| 1f2c88b1 |
1 | <html> |
| 2 | <body> |
| e3a30a9e |
3 | <center><big><big>LTTV & LTTng roadmap<small><small></center> |
| 674fa3b3 |
4 | <br> |
| 5 | <br> |
| 5e11a375 |
6 | Here are the roadmaps for the LTTV and LTTng development. I use a priority indice |
| fc5993d2 |
7 | for the TODO items :<br> |
| 90d65afc |
8 | (1) : very high priority<br> |
| 9 | (10): lowest priority<br> |
| fc5993d2 |
10 | <br> |
| 11 | <br> |
| 6b18b620 |
12 | Dependencies are written between brackets [ ].<br> |
| 59656e3f |
13 | The # symbol marks who is currently working on the item.<br> |
| e565223b |
14 | The % symbol marks who is interested in the realisation of the item.<br> |
| 59656e3f |
15 | <br> |
| c8a111eb |
16 | <big>LTTV Roadmap<small><br> |
| 17 | <br> |
| 18 | * TODO<br> |
| 162990b3 |
19 | (3) Add cluster support.<br> |
| 20 | # <A HREF="mailto:Eric Clement <eric.clement@polymtl.ca>">Eric Clement</A><br> |
| ef19b009 |
21 | (3) Make LTTV aware of type formats (visual separators) defined in the XML |
| 22 | file.<br> |
| 15b0e8a4 |
23 | (3) Use a per architecture enumeration for traps.<br> |
| 568c21ab |
24 | (3) Change the byte pair "facility, event" id for a short combining the |
| 25 | informatinon.<br> |
| 3ccb19e4 |
26 | (4) Statistics per time window.<br> |
| 27 | (4) Disable plugins when threshold reached (i.e. too much process in control |
| 28 | flow view). Draw, and, when the threshold is reached, stop drawing. The global |
| 29 | statistics view can inhibit showing the per process stats.<br> |
| 568c21ab |
30 | (4) Add a visual artifact : PID 0 could be named swapper instead of UNNAMED for |
| 31 | cpus > 0.<br> |
| 16fe6efa |
32 | (4) Add event specific fields support to filter.<br> |
| 6ed34001 |
33 | (4) Add a periodic event interval view. (useful to verify event periodicity)<br> |
| 2d569f51 |
34 | (4) create a graphical per cpu activity view.<br> |
| e6284587 |
35 | (4) Filter by target process.<br> |
| cdee9265 |
36 | (4) Compensate for time spent in probes in LTTV analysis.<br> |
| 568c21ab |
37 | (4) Add CPU, network, disk, memory usage histogram. [Per interval statistics]<br> |
| b35779fc |
38 | (5) Add Python scripting hooks.<br> |
| 80f91a14 |
39 | (5) Add GUI interface to take an hybrid trace.<br> |
| b0a1cd56 |
40 | (5) Flight recorder : start lttd automatically upon GUI trace control stop.<br> |
| caf22319 |
41 | (5) Automatically detect traces with too much processes and disable faulty operations.<br> |
| b0a1cd56 |
42 | (5) Event sequence detector (inspired from regular expressions).<br> |
| c5cab5d9 |
43 | (7) Create a hardware counter viewer (low cost rate counters : L1 cache miss, |
| 44 | page faults, interrupts...). This will be a generalisation of the event rate |
| 45 | view into a view of the evolution of a user definable event field.<br> |
| b85b85e5 |
46 | <br> |
| 162990b3 |
47 | * TO FIX<br> |
| b85b85e5 |
48 | (10) Add cancel button to LTTV filter GUI window.<br> |
| 49 | (10) Sometimes, in the control flow view, a process with 0 creation time is |
| 50 | created in addition to the real process itself. Seems to be caused by end of |
| 51 | process life.<br> |
| 5355b763 |
52 | (10) Statistics do not take in account the time spent in the mode present at |
| 53 | the beginning of the trace. Example : real time spent in system call on behalf |
| 54 | of process 0.<br> |
| c8a111eb |
55 | <br> |
| 56 | <br> |
| c8a111eb |
57 | <big>LTT Next Generation Roadmap<small><br> |
| 0c4b3d55 |
58 | <br> |
| c8a111eb |
59 | * TODO<br> |
| 00748255 |
60 | (1) Integrate SystemTAP logging with LTTng.<br> |
| 9d7c4d4a |
61 | (2) Rethink facility logging code (genevent output).<br> |
| cb374fc3 |
62 | (2) Post an updated LTTng version to LKML (2.6.18-rcX).<br> |
| 568c21ab |
63 | (3) Change the byte pair "facility, event" id for a short combining the |
| 64 | informatinon.<br> |
| 285468d4 |
65 | (4) Add Xen support.<br> |
| 51096bff |
66 | # <A HREF="mailto:Mathieu Desnoyers <compudj@krystal.dyndns.org>">Mathieu Desnoyers</A><br> |
| 285468d4 |
67 | # <A HREF="mailto:Parisa Heidari <parisa.heidari@polymtl.ca>">Parisa Heidari</A><br> |
| 59ce71d0 |
68 | (4) efficient dynamic event filtering while recording trace.<br> |
| 69 | % Sensis Corp. <A HREF="mailto:Bish, Tim <Tim.Bish@Sensis.com>">Tim Bish</A><br> |
| 1e5a121c |
70 | (4) instrument kernel bottom half irqsave, spinlocks, rwlocks, seqlocks, semaphores, mutexes, brlock.<br> |
| 568c21ab |
71 | (4) Try to use my own non LOCK prefixed version of atomic operations : we are |
| 72 | using per-CPU variables, so it should make it possible.<br> |
| 1e5a121c |
73 | (4) integrate NPTL instrumentation (see |
| 74 | <A HREF="http://nptltracetool.sourceforge.net/">PTT</A>).<br> |
| cdee9265 |
75 | (4) Probe calibration kernel module.<br> |
| a7bdb436 |
76 | (4) Make page faults detect nested fault without nesting 4 times in the page |
| 77 | fault handler.<br> |
| 3f43b8fb |
78 | (5) Support CPUs with scalable frequency.<br> |
| 2a341212 |
79 | (5) Integrate LTTng and lttd with LKCD.<br> |
| 575b7e97 |
80 | (7) Integrate periodical dump of perfctr hardware counters.<br> |
| cc5ce8a0 |
81 | (8) Integrate periodical dump of SystemTAP computed information.<br> |
| 9fd0275c |
82 | (9) Add support for setjmp/longjmp and jump tables instrumentation to |
| 451c9b19 |
83 | ltt-instrument-functions.<br> |
| 51096bff |
84 | (9) Make ltt-usertrace-fast support internal heartbeat timer.<br> |
| 6b18b620 |
85 | (3) port LTTng to :<br> |
| e565223b |
86 | alpha<BR> |
| 87 | user-mode Linux<BR> |
| 88 | Xen<BR> |
| 841c926b |
89 | # IBM<BR> |
| e565223b |
90 | S/390<BR> |
| d804e215 |
91 | RTLinux<BR> |
| 92 | % Wind River for 2.6.14<BR> |
| 0c4b3d55 |
93 | <br> |
| 15e89ad6 |
94 | <br> |
| b720b182 |
95 | <br> |
| 96 | * TODO (low priority)<br> |
| cbe85414 |
97 | enhance RPM packages for lttng kernel<br> |
| b720b182 |
98 | Integrate header generation (genevent) in kernel build system.<br> |
| 63eeefc3 |
99 | Export channels via network sockets instead of writing them to disk.<br> |
| 100 | Export buffers with time constraint for "live" visualisation. Use |
| 6b18b620 |
101 | ltt_force_switch periodically from a timer to insure slow channels do not |
| 63eeefc3 |
102 | interfere with viewing.<br> |
| 44397e24 |
103 | Have an optional round-robin mode to write information into multiple channels |
| 104 | from the same source.<br> |
| b720b182 |
105 | <br> |
| 15e89ad6 |
106 | * Need to be discussed<br> |
| af3cfedc |
107 | Use 2.6.14 RelayFS control files.<br> |
| b720b182 |
108 | Drop ltt-module-register and ltt-module-unregister, use exported variables.<br> |
| b720b182 |
109 | drop ltt_filter_control, use functions pointers instead.<br> |
| b720b182 |
110 | Merge facilities headers into one big header.<br> |
| 111 | Change the name of XML files from XML to something else.<br> |
| 112 | Remove ltt-base.c.<br> |
| 113 | <br> |
| b720b182 |
114 | <br> |
| 2966f052 |
115 | * lttng patch division (0.5.10+) :<br> |
| 116 | <br> |
| 451c9b19 |
117 | instrumentation.diff<br> |
| 118 | instrumentation-arm.diff<br> |
| 119 | instrumentation-i386.diff<br> |
| 120 | instrumentation-mips.diff<br> |
| 121 | instrumentation-powerpc.diff<br> |
| 122 | instrumentation-ppc.diff<br> |
| 123 | instrumentation-s390.diff<br> |
| 124 | instrumentation-sh.diff<br> |
| b720b182 |
125 | ltt-facilities-headers.diff<br> |
| 126 | ltt-facilities-loader.diff<br> |
| 127 | ltt-facilities.diff<br> |
| b720b182 |
128 | ltt-relayfs.diff<br> |
| b720b182 |
129 | ltt-core.diff<br> |
| 2966f052 |
130 | ltt-build.diff<br> |
| b720b182 |
131 | <br> |
| 132 | <br> |
| 133 | Mathieu Desnoyers<br> |
| 1f2c88b1 |
134 | |
| 135 | |
| 136 | </body> |
| 137 | </html> |
projects / lttv.git / blame