87,2178,5,91.0,2,16,220,99,+++++,+++,13440,98,232,99,+++++,+++,780,99