X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fdoc%2Fdeveloper%2Flttng-lttv-roadmap.html;h=4cd49d1b5a7dc0309c557a116a987b6bc69af24c;hb=0c8bbfb74fe44e05e943223c0f697cb2ae0a3d38;hp=d1674a563e89e53b102c81dea2cab3f51880b245;hpb=f4e86fd856ee466411bbb427b1adc0b7f7750c4a;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 d1674a56..4cd49d1b 100644 --- a/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html +++ b/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html @@ -16,72 +16,95 @@ The % symbol marks who is interested in the realisation of the item.
LTTV Roadmap

* TODO
-(3) Make LTTV aware of type formats defined in the XML 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) Integrate Kernel State Dump information.
-(4) create a event rate graphical view : Will be useful in conjunction with the - filter.
- # Parisa Heidari
+(3) Change the byte pair "facility, event" id for a short combining the +informatinon.
+(4) Statistics per time window.
+(4) Add Xen per physical CPU view.
+(4) Add Xen per vcpu view.
+(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 an analysis of function time (like a precise gprof).
- -> with gcc -f inline-functions
-(7) Create a hardware counter viewer (low cost rate counters : L1 cache miss, page faults, interrupts...).
-(10) Add cancel button to LTTV filter GUI window. +(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.
+
+* 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) add efficient and secure user space tracing. (1 month)
+(1) CPU Hotplug support. (Only ltt-heartbeat needs to be fixed).
+(1) Add Xen support.
# Mathieu Desnoyers
-(3) LTTng State Dump : fix process states (currently forced to unknown).
- # Jean-Hugues Deschenes
+(1) Integrate SystemTAP logging with LTTng.
+(2) Test and post to LKML Linux Kernel Markers.
+(3) Change the byte pair "facility, event" id for a short combining the +informatinon.
(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) 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) Add boot time tracing support.
(5) Integrate LTTng and lttd with LKCD.
-(6) Add Xen support.
-(7) add gcc -finstrument-functions instrumentation
(7) Integrate periodical dump of perfctr hardware counters.
(8) Integrate periodical dump of SystemTAP computed information.
-(8) Integrate SystemTAP logging with LTTng.
+(9) Rethink facility logging code (genevent output). Maybe unneeded because of +markers/probes mechanism.
+(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
alpha
user-mode Linux
Xen
-MIPS
-MIPS64
-%Wind River for 2.6.14
-ARM
- # Richard Purdie
- # Mathieu Desnoyers
+# IBM
S/390
+RTLinux
+% Wind River for 2.6.14
+sh4



* TODO (low priority)
enhance RPM packages for lttng kernel
Integrate header generation (genevent) in kernel build system.
-Multithreaded lttd.
-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 interfere with viewing.
+Have an optional round-robin mode to write information into multiple channels +from the same source.

* Need to be discussed
Use 2.6.14 RelayFS control files.
@@ -91,25 +114,6 @@ Merge facilities headers into one big header.
Change the name of XML files from XML to something else.
Remove ltt-base.c.

-
-* lttng patch division (0.5.10+) :
-
-instrumentation.diff -instrumentation-arm.diff -instrumentation-i386.diff -instrumentation-mips.diff -instrumentation-powerpc.diff -instrumentation-ppc.diff -instrumentation-s390.diff -instrumentation-sh.diff -ltt-facilities-headers.diff
-ltt-facilities-loader.diff
-ltt-facilities.diff
-ltt-relayfs.diff
-ltt-core.diff
-ltt-build.diff
-
-
Mathieu Desnoyers