On Tue, Feb 12, 2019 at 11:09 PM Darrell Budic <budic@xxxxxxxxxxxxxxxx> wrote:
Is there an example of a custom profile you can share for my ovirt use case (with gfapi enabled)?
I was speaking about a group setting like "group metadata-cache". Its just that custom options one would turn on for a class of applications or problems.
Or are you just talking about the standard group settings for virt as a custom profile?On Feb 12, 2019, at 7:22 AM, Raghavendra Gowdappa <rgowdapp@xxxxxxxxxx> wrote:_______________________________________________On Tue, Feb 12, 2019 at 5:38 PM Raghavendra Gowdappa <rgowdapp@xxxxxxxxxx> wrote:All,We've found perf xlators io-cache and read-ahead not adding any performance improvement. At best read-ahead is redundant due to kernel read-ahead and at worst io-cache is degrading the performance for workloads that doesn't involve re-read. Given that VFS already have both these functionalities, I am proposing to have these two translators turned off by default for native fuse mounts.For non-native fuse mounts like gfapi (NFS-ganesha/samba) we can have these xlators on by having custom profiles. Comments?regards,Raghavendra
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