ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html

   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) Make LTTV aware of type formats (visual separators) defined in the XML
  20 file.<br>
  21 (3) Use a per architecture enumeration for traps.<br>
  22 (4) Add event specific fields support to filter.<br>
  23 (4) create a graphical per cpu activity view.<br>
  24 (5) Add Python scripting hooks.<br>
  25 (5) Flight recorder : start lttd automatically upon GUI trace control stop.<br>
  26 (5) Automatically detect traces with too much processes and disable faulty operations.<br>
  27 (5) Event sequence detector (inspired from regular expressions).<br>
  28 (7) Create a hardware counter viewer (low cost rate counters : L1 cache miss,
  29 page faults, interrupts...). This will be a generalisation of the event rate
  30 view into a view of the evolution of a user definable event field.<br>
  31 (10) Add cancel button to LTTV filter GUI window.
  32 <br>
  33 <br>
  34 <big>LTT Next Generation Roadmap<small><br>
  35 <br>
  36 * TODO<br>
  37 (2) Make ltt-usertrace-fast support internal heartbeat timer.<br>
  38         # <A HREF="mailto:Mathieu Desnoyers <compudj@krystal.dyndns.org>">Mathieu Desnoyers</A><br>
  39 (3) LTTng State Dump : fix process states (currently forced to unknown).<br>
  40         # <A HREF="mailto:Jean-Hugues Deschenes <jean-hugues.deschenes@polymtl.ca>">Jean-Hugues Deschenes</A><br>
  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>
  43 (5) Support CPUs with scalable frequency.<br>
  44 (5) Integrate LTTng and lttd with LKCD.<br>
  45 (6) Add Xen support.<br>
  46 (7) Integrate periodical dump of perfctr hardware counters.<br>
  47 (8) Integrate periodical dump of SystemTAP computed information.<br>
  48 (8) Integrate SystemTAP logging with LTTng.<br>
  49 (9) Add support for setjmp/longjmp and jump tables instrumentation to
  50 ltt-instrument-functions.<br>
  51 (3) port LTTng to :<br>
  52 x86_64<BR>
  53 #Autodesk <A HREF="mailto:Francois L'Archeveque <fla@discreet.com>">Francois
  54 L'Archeveque</A> for 2.6.9 RedHat Enterprise (patch available in contrib, still
  55 has to be ported to 2.6.14, thanks!)<BR>
  56 #Wind River for 2.6.14<BR>
  57 PPC<BR>
  58 PPC64<BR>
  59 #Wind River for 2.6.14<BR>
  60 %IBM<br>
  61 alpha<BR>
  62 user-mode Linux<BR>
  63 Xen<BR>
  64 MIPS<BR>
  65 MIPS64<BR>
  66 #<A HREF="mailto:Mathieu Desnoyers <compudj@krystal.dyndns.org>">Mathieu Desnoyers</A><br>
  67 %C2 Microsystems<br>
  68 %Wind River for 2.6.14<BR>
  69 S/390<BR>
  70 <br>
  71 <br>
  72 <br>
  73 * TODO (low priority)<br>
  74 enhance RPM packages for lttng kernel<br>
  75 Integrate header generation (genevent) in kernel build system.<br>
  76 Find a different way to printk from instrumentation : forbidden from schedule
  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
  80 ltt_force_switch periodically from a timer to insure slow channels do not
  81 interfere with viewing.<br>
  82 Have an optional round-robin mode to write information into multiple channels
  83 from the same source.<br>
  84 <br>
  85 * Need to be discussed<br>
  86 Use 2.6.14 RelayFS control files.<br>
  87 Drop ltt-module-register and ltt-module-unregister, use exported variables.<br>
  88 drop ltt_filter_control, use functions pointers instead.<br>
  89 Merge facilities headers into one big header.<br>
  90 Change the name of XML files from XML to something else.<br>
  91 Remove ltt-base.c.<br>
  92 <br>
  93 <br>
  94 * lttng patch division (0.5.10+) :<br>
  95 <br>
  96 instrumentation.diff<br>
  97 instrumentation-arm.diff<br>
  98 instrumentation-i386.diff<br>
  99 instrumentation-mips.diff<br>
 100 instrumentation-powerpc.diff<br>
 101 instrumentation-ppc.diff<br>
 102 instrumentation-s390.diff<br>
 103 instrumentation-sh.diff<br>
 104 ltt-facilities-headers.diff<br>
 105 ltt-facilities-loader.diff<br>
 106 ltt-facilities.diff<br>
 107 ltt-relayfs.diff<br>
 108 ltt-core.diff<br>
 109 ltt-build.diff<br>
 110 <br>
 111 <br>
 112 Mathieu Desnoyers<br>
 113
 114
 115 </body>
 116 </html>