I should be able to post some numbers we're seeing for compilebench on various filesystems next week, including ext4 without a journal (Frank's patch). Curt On Thu, Dec 18, 2008 at 10:13 AM, Michael Rubin <mrubin@xxxxxxxxxx> wrote: > On Thu, Dec 18, 2008 at 10:00 AM, Jan Kara <jack@xxxxxxx> wrote: >> Interesting although I'm not that surprised because those tests seem >> to do a lot of data changes (which are never journaled in fact) and tiny >> amount of metadata changes. If you run some benchmark doing lots of >> directory operations, I guess the numbers would be considerably >> different. > > Actually we have some compile bench numbers (coming to this list soon) > that also surprised us. > The stages of compile bench that I believe are dominated by directory > operations are also > showing improvements without the journal. > >> Maybe trying dbench (I know it's kind of stupid ;) or >> postmark will show the differences better. > > I admit also we see huge variance using dbench on subsequent runs. To > the point where I don't know how much I trust it's numbers. > Is this a tool that people on this list have a lot of faith in? > > mrubin > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" 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-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
