> >> > Ah now the write protection is a "needed feature", in your previous > >> > comment you talked about why not use ext2/3....... > >> > > >> > Marco > >> > > >> > >> Just for your information I tried the same test with pc in a virtual machine with 32MB of RAM: > >> > >> Version 1.03e ------Sequential Output------ --Sequential Input- --Random- > >> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- > >> Machine Size:chnk K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP > >> hostname 15M:1k 14156 99 128779 100 92240 100 11669 100 166242 99 80058 82 > >> ------Sequential Create------ --------Random Create-------- > >> -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- > >> files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP > >> 4 2842 99 133506 104 45088 101 2787 99 79581 101 58212 102 > >> > >> These data are the proof of the importance of the environment, workload and so on when we talk > >> about benchmark. Your consideration are really superficial. > > > > Unfortunately, your numbers are meaningless. > > I don't think so. > > > (PCs should have cca 3GB/sec RAM transfer rates; and you demosstrated > > cca 166MB/sec read rate; disk is 80MB/sec, so that's too slow. If you > > want to prove your filesystem the filesystem is reasonably fast, > > compare it with ext2 on ramdisk.) > > > This is the point. I don't want compare it with ext2 from performance > point of view. This comparison makes no sense for me. I've done this > test to prove that if you change environment you can change in a > purposeful way the results. Yes, IOW you demonstrated that the numbers are machine-dependend and really meaningless. ext2 comparison would tell you how much pramfs sucks (or not). Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
