On Thu, Feb 5, 2015 at 6:00 AM, Damjan Marion (damarion) <damarion at cisco.com > wrote:
> Hi, > > I have system with 2 NUMA nodes and 256G RAM total. I noticed that DPDK > crashes in rte_eal_init() > when number of available hugepages is around 40000 or above. > Everything works fine with lower values (i.e. 30000). > > I also tried with allocating 40000 on node0 and 0 on node1, same crash > happens. > > > Any idea what might be causing this? > Any reason you can't switch to using 1GB hugepages? You'll get better performance and your init time will be shorter. The systems we run on are similar (256GB, 2 NUMA nodes) and that works fine for us. Not directly related, but if you have to stick with 2MB hugepages, you might want to take a look at a patch I submitted that fixes the O(n^2) algorithm used in initializing hugepages. Jay
