X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fdoc%2Fdeveloper%2Flttng-lttv-roadmap.html;h=a3f49b0516c66da0e4ab724a156b00848250676e;hb=98152028c4217c4bd7758a1e6f350c1fc938feae;hp=f4c7cf8db5f95ace2101f34ccc4e0caa1575b6e0;hpb=162990b39548930bf59728da8f72c1fba8d4a0ee;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 f4c7cf8d..a3f49b05 100644 --- a/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html +++ b/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html @@ -16,14 +16,26 @@ The % symbol marks who is interested in the realisation of the item.
LTTV Roadmap

* TODO
+(2) Finish pre-computing of states to a file.
(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) Flight recorder : start lttd automatically upon GUI trace control stop.
(5) Automatically detect traces with too much processes and disable faulty operations.
@@ -33,24 +45,41 @@ 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.

* TO FIX
-(10) Event filter : event.time does not work.
(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
+(3) Add sysenter instrumentation on x86. Verify x86_64.
+(3) Fix x86_64 page fault exit missing instrumentation.
+(3) Have various subbuffer sizes for high and low rate channels.
+(3) Change the byte pair "facility, event" id for a short combining the +informatinon.
(4) Add Xen support.
# Mathieu Desnoyers
# 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) In flight recorder mode, have the low traffic channels saved as normal +tracefiles and high traffic channels being flight recorder.
+(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.
+(4) #IBM Test fix for ppc64 kernel 2.6.9 missing syscall return instrumentation.
+(5) Discuss with RelayFS upstream to integrate LTTng modifications.
+(5) Move to DebugFS for channel files.
(5) Support CPUs with scalable frequency.
(5) Integrate LTTng and lttd with LKCD.
(7) Integrate periodical dump of perfctr hardware counters.
@@ -60,32 +89,19 @@ process life.
ltt-instrument-functions.
(9) Make ltt-usertrace-fast support internal heartbeat timer.
(3) port LTTng to :
-%IBM
-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
alpha
user-mode Linux
Xen
-# IBM -MIPS
-MIPS64
-% Wind River for 2.6.14
-# Tim Bird Tim Bird
+# 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