Hi, At 2017-12-18 22:45:30, "Paolo Abeni" <pab...@redhat.com> wrote: >Understood, thanks. Still the time spent in 'udp4_lib_lookup2' looks >quite different/higher than what I observe in my tests. Are you using >x86_64? if not, do you see many cache misses in udp4_lib_lookup2?
Yes, x86_64. Here is the host's lscpu output info: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 12 On-line CPU(s) list: 0-11 Thread(s) per core: 1 Core(s) per socket: 6 CPU socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family: 6 Model: 62 Stepping: 4 CPU MHz: 2095.074 BogoMIPS: 4196.28 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 15360K NUMA node0 CPU(s): 0-5 NUMA node1 CPU(s): 6-11 Btw, my guest OS is Centos 3.10.0-514.26.2.el7.x86_64, is this kernel too old to be tested?
