Le 30 janvier 2012 05:09, Eric Whitney <eric.whitney@xxxxxx> a écrit : > I've posted the results of some 3.2 and 3.1 ext4 scalability measurements > and comparisons on a 48 core x86-64 server at: > > http://free.linux.hp.com/~enw/ext4/3.2 > > This includes throughput and CPU efficiency graphs for five simple > workloads, the raw data for same, plus lockstats on ext4 filesystems with > and without journals. The data have been useful in improving ext4 > scalability as a function of core and thread count in the past. > > For reference, ext3, xfs, and btrfs data are also included. interesting to have all of them, yes. > > The most notable improvement in 3.2 is a big scalability gain for journaled > ext4 when running the large_file_creates workload. This bisects cleanly to > Wu Fengguang's IO-less balance_dirty_pages() patch which was included in the > 3.2 merge window. > > (Please note that the test system's hardware and firmware configuration has > changed since my last posting, so this data set cannot be directly compared > with my older sets.) > > Thanks, > Eric > > -- > 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 -- Cédric Villemain +33 (0)6 20 30 22 52 http://2ndQuadrant.fr/ PostgreSQL: Support 24x7 - Développement, Expertise et Formation -- 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
