> On Apr 12, 2016, at 6:46 PM, Mark Hahn <h...@mcmaster.ca> wrote: > > all our existing Lustre MDSes run happily with vm.zone_reclaim_mode=0, > and making this one consistent appears to have resolved a problem > (in which one family of lustre kernel threads would appear to spin, > "perf top" showing nearly all time spent in spinlock_irq. iirc.) > > might your system have had a *lot* of memory? ours tend to be fairly modest > (32-64G, dual-socket intel.)
I have 64 GB on my servers. -- Rick Mohr Senior HPC System Administrator National Institute for Computational Sciences http://www.nics.tennessee.edu _______________________________________________ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
