On Tue, Sep 01, 2009 at 02:00:52PM -0400, Chris Mason wrote: > > I haven't yet tried this without the max_writeback_pages patch, but the > graphs clearly show a speed improvement, and that the mainline code is > smearing writes across the drive while Jens' work is writing > sequentially. FYI, you don't need to revert the max_writebacks_pages patch; the whole point of making it a tunable was to make it easier to run benchmarks. If you want to get the effects of the original setting of MAX_WRITEBACK_PAGES before the patch, just run as root: sysctl vm.max_writeback_pages=1024 - Ted -- 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