Hello, I have a simple application (C++) that essentially copies input to output. Using X310, direct connect 10 GbE, DPDK. Each thread is tied to an isolated core, none of the cores (other than DPDK) uses more than 75%.
UHD: GNU C++ version 9.4.0; Boost_107100; DPDK_19.11; UHD_4.4.0.0-0-g5fac246b Kernel command line: iommu=pt intel_iommu=on hugepages=1024 isolcpus=1-7 nohz_full=1-7 rcu_nocbs=1-7 irqaffinity=0 intel_idle.max_cstate=0 ipv6.disable=0 fips=1 . I have turned off all the services I can think of, including irqbalance. I am seeing an underflow event every ~33.4s. Very repeatable across runs. Anyone have any idea what could be causing this? Eugene. ________________________ Eugene Grayver, Ph.D. Aerospace Corp., Principal Engineer Tel: 310.336.1274 ________________________
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