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Diffstat (limited to 'doc/trex_book.asciidoc')
| -rwxr-xr-x | doc/trex_book.asciidoc | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/doc/trex_book.asciidoc b/doc/trex_book.asciidoc index 41151eb7..fc69bdf4 100755 --- a/doc/trex_book.asciidoc +++ b/doc/trex_book.asciidoc @@ -2070,6 +2070,10 @@ The disadvantage is the OFED dependency. The following distro were tested with TRex and OFED, others might work * Ubuntu 14.04.3 LTS (GNU/Linux 3.19.0-25-generic x86_64) + + +The following distro were tested and did *not* work for us + * Fedora 21 (3.17.4-301.fc21.x86_64) ==== Install OFED @@ -2399,14 +2403,40 @@ NIC with two ports will work better from performance prospective, so it is bette * link:https://trex-tgn.cisco.com/youtrack/issue/trex-260[64B performance issue] * link:https://trex-tgn.cisco.com/youtrack/issue/trex-261[Latency issue] * link:https://trex-tgn.cisco.com/youtrack/issue/trex-262[Statful RX out of order] +* link:https://trex-tgn.cisco.com/youtrack/issue/trex-273[Fedora 21 & OFED 3.4.1] + + +==== Performance Cycles/Packet ConnectX-4 vs Intel XL710 + +For version TRex v2.11, this is the comparison results between XL710 and ConnectX-4 for various scenarios + +.Stateless MPPS/Core [Perlimeniary] +image:images/xl710_vs_mlx5_64b.png[title="Stateless 64B"] + +.Stateless Gb/Core [Perlimeniary] +image:images/xl710_vs_mlx5_var_size.png[title="Stateless variable size packet"] + +*Comments*:: + +1. For Stateless 64B profiles ConnectX-4 cost 50-90% more cycles per packet (it is actually even more because there is the TRex scheduler overhead) - it means that in the worst case scenario you will need x2 CPU for the same total MPPS +2. For Stateless/Stateful 256B profiles, ConnectX-4 cost half of the cycles per packets. ConnectX-4 probably can handle in a better way chained mbuf (scatter gather). +3. In Average Stateful senario ConnectX-4 will be slightly better. +4. MLX5 can reach ~90MPPS while XL710 limited to 35MPPS + + +[NOTE] +===================================== +There is a task to automate the production of this reports +===================================== === Cisco VIC support anchor:ciscovic_support[] +* Supported from TRex version v2.11 * Only 1300 series Cisco adapter -* Firmware version 2.0(13) for UCS C-series servers +* Firmware version 2.0(13) for UCS C-series servers, GA in Febuary 2017. * Firmware version 3.1(2) for blade servers supports more filtering capabilities. * The feature can be enabled via Cisco CIMC or USCM with the 'advanced filters' radio button. When enabled, the these additional flow director modes are available: RTE_ETH_FLOW_NONFRAG_IPV4_OTHER @@ -2420,5 +2450,8 @@ anchor:ciscovic_support[] ==== Limitation/Issues * Stateless per stream statistic is not supported yet -* link:https://trex-tgn.cisco.com/youtrack/issue/trex-265[flow-director] +* link:https://trex-tgn.cisco.com/youtrack/issue/trex-265[flow-director] +* link:https://trex-tgn.cisco.com/youtrack/issue/trex-272[QSFP+ issue] + + |