https://bugs.dpdk.org/show_bug.cgi?id=674
Bug ID: 674
Summary: [dpdk-21.05]
nic_single_core_perf/test_perf_nic_single_core_avx2:
Throughput dropped about 8% when ues send 64 byte
packets on 1C2T cores config.
Product: DPDK
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: testpmd
Assignee: dev@dpdk.org
Reporter: weix.l...@intel.com
Target Milestone: ---
Description
DPDK version:
21.05.0-rc0 4113ddd45293d7b26ff4033bfd86cef03d29124f
Other software versions: N/A.
OS: Ubuntu 20.04.2 LTS/Linux 5.8.0-48-generic
Compiler: gcc version 10.2.0 (Ubuntu 10.2.0-5ubuntu1~20.04)
Hardware platform: Intel(R) Xeon(R) Platinum 8280M CPU @ 2.70GHz.
NIC hardware: Ethernet Controller E810-C for QSFP 1592.
NIC firmware: 2.30 0x80004dd0 1.2839.0
NIC driver: ice-0.8.2-k
Test Setup
Steps to reproduce
List the steps to reproduce the issue.
1.Bind NIC to DPDK
usertools/dpdk-devbind.py --force --bind=vfio-pci 0000:18:00.0
2.Compile DPDK
rm -rf x86_64-native-linuxapp-gcc
CC=gcc meson -Denable_kmods=True -Dlibdir=lib --default-library=static
x86_64-native-linuxapp-gcc
ninja -C x86_64-native-linuxapp-gcc -j 32
3.Start testpmd
x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 5,6,62 -n 6
--file-prefix=dpdk_2066596_20210413175519 --force-max-simd-bitwidth=256 -a
0000:18:00.0 -- -i --portmask=0x1 --rxq=2 --txq=2 --txd=1024 --rxd=1024
--nb-cores=2
show port info all
start
4.Use IXIA to sent IP packets
[Ether(src="52:00:00:00:00:00")/IP(src="1.2.3.4",dst="192.18.1.0")/("X"*26)]
5.Get the Throughput on 1C/2T cores, 64Byte framesize 1024 TXD/RXD config.
Show the output from the previous commands.
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
| Fwd_core | Frame Size | TXD/RXD | Throughput | Rate | Expected Throughput
| Throughput Difference |
+==========+============+=========+=============+=========+=====================+=======================+
| 1C/1T | 64 | 1024 | 77.595 Mpps | 52.144% | 76.069 Mpps
| 1.526 Mpps |
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
| 1C/1T | 128 | 1024 | 76.071 Mpps | 90.068% | 75.420 Mpps
| 0.651 Mpps |
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
| 1C/2T | 64 | 1024 | 88.346 Mpps | 59.369% | 90.638 Mpps
| -2.292 Mpps |
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
| 1C/2T | 128 | 1024 | 74.002 Mpps | 87.619% | 73.972 Mpps
| 0.030 Mpps |
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
Expected Result
Explain what is the expected result in text or as an example output:
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
| Fwd_core | Frame Size | TXD/RXD | Throughput | Rate | Expected Throughput
| Throughput Difference |
+==========+============+=========+=============+=========+=====================+=======================+
| 1C/1T | 64 | 1024 | 75.834 Mpps | 50.961% | 76.069 Mpps
| -0.235 Mpps |
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
| 1C/1T | 128 | 1024 | 74.528 Mpps | 88.241% | 75.420 Mpps
| -0.892 Mpps |
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
| 1C/2T | 64 | 1024 | 96.322 Mpps | 64.728% | 90.638 Mpps
| 5.684 Mpps |
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
| 1C/2T | 128 | 1024 | 74.178 Mpps | 87.827% | 73.972 Mpps
| 0.206 Mpps |
+----------+------------+---------+-------------+---------+---------------------+-----------------------+
Regression
Is this issue a regression: (Y/N) Y
Version the regression was introduced:
Bad commit:
commit 3d2913c67c83cca05a009ebbca3d11a5586d6117
Author: Tal Shnaiderman <tal...@nvidia.com>
Date: Tue Mar 16 15:28:18 2021 +0200
eal: add error numbers in thread TLS API
Add error number reporting to rte_errno in all
functions in the rte_thread_tls_* API.
Suggested-by: Anatoly Burakov <anatoly.bura...@intel.com>
Signed-off-by: Tal Shnaiderman <tal...@nvidia.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozl...@gmail.com>
Stack Trace or Log
CPU info:
root@dpdk-xuemin4x-cvl100g:~/dpdk# usertools/cpu_layout.py
======================================================================
Core and Socket Information (as reported by '/sys/devices/system/cpu')
======================================================================cores =
[0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 24,
25, 26, 27, 28, 29, 30]
sockets = [0, 1] Socket 0 Socket 1
-------- --------
Core 0 [0, 56] [28, 84]
Core 1 [1, 57] [29, 85]
Core 2 [2, 58] [30, 86]
Core 3 [3, 59] [31, 87]
Core 4 [4, 60] [32, 88]
Core 5 [5, 61] [33, 89]
Core 6 [6, 62] [34, 90]
Core 8 [7, 63] [35, 91]
Core 9 [8, 64] [36, 92]
Core 10 [9, 65] [37, 93]
Core 11 [10, 66] [38, 94]
Core 12 [11, 67] [39, 95]
Core 13 [12, 68] [40, 96]
Core 14 [13, 69] [41, 97]
Core 16 [14, 70] [42, 98]
Core 17 [15, 71] [43, 99]
Core 18 [16, 72] [44, 100]
Core 19 [17, 73] [45, 101]
Core 20 [18, 74] [46, 102]
Core 21 [19, 75] [47, 103]
Core 22 [20, 76] [48, 104]
Core 24 [21, 77] [49, 105]
Core 25 [22, 78] [50, 106]
Core 26 [23, 79] [51, 107]
Core 27 [24, 80] [52, 108]
Core 28 [25, 81] [53, 109]
Core 29 [26, 82] [54, 110]
Core 30 [27, 83] [55, 111]
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