<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Feb 12, 2019 at 11:09 PM Darrell Budic <<a href="mailto:budic@onholyground.com">budic@onholyground.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">Is there an example of a custom profile you can share for my ovirt use case (with gfapi enabled)? </div></blockquote><div><br></div><div>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.</div><div> <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;">Or are you just talking about the standard group settings for virt as a custom profile?<br><div><br><blockquote type="cite"><div>On Feb 12, 2019, at 7:22 AM, Raghavendra Gowdappa <<a href="mailto:rgowdapp@redhat.com" target="_blank">rgowdapp@redhat.com</a>> wrote:</div><br class="gmail-m_4556511406212266759Apple-interchange-newline"><div><div dir="ltr"><div dir="ltr"><a href="https://review.gluster.org/22203" target="_blank">https://review.gluster.org/22203</a><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Feb 12, 2019 at 5:38 PM Raghavendra Gowdappa <<a href="mailto:rgowdapp@redhat.com" target="_blank">rgowdapp@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div>All,</div><div><br></div><div>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.</div><div><br></div><div>For non-native fuse mounts like gfapi (NFS-ganesha/samba) we can have these xlators on by having custom profiles. Comments?<br></div><div><br></div><div>[1] <a href="https://bugzilla.redhat.com/show_bug.cgi?id=1665029" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=1665029</a></div><div><br></div><div>regards,</div><div>Raghavendra<br></div></div></div>
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