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1 | <html> |
| 2 | <body> |
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3 | <center><big><big>LTTV & LTTng roadmap<small><small></center> |
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4 | <br> |
| 5 | <br> |
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6 | Here are the roadmaps for the LTTV and LTTng development. I use a priority indice |
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7 | for the TODO items :<br> |
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8 | (1) : very high priority<br> |
| 9 | (10): lowest priority<br> |
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10 | <br> |
| 11 | <br> |
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12 | Dependencies are written between brackets [ ].<br> |
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13 | The # symbol marks who is currently working on the item.<br> |
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14 | The % symbol marks who is interested in the realisation of the item.<br> |
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15 | <br> |
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16 | <big>LTTV Roadmap<small><br> |
| 17 | <br> |
| 18 | * TODO<br> |
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19 | (2) state.c : add Softirq execution mode.<br> |
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20 | (3) Make LTTV aware of type formats defined in the XML file.<br> |
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21 | (3) Use a per architecture enumeration for traps.<br> |
| 22 | (3) Integrate Kernel State Dump information.<br> |
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23 | (4) create a event rate graphical view : Will be useful in conjunction with the |
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24 | filter.<br> |
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25 | # <A HREF="mailto:Parisa Heidari <parisa.heidari@polymtl.ca>">Parisa Heidari</A><br> |
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26 | (4) create a graphical per cpu activity view.<br> |
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27 | (5) Flight recorder : start lttd automatically upon GUI trace control stop.<br> |
| 28 | (5) Event sequence detector (inspired from regular expressions).<br> |
| 29 | (7) create an analysis of function time (like a precise gprof).<br> |
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30 | -> with gcc -f inline-functions<br> |
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31 | (7) Create a hardware counter viewer (low cost rate counters : L1 cache miss, page faults, interrupts...).<br> |
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32 | (10) Add cancel button to LTTV filter GUI window. |
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33 | <br> |
| 34 | <br> |
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35 | <big>LTT Next Generation Roadmap<small><br> |
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36 | <br> |
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37 | * TODO<br> |
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38 | (2) add efficient and secure user space tracing. (1 month)<br> |
| 39 | (3) integrate LTTng State Dump : missing irq and process state.<br> |
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40 | # <A HREF="mailto:Jean-Hugues Deschenes <jean-hugues.deschenes@polymtl.ca>">Jean-Hugues Deschenes</A><br> |
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41 | (4) efficient dynamic event filtering while recording trace.<br> |
| 42 | % Sensis Corp. <A HREF="mailto:Bish, Tim <Tim.Bish@Sensis.com>">Tim Bish</A><br> |
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43 | (4) Create the heartbeat timer LTTng module. Make sure that heartbeat events |
| 44 | never hit the facility channel. Use the complete 64 bits TSC for the facility |
| 45 | channel in every case. That's because this channel must never be overwritten |
| 46 | even in "flight recorder" mode.<br> |
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47 | (5) Integrate LTTng and lttd with LKCD.<br> |
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48 | (7) add gcc -finstrument-functions instrumentation<br> |
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49 | (7) Integrate periodical dump of perfctr hardware counters.<br> |
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50 | (8) Integrate periodical dump of SystemTAP computed information.<br> |
| 51 | (8) Integrate SystemTAP logging with LTTng.<br> |
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52 | (3) port LTTng to :<br> |
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53 | x86_64<BR> |
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54 | #Autodesk <A HREF="mailto:Francois L'Archeveque <fla@discreet.com>">Francois |
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55 | L'Archeveque</A> for 2.6.9 RedHat Enterprise (patch available in contrib, still |
| 56 | has to be ported to 2.6.14, thanks!)<BR> |
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57 | %Wind River for 2.6.14<BR> |
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58 | PPC<BR> |
| 59 | PPC64<BR> |
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60 | %Wind River for 2.6.14<BR> |
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61 | alpha<BR> |
| 62 | user-mode Linux<BR> |
| 63 | Xen<BR> |
| 64 | MIPS<BR> |
| 65 | MIPS64<BR> |
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66 | %Wind River for 2.6.14<BR> |
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67 | ARM<BR> |
| 68 | S/390<BR> |
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69 | <br> |
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70 | <br> |
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71 | <br> |
| 72 | * TODO (low priority)<br> |
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73 | enhance RPM packages for lttng kernel<br> |
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74 | Integrate header generation (genevent) in kernel build system.<br> |
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75 | Multithreaded lttd.<br> |
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76 | Find a different way to printk from instrumentation : forbidden from schedule |
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77 | and wakeup (causes a deadlock). -> Modify printk so it uses LTTng tracer!<br> |
| 78 | Export channels via network sockets instead of writing them to disk.<br> |
| 79 | Export buffers with time constraint for "live" visualisation. Use |
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80 | ltt_force_switch periodically from a timer to insure slow channels do not |
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81 | interfere with viewing.<br> |
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82 | <br> |
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83 | * Need to be discussed<br> |
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84 | Use 2.6.14 RelayFS control files.<br> |
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85 | Drop ltt-module-register and ltt-module-unregister, use exported variables.<br> |
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86 | drop ltt_filter_control, use functions pointers instead.<br> |
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87 | Merge facilities headers into one big header.<br> |
| 88 | Change the name of XML files from XML to something else.<br> |
| 89 | Remove ltt-base.c.<br> |
| 90 | <br> |
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91 | <br> |
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92 | * lttng patch division (0.4.2+) :<br> |
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93 | <br> |
| 94 | ltt-instrumentation.diff<br> |
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95 | ltt-facilities-headers.diff<br> |
| 96 | ltt-facilities-loader.diff<br> |
| 97 | ltt-facilities.diff<br> |
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98 | ltt-relayfs.diff<br> |
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99 | ltt-core.diff<br> |
| 100 | <br> |
| 101 | <br> |
| 102 | Mathieu Desnoyers<br> |
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103 | |
| 104 | |
| 105 | </body> |
| 106 | </html> |
projects / lttv.git / blame