>-----Original Message----- >From: Андрей Василишин [mailto:[email protected]] >Sent: Saturday, June 07, 2014 10:32 AM >To: [email protected] >Subject: [E1000-devel] 82599EB big packet loss > >Hello! >I have NIC: ># lspci -nn -v -s 07:00.1 >07:00.1 Ethernet controller [0200]: Intel Corporation >82599EB 10-Gigabit >SFI/SFP+ Network Connection [8086:10fb] (rev 01) > Subsystem: Intel Corporation Ethernet Server >Adapter X520-2 >[8086:7a11] > Flags: bus master, fast devsel, latency 0, IRQ 25 > Memory at fb380000 (64-bit, non-prefetchable) >[size=512K] > I/O ports at cc00 [size=32] > Memory at fb2fc000 (64-bit, non-prefetchable) >[size=16K] > Expansion ROM at fb300000 [disabled] [size=512K] > Capabilities: [40] Power Management version 3 > Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ >64bit+ > Capabilities: [70] MSI-X: Enable+ Count=64 Masked- > Capabilities: [a0] Express Endpoint, MSI 00 > Capabilities: [e0] Vital Product Data > Capabilities: [100] Advanced Error Reporting > Capabilities: [140] Device Serial Number 90-e2-ba- >ff-ff-20-1b-7c > Capabilities: [150] Alternative Routing-ID >Interpretation (ARI) > Capabilities: [160] Single Root I/O Virtualization >(SR-IOV) > Kernel driver in use: ixgbe > >with one of this modules (don't remember which one): Intel SFP+ SR >FTLX8571D3BCV-IT or Intel SFP+ SR AFBR-703SDZ-IN2
If the issue is only seen with specific module, then it would help to know the exact model. >When OUTbount traffic up to ~9800 Mbit/s INbound traffic appear packet loss up >to 30% From the stats, some of the counters that maybe related to the packet loss: > rx_no_dma_resources: 68 Because this counter increments, but xoff counters are 0, I'm guessing you don't have flow control enabled. This basically means that the driver has no free Rx descriptors in the receive queue. > fdir_overflow: 1424 You have many sessions which exceed the space allocated for Fdir filters. You can try and increase it using the FdirPballoc parameter. Thanks, Emil ------------------------------------------------------------------------------ HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing & Easy Data Exploration http://p.sf.net/sfu/hpccsystems _______________________________________________ E1000-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
