X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;ds=sidebyside;f=ltt%2Fbranches%2Fpoly%2Fdoc%2Fdeveloper%2Flttng-lttv-roadmap.html;h=1b7a13fcf00d2f83fad7b317ec2f31a97b45aae9;hb=42c475ad7dee9c6e59a5491819ed671c0feabc8a;hp=6760fe421532ef361834c68cb00525bf0d8d4df1;hpb=6575bcd304c962fa821d406a80f632e6a839b607;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 6760fe42..1b7a13fc 100644
--- a/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html
+++ b/ltt/branches/poly/doc/developer/lttng-lttv-roadmap.html
@@ -16,83 +16,109 @@ The % symbol marks who is interested in the realisation of the item.
LTTV Roadmap
* TODO
+(1) Marker integration. Change the byte pair "facility, event" id for a short
+combining the informatinon.
+ # Mathieu Desnoyers
+(3) Add cluster support.
+ # Eric Clement
+(3) Make LTTV aware of type formats (visual separators) defined in the XML
+file.
+ # Gabriel Matni
(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
+(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.
-(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.
+(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]
+(4) Add sort by process priority in the control flow view (must also instrument
+priority information of the processes).
+% Airbus
+(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.
+
+* 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
-(1) Use 2.6.14 RelayFS control files.
-(2) add efficient and secure user space tracing. (1 month)
-(3) integrate LTTng State Dump : missing irq and process state.
- # Jean-Hugues Deschenes
-(4) efficient dynamic event filtering while recording trace.
+(1) efficient dynamic event filtering while recording trace.
+ % Google
% Sensis Corp. Tim Bish
-(4) Create the heartbeat timer LTTng module. Make sure that heartbeat events
-never hit the facility channel. Use the complete 64 bits TSC for the facility
-channel in every case. That's because this channel must never be overwritten
-even in "flight recorder" mode.
+ # Mathieu Desnoyers
+ - Partly implemented: per marker selection through /proc interface.
+ - Must still implement per active trace filtering.
+(1) Add Xen support. (Trace buffer desallocation needs to be fixed)
+ # Mathieu Desnoyers
+(1) Integrate SystemTAP logging with LTTng.
+(4) instrument kernel bottom half irqsave, 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.
-(7) add gcc -finstrument-functions instrumentation
(7) Integrate periodical dump of perfctr hardware counters.
+(8) Integrate periodical dump of SystemTAP computed information.
+(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
+# IBM
S/390
+RTLinux
+% Wind River for 2.6.14
+sparc64
+# Wind River
+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.
Drop ltt-module-register and ltt-module-unregister, use exported variables.
drop ltt_filter_control, use functions pointers instead.
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 (0.4.2+) :
-
-ltt-instrumentation.diff
-ltt-facilities-headers.diff
-ltt-facilities-loader.diff
-ltt-facilities.diff
-ltt-relayfs.diff
-ltt-core.diff
-
-
Mathieu Desnoyers