> >> >even consumed 9% of a CPU, so where on earth has the kernel gone to? > >> > > >> >Have you been able to reproduce this in your testing? > >> > >> Yes, this test on my environment is reproducible. > > > >Hisashi, does your environment have some special configurations? > > Hi. > My testing environment is as follows: > Hardware: HP DL580 > CPU:Xeon 3.2GHz *4 HT enabled > Memory:8GB > Storage: Dothill SANNet2 FC (7Disks RAID-0 Array) > > I did dd to this disk-array and got improved performance number. > > I noticed that when a disk is just one HDD, performance improvement > is very small. thas's odd. Why your patch depend on transfer rate difference? -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
