Bug 1086
Summary: | Significant TX packet drops with Mellanox NIC (mlx5 PMD) | ||
---|---|---|---|
Product: | DPDK | Reporter: | Anton Vanda (anton) |
Component: | ethdev | Assignee: | dev |
Status: | UNCONFIRMED --- | ||
Severity: | critical | CC: | asafp, dkozlyuk |
Priority: | Normal | ||
Version: | 21.11 | ||
Target Milestone: | --- | ||
Hardware: | x86 | ||
OS: | Linux | ||
Attachments: | testpmd-fec28ca0e3.log.txt |
Description
Anton Vanda
2022-09-28 15:41:31 CEST
grep Huge /proc/meminfo AnonHugePages: 1069056 kB ShmemHugePages: 0 kB HugePages_Total: 41504 HugePages_Free: 41495 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 85000192 kB # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 46 bits physical, 48 bits virtual CPU(s): 80 On-line CPU(s) list: 0-79 Thread(s) per core: 2 Core(s) per socket: 20 Socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family: 6 Model: 85 Model name: Intel(R) Xeon(R) Gold 6230 CPU @ 2.10GHz Stepping: 7 CPU MHz: 2802.162 CPU max MHz: 3900.0000 CPU min MHz: 800.0000 BogoMIPS: 4200.00 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 1024K L3 cache: 28160K NUMA node0 CPU(s): 0-19,40-59 NUMA node1 CPU(s): 20-39,60-79 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm mpx rdt_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local dtherm ida arat pln pts pku ospke avx512_vnni md_clear flush_l1d arch_capabilities It is important to notice, that switching to 1GB hugepages fixed this and improved PPS. Instead of 17 Mpps per port I get 22 Mpps (the same experiment; tested on dpdk commit fec28ca0e3). |