Gdb commands we will use

Transcription

1 Ex 3: Discussion 93

2 Gdb commands we will use Gdb commands we will use next Help break function Info breakpoints frame continue backtrace full Clear Delete run quit What We will Observe Lists all gdb commands & functionality Sets breakpoint at function entry Shows all declared breakpoints shows the stack Proceeds till it hits breakpoint Prints backtrace of all stack frames Clears this breakpoint You will be asked Delete all breakpoints? Runs from the beginning Quits 94

3 Ex 4: One Core For All RX0 Data plane Tasks RX1 RX2 TX0 TX1 TX2 RX3 TX3 1 Core 95

4 Many cores of medium muscle Vs few cores of mighty muscle? 96

5 Flow App_config_init App_Init App_Init_Core_Map App_pipeline_type register App_init_swq App_init_pipelines rte_mp_remote_launch App_thread 97

6 Flow App_config_init App_Init App_Init_Core_Map App_Init_Eal Rte_eal_mp_remote_launch App_init_swq App_pipeline_type register App_pipeline_type register App_pipeline_type register App_pipeline_type register App_pipeline_type register App_init_pipelines App_init_threads rte_mp_remote_launch rte_mp_remote_launch rte_mp_remote_launch rte_mp_remote_launch rte_mp_remote_launch rte_mp_remote_launch App_thread 98

7 IP-PIPELINE 99

8 100

9 Software Prefetch Or Bulk? Let us say pipeline model Work Sharing S/W Prefetch What do you feel? 101

10 DATA PLANEs 102

11 Ex 5. Discussion Points 103

12 Ex 6 Add 2 cores addiional PASS-THROUGH PASS-THROUGH 104

13 rules Fail? 105

14 Ex 7 Add 1 More Core PASS-THROUGH STAGE & CORE PASS-THROUGH STAGE & CORE 106 ADD ONE MORE STAGE & CORE

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17 export RTE_SDK=/home/intel/dpdk export RTE_TARGET=x86_64-native-linuxapp-gcc export -p 109

18 Run To Completion IP_PIPELINE Follow the scripts 110

19 Run To Completion IP-Pipeline cd examples/ip_pipeline./build/ip_pipeline f config/pcap.cfg You should get the 1 st screen shown here When you press RETURN, the prompt pipeline> will appear Type? to get help for pipeline commands shown in 2 nd screen 111

20 Save the Output files of Run To Completion Run Go to the other open ssh terminal You will see two output files, eth1.pcap & eth2.pcap Are they size 6344 and 814? YES NO Rename the two output files to say eth0_runtocompletion.pcap and eth1_runtocompletion.pcp and save them 112

21 pipeline> quit Firewall blocking all cd /home/user/dec8thhandson/dpdk-16.11/examples/ip_pipeline Chmod R 777 config/ cp p /home/user/dec8thhandson/edgerouterconfigfiles/*.* config/. cp p config/packets_upstream_65536.pcap config/packets.pcap echo $RTE_SDK [STOP if you don t see /home/user/dec8thhandson/dpdk Go Back & export again correctly] echo $RTE_TARGET [STOP if you don t see x86_64-native-linuxapp-gcc. Go Back & export again correctly] Cat /proc/meminfo Sudo modprobe uio Cd.. Cd.. Make C./examples/ip_pipeline RTE_TARGET=build 113

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23 Cd examples/ip_pipeline./build/ip_pipeline f config/edge_router_upstream_pcap.cfg Screen will have rolling messages. Even after it stops. do not touch the keyboard, mouse or screen Go to the other screen and do ls al. What do you find in the other screen? Firewall blocking all 115

24 Firewall blocking all Do you see 4 output files named eth0.pcap, eth1.pcap, eth2.pcap and eth3.pcap? 4 output files. What size you see? Note down their sizes What else you see? Do you see the edge_router_upstream_pcap.cfg.out file? compare with pcap.cfg.out file of the previous run? Now go back to the screen with pipeline> prompt press enter pipeline> Pipeline > run config/upstream_firewall_blockall.sh Now note down the size of 4 output files. Note down their sizes What size you see? Have they increased in size? If so, why? If not, why not? 116

25 Router pipeline> run config/upstream.sh Now ls al in the other screen and see the output files 117

26 Type in? To find cli commands list Pipeline>? Pipeline> quit 118

27 Compare the cfg file to cfg.out file Let us see the output of.cfg.out file and find out the difference between.cfg and.cfg.out file What do you see? You have started with cfg file. Where from.cfg.out came about? Is it purely an output file or is it also an input file? 119

28 Exercise 4: Cost Optimized Setup 1 core for control plane 1 core for data plane./build/ip_pipeline f config/edge_router_costoptimized_upstream_pcap.cfg Screen will have rolling messages. Even after it stops. do not touch the keyboard, mouse or screen Go to the other screen and do ls al. What do you find in the other screen? Do you see edge_router_costoptimized_upstream_pcap.cfg.out? What is the size difference? Now since you have not given the rules script to execute, what is the size of the output files? Can you explain? 120

29 Run the script now pipeline> run config/upstream.sh Now ls al in the other screen and see the output files Pipeline>? Pipeline> quit 121

30 Exercise 4: Abundant cores assignment This is your home work. Study the config files you used with a goal of adding exactly 4 more simple simple pipelines Update edge_router_your_exercise_to_add_morestages_pcap.cfg to instantiate additionally exactly 4 simple pipelines Build and run the updated configuration../build/ip_pipeline f config/edge_router_your_exercise_to_add_morestages_pcap.cfg What do you see? Can you explain why? 122

31 Exercise 5 Extreme compaction only 1 core for all tasks./build/ip_pipeline f config/edge_router_onlyonecore_forall_pcap.cfg Screen will have rolling messages. Why abort with core dump? 123

32 Backup 124

33 Back up 125

34 Rerefences Gdb Debugger DPDK Programmer s Guide: Testpmd Application User Guide: Sample Application User Guide: ONP 2.1 Performance Test Report ( How to get best performance with NICs on Intel platforms with DPDK: 2.2/linux_gsg/nic_perf_intel_platform.html Open vswitch documentation and installation guide: Ø Ø

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42 Run To Completion IP_PIPELINE cd /home/user/dec8thhandson/dpdk-16.11/examples/ip_pipeline chmod R 777 config/ cp p /home/user/dec8thhandson/runtocompletionconfigfiles/*.* config/. echo $RTE_SDK [STOP if you don t see /home/user/dec8thhandson/dpdk Go Back & export again correctly] echo $RTE_TARGET [STOP if you don t see x86_64-native-linuxapp-gcc. Go Back & export again correctly] cat /proc/meminfo sudo modprobe uio cd.. cd.. make C./examples/ip_pipeline RTE_TARGET=build 134

43 Run To Completion IP-Pipeline cd examples/ip_pipeline./build/ip_pipeline f config/pcap.cfg You should get the 1 st screen shown here When you press RETURN, the prompt pipeline> will appear Type? to get help for pipeline commands shown in 2 nd screen 135

44 Save the Output files of Run To Completion Run Go to the other open ssh terminal You will see two output files, eth1.pcap & eth2.pcap Are they size 6344 and 814? YES NO Rename the two output files to say eth0_runtocompletion.pcap and eth1_runtocompletion.pcp and save them 136

45 pipeline> quit Firewall blocking all cd /home/user/dec8thhandson/dpdk-16.11/examples/ip_pipeline Chmod R 777 config/ cp p /home/user/dec8thhandson/edgerouterconfigfiles/*.* config/. cp p config/packets_upstream_65536.pcap config/packets.pcap echo $RTE_SDK [STOP if you don t see /home/user/dec8thhandson/dpdk Go Back & export again correctly] echo $RTE_TARGET [STOP if you don t see x86_64-native-linuxapp-gcc. Go Back & export again correctly] Cat /proc/meminfo Sudo modprobe uio Cd.. Cd.. Make C./examples/ip_pipeline RTE_TARGET=build 137

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47 Cd examples/ip_pipeline./build/ip_pipeline f config/edge_router_upstream_pcap.cfg Screen will have rolling messages. Even after it stops. do not touch the keyboard, mouse or screen Go to the other screen and do ls al. What do you find in the other screen? Firewall blocking all 139

48 Firewall blocking all Do you see 4 output files named eth0.pcap, eth1.pcap, eth2.pcap and eth3.pcap? 4 output files. What size you see? Note down their sizes What else you see? Do you see the edge_router_upstream_pcap.cfg.out file? compare with pcap.cfg.out file of the previous run? Now go back to the screen with pipeline> prompt press enter pipeline> Pipeline > run config/upstream_firewall_blockall.sh Now note down the size of 4 output files. Note down their sizes What size you see? Have they increased in size? If so, why? If not, why not? 140

49 Router pipeline> run config/upstream.sh Now ls al in the other screen and see the output files 141

50 Type in? To find cli commands list Pipeline>? Pipeline> quit 142

51 See memory status while you were running the program 143

52 Exercise 2 Let us see the output of.cfg.out file and find out the difference between.cfg and.cfg.out file What do you see? You have started with cfg file. Where from.cfg.out came about? Is it purely an output file or is it also an input file? 144

53 Exercise 3: Cost Optimized Setup 1 core for control plane 1 core for data plane./build/ip_pipeline f config/edge_router_costoptimized_upstream_pcap.cfg Screen will have rolling messages. Even after it stops. do not touch the keyboard, mouse or screen Go to the other screen and do ls al. What do you find in the other screen? Do you see edge_router_costoptimized_upstream_pcap.cfg.out? What is the size difference? Now since you have not given the rules script to execute, what is the size of the output files? Can you explain? 145

54 Run the script now pipeline> run config/upstream.sh Now ls al in the other screen and see the output files Pipeline>? Pipeline> quit 146

55 Exercise 4: Abundant cores assignment This is your home work. Study the config files you used with a goal of adding exactly 4 more simple simple pipelines Update edge_router_your_exercise_to_add_morestages_pcap.cfg to instantiate additionally exactly 4 simple pipelines Build and run the updated configuration../build/ip_pipeline f config/edge_router_your_exercise_to_add_morestages_pcap.cfg What do you see? Can you explain why? 147

56 Exercise 5 Extreme compaction only 1 core for all tasks./build/ip_pipeline f config/edge_router_onlyonecore_forall_pcap.cfg Screen will have rolling messages. Why abort with core dump? 148

57 Backup 149

58 Back up 150

59 Rerefences Gdb Debugger DPDK Programmer s Guide: Testpmd Application User Guide: Sample Application User Guide: ONP 2.1 Performance Test Report ( How to get best performance with NICs on Intel platforms with DPDK: 2.2/linux_gsg/nic_perf_intel_platform.html Open vswitch documentation and installation guide: Ø Ø

60 Install Filezilla 152

61 See memory status while you were running the program 153

62 Touching Pkt Header 154

63 If You are in Intel Network 155

64 Screen 2 / 2 1) Proxy Type: SOCKS 5 2)Proxy host name: proxy-jf.intel.com 3) Port: ) Do DNS name lookup at proxy end: Auto This is dash not dot Next Step is To Save The Configuration 1st select this

65 1) Name The Configuration. 2) Save It Click Session on the top left corner. It will take you to the 1 st screen - shown here. In Saved Sessons Box, Enter a name, e.g., dpdk training cluster Press Save Button. From now onwards, you can load the saved session when starting PuTTY

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