| 1 | <html> |
| 2 | <body> |
| 3 | <center><big><big>LTTV & LTTng roadmap<small><small></center> |
| 4 | <br> |
| 5 | <br> |
| 6 | Here are the roadmaps for the LTTV and LTTng development. I use a priority indice |
| 7 | for the TODO items :<br> |
| 8 | (1) : very high priority<br> |
| 9 | (10): lowest priority<br> |
| 10 | <br> |
| 11 | <br> |
| 12 | Dependencies are written between brackets [ ].<br> |
| 13 | The # symbol marks who is currently working on the item.<br> |
| 14 | The % symbol marks who is interested in the realisation of the item.<br> |
| 15 | <br> |
| 16 | <big>LTTV Roadmap<small><br> |
| 17 | <br> |
| 18 | * TODO<br> |
| 19 | (3) Add cluster support.<br> |
| 20 | # <A HREF="mailto:Eric Clement <eric.clement@polymtl.ca>">Eric Clement</A><br> |
| 21 | (3) Make LTTV aware of type formats (visual separators) defined in the XML |
| 22 | file.<br> |
| 23 | (3) Use a per architecture enumeration for traps.<br> |
| 24 | (4) Add event specific fields support to filter.<br> |
| 25 | (4) Add a periodic event interval view. (useful to verify event periodicity)<br> |
| 26 | (4) create a graphical per cpu activity view.<br> |
| 27 | (5) Add Python scripting hooks.<br> |
| 28 | (5) Flight recorder : start lttd automatically upon GUI trace control stop.<br> |
| 29 | (5) Automatically detect traces with too much processes and disable faulty operations.<br> |
| 30 | (5) Event sequence detector (inspired from regular expressions).<br> |
| 31 | (7) Create a hardware counter viewer (low cost rate counters : L1 cache miss, |
| 32 | page faults, interrupts...). This will be a generalisation of the event rate |
| 33 | view into a view of the evolution of a user definable event field.<br> |
| 34 | <br> |
| 35 | * TO FIX<br> |
| 36 | (10) Event filter : event.time does not work.<br> |
| 37 | (10) Add cancel button to LTTV filter GUI window.<br> |
| 38 | (10) Sometimes, in the control flow view, a process with 0 creation time is |
| 39 | created in addition to the real process itself. Seems to be caused by end of |
| 40 | process life.<br> |
| 41 | <br> |
| 42 | <br> |
| 43 | <big>LTT Next Generation Roadmap<small><br> |
| 44 | <br> |
| 45 | * TODO<br> |
| 46 | (4) Add Xen support.<br> |
| 47 | # <A HREF="mailto:Mathieu Desnoyers <compudj@krystal.dyndns.org>">Mathieu Desnoyers</A><br> |
| 48 | # <A HREF="mailto:Parisa Heidari <parisa.heidari@polymtl.ca>">Parisa Heidari</A><br> |
| 49 | (4) efficient dynamic event filtering while recording trace.<br> |
| 50 | % Sensis Corp. <A HREF="mailto:Bish, Tim <Tim.Bish@Sensis.com>">Tim Bish</A><br> |
| 51 | (4) instrument kernel bottom half irqsave, spinlocks, rwlocks, seqlocks, semaphores, mutexes, brlock.<br> |
| 52 | (4) integrate NPTL instrumentation (see |
| 53 | <A HREF="http://nptltracetool.sourceforge.net/">PTT</A>).<br> |
| 54 | (5) Support CPUs with scalable frequency.<br> |
| 55 | (5) Integrate LTTng and lttd with LKCD.<br> |
| 56 | (7) Integrate periodical dump of perfctr hardware counters.<br> |
| 57 | (8) Integrate periodical dump of SystemTAP computed information.<br> |
| 58 | (8) Integrate SystemTAP logging with LTTng.<br> |
| 59 | (9) Add support for setjmp/longjmp and jump tables instrumentation to |
| 60 | ltt-instrument-functions.<br> |
| 61 | (9) Make ltt-usertrace-fast support internal heartbeat timer.<br> |
| 62 | (3) port LTTng to :<br> |
| 63 | %IBM<br> |
| 64 | x86_64<BR> |
| 65 | #Autodesk <A HREF="mailto:Francois L'Archeveque <fla@discreet.com>">Francois |
| 66 | L'Archeveque</A> for 2.6.9 RedHat Enterprise (patch available in contrib, still |
| 67 | has to be ported to 2.6.14, thanks!)<BR> |
| 68 | # Wind River for 2.6.14<BR> |
| 69 | PPC<BR> |
| 70 | PPC64<BR> |
| 71 | # Wind River for 2.6.14<BR> |
| 72 | alpha<BR> |
| 73 | user-mode Linux<BR> |
| 74 | Xen<BR> |
| 75 | # IBM |
| 76 | MIPS<BR> |
| 77 | MIPS64<BR> |
| 78 | % Wind River for 2.6.14<BR> |
| 79 | # Tim Bird <A HREF="mailto:tim.bird@as.sony.com">Tim Bird</A><br> |
| 80 | S/390<BR> |
| 81 | <br> |
| 82 | <br> |
| 83 | <br> |
| 84 | * TODO (low priority)<br> |
| 85 | enhance RPM packages for lttng kernel<br> |
| 86 | Integrate header generation (genevent) in kernel build system.<br> |
| 87 | Find a different way to printk from instrumentation : forbidden from schedule |
| 88 | and wakeup (causes a deadlock). -> Modify printk so it uses LTTng tracer!<br> |
| 89 | Export channels via network sockets instead of writing them to disk.<br> |
| 90 | Export buffers with time constraint for "live" visualisation. Use |
| 91 | ltt_force_switch periodically from a timer to insure slow channels do not |
| 92 | interfere with viewing.<br> |
| 93 | Have an optional round-robin mode to write information into multiple channels |
| 94 | from the same source.<br> |
| 95 | <br> |
| 96 | * Need to be discussed<br> |
| 97 | Use 2.6.14 RelayFS control files.<br> |
| 98 | Drop ltt-module-register and ltt-module-unregister, use exported variables.<br> |
| 99 | drop ltt_filter_control, use functions pointers instead.<br> |
| 100 | Merge facilities headers into one big header.<br> |
| 101 | Change the name of XML files from XML to something else.<br> |
| 102 | Remove ltt-base.c.<br> |
| 103 | <br> |
| 104 | <br> |
| 105 | * lttng patch division (0.5.10+) :<br> |
| 106 | <br> |
| 107 | instrumentation.diff<br> |
| 108 | instrumentation-arm.diff<br> |
| 109 | instrumentation-i386.diff<br> |
| 110 | instrumentation-mips.diff<br> |
| 111 | instrumentation-powerpc.diff<br> |
| 112 | instrumentation-ppc.diff<br> |
| 113 | instrumentation-s390.diff<br> |
| 114 | instrumentation-sh.diff<br> |
| 115 | ltt-facilities-headers.diff<br> |
| 116 | ltt-facilities-loader.diff<br> |
| 117 | ltt-facilities.diff<br> |
| 118 | ltt-relayfs.diff<br> |
| 119 | ltt-core.diff<br> |
| 120 | ltt-build.diff<br> |
| 121 | <br> |
| 122 | <br> |
| 123 | Mathieu Desnoyers<br> |
| 124 | |
| 125 | |
| 126 | </body> |
| 127 | </html> |