Hello, I am not today a kernel hacker ;-) and I would like to understand something : Does it mean that when Lustre client is mounted, I am obliged to make any IOs to force bitmaps cache or am I obliged to wait a certain time before making any writes ? If Yes, can I monitor under /proc this info ?
Thanks Cédric Oleg Drokin a écrit : > > I believe what you are seeing is a direct result of bitmap blocks > being not > read at mount time. So it takes some time to cache bitmaps (And other > data structures) into memory > (and it happens during writes which hinders performance). > Once bitmaps are all read, performance stabilizes. > > Hopefully Alex or Andreas might comment further on this, or perhaps > remember > a bug number, Cray filed one some time ago, I think. > > Bye, > Oleg > _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
