On 09/21/2013 05:12 PM, Andreas Dilger wrote: > I just noticed that we have a patch for Lustre that adds a "no_mbcache" mount option to disable mbcache on a per-filesystem basis. > > The newest patch we have is based on FC19 (3.10 kernel), is this something that would be of interest if we submitted it upstream? > > http://review.whamcloud.com/#/c/7263/8/ldiskfs/kernel_patches/patches/fc19/ext4-disable-mb-cache.patch > > Cheers, Andreas > Here are some of the improvement I saw with SELinux disabled. On an 80 core machine, custom 15.5% disk 27.81 fserver 5.33% new_dbase 9.06% new_fserver 5.45% On an 8 core machine, alltests 5.24 custom 2.26 shared 9.32 short 24.08 The rest is not noticably different. Thanks, Mak. -- 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
