On Mon, Jun 07, 2010 at 01:40:21PM -0400, Martin K. Petersen wrote: > >>>>> "Boaz" == Boaz Harrosh <bharrosh@xxxxxxxxxxx> writes: > > Boaz> Do you remember some performance numbers that show degradation / > Boaz> sameness? > > Boaz> What type of work loads? > > I haven't been using XFS much for over a year. I'm using an internal > async I/O tool and btrfs for most of my DIX/DIF testing these days. > > But my original changes were along the lines of what Jan mentioned > earlier (hooking into page_mkwrite and waiting for writeback. I could > have sworn that I only did it for ext[23] and that XFS waited out of the > box but git proves me wrong). Anyway, I'll try to get some benchmarking > happening later this week. Is there a patch with this change available somewhere? It might be useful to patch a kernel with this XFS change for reliable DIF/DIX testing. > This won't fix things completely, though. ext2fs, for instance, > frequently changes metadata buffers in flight so it trips the guard > check in no time. > > -- > Martin K. Petersen Oracle Linux Engineering > -- > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
