Dependencies are written between brackets [ ].<br>
The # symbol marks who is currently working on the item.<br>
The % symbol marks who is interested in the realisation of the item.<br>
+The $ symbol marks who is contributing funding for the realisation of the item.<br>
<br>
<br>
<big>LTT Next Generation Roadmap<small><br>
<br>
-* TODO<br>
-(1) Get lttng ascii dump to work.<br>
- # <A HREF="mailto:Lai Jiangshan <laijs@cn.fujitsu.com>">Lai Jiangshan</A><br>
-- Create periodical buffer flush per-cpu timer for data streaming.<br>
- # <A HREF="mailto:Mathieu Desnoyers <compudj@krystal.dyndns.org>">Mathieu Desnoyers</A><br>
-- Modify LTTng/lttd/lttv to support variable-sized buffers.<br>
- # <A HREF="mailto:Mathieu Desnoyers <compudj@krystal.dyndns.org>">Mathieu Desnoyers</A><br>
-(1) Support CPUs with scalable frequency.<br>
-(1) Post core set of patches to LKML for mainlining.<br>
-(2) Create 3rd generation of userspace tracing.<br>
+* TODO (high priority)<br>
+<BR>
+(1) LTTng event description: move from tracepoint/markers to Ftrace TRACE_EVENT
+ declarations. Extend TRACE_EVENT as needed.<br>
+# <A HREF="mailto: Douglas Santos <douglas.santos@polymtl.ca>">Douglas Santos</A>)<BR>
+(1) LTTng ring buffer adaptation for FTrace.<br>
+(1) FTrace/LTTng trace format standardization.<BR>
+(1) Extend NO_HZ support vs trace streaming support to other architectures (need
+to add cpu idle notifiers and test).<br>
+(1) Make sure ltt-ascii kernel text dump fits well with streaming hooked into
+cpu idle.<br>
+[Depends on cpu idle notifier port to other architectures]<br>
+(1) Support CPUs with scalable frequency with a time-consistent increment and
+with an approach scalable to SMP. (done for ARM OMAP3 UP only, but the OMAP3
+approach should be tested and probably derived into an SMP implementation)<br>
+<br>
+<br>
+* TODO (medium priority)<br>
+(3) LTTng trace session (support multiple active traces at once) integration
+into Ftrace.<br>
+(3) LTTng and Ftrace DebugFS interface merge.<br>
+(3) LTTng trace clock time-stamping merge into mainline.<br>
+(3) NMI-safe tracing merge into mainline.<br>
+<br>
+<br>
+* Nice to have<br>
+<br>
(3) Bring stack dump in sync with new lttng.<br>
(4) Dump mounts. (to fix)<br>
(4) Add Xen support. (Trace buffer desallocation needs to be fixed)<br>
(4) integrate NPTL instrumentation (see
<A HREF="http://nptltracetool.sourceforge.net/">PTT</A>).<br>
(4) Probe calibration kernel module.<br>
-(4) Make page faults detect nested fault without nesting 4 times in the page
-fault handler. (or use vmalloc_sync_all at each tracing module load)<br>
(5) Add boot time tracing support.<br>
(5) Integrate LTTng and lttd with LKCD.<br>
- # <A HREF="mailto:Lai Jiangshan <laijs@cn.fujitsu.com>>">Lai Jiangshan</A><br>
(7) Integrate periodical dump of perfctr hardware counters.<br>
(8) Integrate SystemTAP logging with LTTng.<br>
(8) Integrate periodical dump of SystemTAP computed information.<br>
(9) Add support for setjmp/longjmp and jump tables instrumentation to
ltt-instrument-functions.<br>
-(3) port LTTng to :<br>
-ARM OMAP3<BR>
-% Nokia<BR>
+<br>
+<br>
+* Done<br>
+<br>
+- (2009) Port LTTng to ARM OMAP3 with power management and dynamic frequency scaling
+ support. (Done by Mathieu Desnoyers, funded by Nokia).<br>
+- (2009) Improvement of trace streaming power consumption efficiency (NO_HZ
+ support) (x86 only for now).<br>
+- (2009) Periodic flush for trace streaming (Mathieu Desnoyers).<br>
+- (2009) Ascii text output from LTTng. (started by Lai Jiangshan (Fujitsu),
+ completed by Mathieu Desnoyers)<br>
<br>
<br>
<big>LTTV Roadmap<small><br>
<br>
-* TODO<br>
-(3) Add cluster support.<br>
+Note: new feature development is currently done in the Linux Tools Project:
+LTTng Integration. Mainwhile, LTTV is maintained as a known-stable viewer.<br>
+<br>
+<br>
+* Nice to have<br>
+<br>
(4) Statistics per time window.<br>
(4) Add Xen per physical CPU view.<br>
(4) Add Xen per vcpu view.<br>
view into a view of the evolution of a user definable event field.<br>
<br>
* TO FIX<br>
+<br>
(10) Add cancel button to LTTV filter GUI window.<br>
(10) Sometimes, in the control flow view, a process with 0 creation time is
created in addition to the real process itself. Seems to be caused by end of
of process 0.<br>
<br>
<br>
-<br>
-* TODO (low priority)<br>
-enhance RPM packages for lttng kernel<br>
-Export buffers with time constraint for "live" visualisation. Use
-ltt_force_switch periodically from a timer to insure slow channels do not
-interfere with viewing.<br>
-Have an optional round-robin mode to write information into multiple channels
-from the same source.<br>
-<br>
-* Need to be discussed<br>
-Drop ltt-module-register and ltt-module-unregister, use exported variables.<br>
-drop ltt_filter_control, use functions pointers instead.<br>
-Remove ltt-base.c.<br>
-<br>
Mathieu Desnoyers<br>
projects / lttv.git / blobdiff