X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fdoc%2Fdeveloper%2Flttng-lttv-roadmap.html;h=af9bd0540ba28f2a5c45fab0ab8909ccea70eca0;hb=b522d025f688c8bf10ca49146f21b683b9b19d19;hp=c529f34a2e74d831077f6babddc6304bbfe19531;hpb=9fd0275c126b6cde29952133765477522b7ff96b;p=lttv.git diff --git a/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html b/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html index c529f34a..af9bd054 100644 --- a/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html +++ b/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html @@ -16,65 +16,87 @@ The % symbol marks who is interested in the realisation of the item.
LTTV Roadmap

* TODO
+(3) Add cluster support.
+ # Eric Clement
(3) Make LTTV aware of type formats (visual separators) defined in the XML file.
(3) Use a per architecture enumeration for traps.
+(3) Change the byte pair "facility, event" id for a short combining the +informatinon.
+(4) Statistics per time window.
+(4) Disable plugins when threshold reached (i.e. too much process in control +flow view). Draw, and, when the threshold is reached, stop drawing. The global +statistics view can inhibit showing the per process stats.
+(4) Add a visual artifact : PID 0 could be named swapper instead of UNNAMED for +cpus > 0.
(4) Add event specific fields support to filter.
+(4) Add a periodic event interval view. (useful to verify event periodicity)
(4) create a graphical per cpu activity view.
+(4) Filter by target process.
+(4) Compensate for time spent in probes in LTTV analysis.
+(4) Add CPU, network, disk, memory usage histogram. [Per interval statistics]
(5) Add Python scripting hooks.
+(5) Add GUI interface to take an hybrid trace.
(5) Flight recorder : start lttd automatically upon GUI trace control stop.
(5) Automatically detect traces with too much processes and disable faulty operations.
(5) Event sequence detector (inspired from regular expressions).
(7) Create a hardware counter viewer (low cost rate counters : L1 cache miss, page faults, interrupts...). This will be a generalisation of the event rate view into a view of the evolution of a user definable event field.
-(10) Add cancel button to LTTV filter GUI window. +
+* TO FIX
+(10) Add cancel button to LTTV filter GUI window.
+(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 +process life.
+(10) Statistics do not take in account the time spent in the mode present at +the beginning of the trace. Example : real time spent in system call on behalf +of process 0.


LTT Next Generation Roadmap

* TODO
-(2) Make ltt-usertrace-fast support internal heartbeat timer.
+(1) Adapt printk to use LTTng.
+(1) Integrate SystemTAP logging with LTTng.
+(2) Rethink facility logging code (genevent output).
+(2) Post an updated LTTng version to LKML (2.6.18-rcX).
+(3) Change the byte pair "facility, event" id for a short combining the +informatinon.
+(4) Add Xen support.
# Mathieu Desnoyers
-(3) LTTng State Dump : fix process states (currently forced to unknown).
- # Jean-Hugues Deschenes
+ # Parisa Heidari
(4) efficient dynamic event filtering while recording trace.
% Sensis Corp. Tim Bish
+(4) instrument kernel bottom half irqsave, spinlocks, rwlocks, seqlocks, semaphores, mutexes, brlock.
+(4) Try to use my own non LOCK prefixed version of atomic operations : we are +using per-CPU variables, so it should make it possible.
+(4) integrate NPTL instrumentation (see +PTT).
+(4) Probe calibration kernel module.
+(4) Make page faults detect nested fault without nesting 4 times in the page +fault handler.
(5) Support CPUs with scalable frequency.
(5) Integrate LTTng and lttd with LKCD.
-(6) Add Xen support.
(7) Integrate periodical dump of perfctr hardware counters.
(8) Integrate periodical dump of SystemTAP computed information.
-(8) Integrate SystemTAP logging with LTTng.
(9) Add support for setjmp/longjmp and jump tables instrumentation to ltt-instrument-functions.
+(9) Make ltt-usertrace-fast support internal heartbeat timer.
(3) port LTTng to :
-x86_64
-#Autodesk Francois -L'Archeveque for 2.6.9 RedHat Enterprise (patch available in contrib, still -has to be ported to 2.6.14, thanks!)
-#Wind River for 2.6.14
-PPC
-PPC64
-#Wind River for 2.6.14
-%IBM
alpha
user-mode Linux
Xen
-MIPS
-MIPS64
-#Mathieu Desnoyers
-%C2 Microsystems
-%Wind River for 2.6.14
+# IBM
S/390
+RTLinux
+% Wind River for 2.6.14



* TODO (low priority)
enhance RPM packages for lttng kernel
Integrate header generation (genevent) in kernel build system.
-Find a different way to printk from instrumentation : forbidden from schedule -and wakeup (causes a deadlock). -> Modify printk so it uses LTTng tracer!
Export channels via network sockets instead of writing them to disk.
Export buffers with time constraint for "live" visualisation. Use ltt_force_switch periodically from a timer to insure slow channels do not