I really miss the mailing lists, I wish they had a way of gating them with the lousy web forums. <div class="gmail_quote">On Feb 17, 2016 8:57 AM, "Troels Arvin" <<a href="mailto:troels@arvin.dk">troels@arvin.dk</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I've just had a situation with an RHEL 7 server where transparent hugepages (THP) might have contributed to a problem. And there are many projects/products which recommend turning THP off, eg: <a href="https://docs.oracle.com/database/121/UNXAR/appi_vlm.htm" rel="noreferrer" target="_blank">https://docs.oracle.com/database/121/UNXAR/appi_vlm.htm</a> <a href="http://www.cloudera.com/documentation/enterprise/latest/topics/ cdh_admin_performance.html" rel="noreferrer" target="_blank">http://www.cloudera.com/documentation/enterprise/latest/topics/ cdh_admin_performance.html</a> <a href="https://docs.mongodb.org/manual/tutorial/transparent-huge-pages/" rel="noreferrer" target="_blank">https://docs.mongodb.org/manual/tutorial/transparent-huge-pages/</a> <a href="http://www.chriscalender.com/disabling-transparent-hugepages-for-tokudb/" rel="noreferrer" target="_blank">http://www.chriscalender.com/disabling-transparent-hugepages-for-tokudb/</a> <a href="http://www-01.ibm.com/support/docview.wss?uid=swg21677458" rel="noreferrer" target="_blank">http://www-01.ibm.com/support/docview.wss?uid=swg21677458</a> I have also seen reports about THP ruining the performance on workstations. So which workloads actually benefit significantly from THP? Does someone know if Red Hat has considered turning them off by default? (There doesn't seem to be a mailing list for RHEL 7, so I'm using this mailing list instead. Which should be OK, as I believe there isn't much difference WRT THP between RHEL 6 and 7.) -- Troels Arvin _______________________________________________ rhelv6-list mailing list <a href="mailto:rhelv6-list@redhat.com">rhelv6-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/rhelv6-list" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/rhelv6-list</a> </blockquote></div>