[lttv.git] / ltt / branches / poly / doc / developer / lttng-lttv-roadmap.html

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<center><big><big>LTTV & LTTng roadmap<small><small></center>
<br>
<br>
Here are the roadmaps for the LTTV and LTTng development. I use a priority indice
for the TODO items :<br>
(1) : very high priority<br>
(10): lowest priority<br>
<br>
<br>
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>
<br>
<big>LTTV Roadmap<small><br>
<br>
* TODO<br>
(2) Add support for "stop" button in event list. (disabling event request
scheduler)<br>
(2) Finish pre-computing of states to a file.<br>
(3) Add cluster support.<br>
	# <A HREF="mailto:Eric Clement <eric.clement@polymtl.ca>">Eric Clement</A><br>
(3) Make LTTV aware of type formats (visual separators) defined in the XML
file.<br>
(3) Use a per architecture enumeration for traps.<br>
(4) Add event specific fields support to filter.<br>
(4) Add a periodic event interval view. (useful to verify event periodicity)<br>
(4) create a graphical per cpu activity view.<br>
(5) Add Python scripting hooks.<br>
(5) Flight recorder : start lttd automatically upon GUI trace control stop.<br>
(5) Automatically detect traces with too much processes and disable faulty operations.<br>
(5) Event sequence detector (inspired from regular expressions).<br>
(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.<br>
<br>
* TO FIX<br>
(10) Event filter : event.time does not work.<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
process life.<br>
(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.<br>
<br>
<br>
<big>LTT Next Generation Roadmap<small><br>
<br>
* TODO<br>
(4) Add Xen support.<br>
	# <A HREF="mailto:Mathieu Desnoyers <compudj@krystal.dyndns.org>">Mathieu Desnoyers</A><br>
	# <A HREF="mailto:Parisa Heidari <parisa.heidari@polymtl.ca>">Parisa Heidari</A><br>
(4) efficient dynamic event filtering while recording trace.<br>
	% Sensis Corp. <A HREF="mailto:Bish, Tim <Tim.Bish@Sensis.com>">Tim Bish</A><br>
(4) instrument kernel bottom half irqsave, spinlocks, rwlocks, seqlocks, semaphores, mutexes, brlock.<br>
(4) integrate NPTL instrumentation (see
<A HREF="http://nptltracetool.sourceforge.net/">PTT</A>).<br>
(5) Support CPUs with scalable frequency.<br>
(5) Integrate LTTng and lttd with LKCD.<br>
(7) Integrate periodical dump of perfctr hardware counters.<br>
(8) Integrate periodical dump of SystemTAP computed information.<br>
(8) Integrate SystemTAP logging with LTTng.<br>
(9) Add support for setjmp/longjmp and jump tables instrumentation to
ltt-instrument-functions.<br>
(9) Make ltt-usertrace-fast support internal heartbeat timer.<br>
(3) port LTTng to :<br>
x86_64<BR>
#Autodesk <A HREF="mailto:Francois L'Archeveque <fla@discreet.com>">Francois
L'Archeveque</A> for 2.6.9 RedHat Enterprise (patch available in contrib, still
has to be ported to 2.6.14, thanks!)<BR>
# Wind River for 2.6.14<BR>
PPC<BR>
PPC64<BR>
# Wind River for 2.6.14<BR>
alpha<BR>
user-mode Linux<BR>
Xen<BR>
# IBM<BR>
MIPS<BR>
MIPS64<BR>
% Wind River for 2.6.14<BR>
# Tim Bird <A HREF="mailto:tim.bird@as.sony.com">Tim Bird</A><br>
S/390<BR>
RTLinux<BR>
% Wind River for 2.6.14<BR>
<br>
<br>
<br>
* TODO (low priority)<br>
enhance RPM packages for lttng kernel<br>
Integrate header generation (genevent) in kernel build system.<br>
Find a different way to printk from instrumentation : forbidden from schedule
and wakeup (causes a deadlock). -> Modify printk so it uses LTTng tracer!<br>
Export channels via network sockets instead of writing them to disk.<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>
Use 2.6.14 RelayFS control files.<br>
Drop ltt-module-register and ltt-module-unregister, use exported variables.<br>
drop ltt_filter_control, use functions pointers instead.<br>
Merge facilities headers into one big header.<br>
Change the name of XML files from XML to something else.<br>
Remove ltt-base.c.<br>
<br>
<br>
* lttng patch division (0.5.10+) :<br>
<br>
instrumentation.diff<br>
instrumentation-arm.diff<br>
instrumentation-i386.diff<br>
instrumentation-mips.diff<br>
instrumentation-powerpc.diff<br>
instrumentation-ppc.diff<br>
instrumentation-s390.diff<br>
instrumentation-sh.diff<br>
ltt-facilities-headers.diff<br>
ltt-facilities-loader.diff<br>
ltt-facilities.diff<br>
ltt-relayfs.diff<br>
ltt-core.diff<br>
ltt-build.diff<br>
<br>
<br>
Mathieu Desnoyers<br>


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Commit	Line	Data
1f2c88b1	1	<html>
1f2c88b1	2	<body>
e3a30a9e	3	<center><big><big>LTTV & LTTng roadmap<small><small></center>
674fa3b3	4	<br>
674fa3b3	5	<br>
5e11a375	6	Here are the roadmaps for the LTTV and LTTng development. I use a priority indice
fc5993d2	7	for the TODO items :<br>
90d65afc	8	(1) : very high priority<br>
90d65afc	9	(10): lowest priority<br>
fc5993d2	10	<br>
fc5993d2	11	<br>
6b18b620	12	Dependencies are written between brackets [ ].<br>
59656e3f	13	The # symbol marks who is currently working on the item.<br>
e565223b	14	The % symbol marks who is interested in the realisation of the item.<br>
59656e3f	15	<br>
c8a111eb	16	<big>LTTV Roadmap<small><br>
	17	<br>
	18	* TODO<br>
9f95f0a6	19	(2) Add support for "stop" button in event list. (disabling event request
	20	scheduler)<br>
	21	(2) Finish pre-computing of states to a file.<br>
162990b3	22	(3) Add cluster support.<br>
162990b3	23	# <A HREF="mailto:Eric Clement <eric.clement@polymtl.ca>">Eric Clement</A><br>
ef19b009	24	(3) Make LTTV aware of type formats (visual separators) defined in the XML
ef19b009	25	file.<br>
15b0e8a4	26	(3) Use a per architecture enumeration for traps.<br>
16fe6efa	27	(4) Add event specific fields support to filter.<br>
6ed34001	28	(4) Add a periodic event interval view. (useful to verify event periodicity)<br>
2d569f51	29	(4) create a graphical per cpu activity view.<br>
b35779fc	30	(5) Add Python scripting hooks.<br>
b0a1cd56	31	(5) Flight recorder : start lttd automatically upon GUI trace control stop.<br>
caf22319	32	(5) Automatically detect traces with too much processes and disable faulty operations.<br>
b0a1cd56	33	(5) Event sequence detector (inspired from regular expressions).<br>
c5cab5d9	34	(7) Create a hardware counter viewer (low cost rate counters : L1 cache miss,
	35	page faults, interrupts...). This will be a generalisation of the event rate
	36	view into a view of the evolution of a user definable event field.<br>
b85b85e5	37	<br>
162990b3	38	* TO FIX<br>
b85b85e5	39	(10) Event filter : event.time does not work.<br>
	40	(10) Add cancel button to LTTV filter GUI window.<br>
	41	(10) Sometimes, in the control flow view, a process with 0 creation time is
	42	created in addition to the real process itself. Seems to be caused by end of
	43	process life.<br>
5355b763	44	(10) Statistics do not take in account the time spent in the mode present at
	45	the beginning of the trace. Example : real time spent in system call on behalf
	46	of process 0.<br>
c8a111eb	47	<br>
c8a111eb	48	<br>
c8a111eb	49	<big>LTT Next Generation Roadmap<small><br>
0c4b3d55	50	<br>
c8a111eb	51	* TODO<br>
285468d4	52	(4) Add Xen support.<br>
51096bff	53	# <A HREF="mailto:Mathieu Desnoyers <compudj@krystal.dyndns.org>">Mathieu Desnoyers</A><br>
285468d4	54	# <A HREF="mailto:Parisa Heidari <parisa.heidari@polymtl.ca>">Parisa Heidari</A><br>
59ce71d0	55	(4) efficient dynamic event filtering while recording trace.<br>
59ce71d0	56	% Sensis Corp. <A HREF="mailto:Bish, Tim <Tim.Bish@Sensis.com>">Tim Bish</A><br>
1e5a121c	57	(4) instrument kernel bottom half irqsave, spinlocks, rwlocks, seqlocks, semaphores, mutexes, brlock.<br>
	58	(4) integrate NPTL instrumentation (see
	59	<A HREF="http://nptltracetool.sourceforge.net/">PTT</A>).<br>
3f43b8fb	60	(5) Support CPUs with scalable frequency.<br>
2a341212	61	(5) Integrate LTTng and lttd with LKCD.<br>
575b7e97	62	(7) Integrate periodical dump of perfctr hardware counters.<br>
cc5ce8a0	63	(8) Integrate periodical dump of SystemTAP computed information.<br>
cc5ce8a0	64	(8) Integrate SystemTAP logging with LTTng.<br>
9fd0275c	65	(9) Add support for setjmp/longjmp and jump tables instrumentation to
451c9b19	66	ltt-instrument-functions.<br>
51096bff	67	(9) Make ltt-usertrace-fast support internal heartbeat timer.<br>
6b18b620	68	(3) port LTTng to :<br>
e565223b	69	x86_64<BR>
e4d84ff4	70	#Autodesk <A HREF="mailto:Francois L'Archeveque <fla@discreet.com>">Francois
63eeefc3	71	L'Archeveque</A> for 2.6.9 RedHat Enterprise (patch available in contrib, still
63eeefc3	72	has to be ported to 2.6.14, thanks!)<BR>
162990b3	73	# Wind River for 2.6.14<BR>
e565223b	74	PPC<BR>
e565223b	75	PPC64<BR>
162990b3	76	# Wind River for 2.6.14<BR>
e565223b	77	alpha<BR>
	78	user-mode Linux<BR>
	79	Xen<BR>
841c926b	80	# IBM<BR>
e565223b	81	MIPS<BR>
e565223b	82	MIPS64<BR>
162990b3	83	% Wind River for 2.6.14<BR>
162990b3	84	# Tim Bird <A HREF="mailto:tim.bird@as.sony.com">Tim Bird</A><br>
e565223b	85	S/390<BR>
d804e215	86	RTLinux<BR>
d804e215	87	% Wind River for 2.6.14<BR>
0c4b3d55	88	<br>
15e89ad6	89	<br>
b720b182	90	<br>
b720b182	91	* TODO (low priority)<br>
cbe85414	92	enhance RPM packages for lttng kernel<br>
b720b182	93	Integrate header generation (genevent) in kernel build system.<br>
baffa645	94	Find a different way to printk from instrumentation : forbidden from schedule
63eeefc3	95	and wakeup (causes a deadlock). -> Modify printk so it uses LTTng tracer!<br>
	96	Export channels via network sockets instead of writing them to disk.<br>
	97	Export buffers with time constraint for "live" visualisation. Use
6b18b620	98	ltt_force_switch periodically from a timer to insure slow channels do not
63eeefc3	99	interfere with viewing.<br>
44397e24	100	Have an optional round-robin mode to write information into multiple channels
44397e24	101	from the same source.<br>
b720b182	102	<br>
15e89ad6	103	* Need to be discussed<br>
af3cfedc	104	Use 2.6.14 RelayFS control files.<br>
b720b182	105	Drop ltt-module-register and ltt-module-unregister, use exported variables.<br>
b720b182	106	drop ltt_filter_control, use functions pointers instead.<br>
b720b182	107	Merge facilities headers into one big header.<br>
	108	Change the name of XML files from XML to something else.<br>
	109	Remove ltt-base.c.<br>
	110	<br>
b720b182	111	<br>
2966f052	112	* lttng patch division (0.5.10+) :<br>
2966f052	113	<br>
451c9b19	114	instrumentation.diff<br>
	115	instrumentation-arm.diff<br>
	116	instrumentation-i386.diff<br>
	117	instrumentation-mips.diff<br>
	118	instrumentation-powerpc.diff<br>
	119	instrumentation-ppc.diff<br>
	120	instrumentation-s390.diff<br>
	121	instrumentation-sh.diff<br>
b720b182	122	ltt-facilities-headers.diff<br>
	123	ltt-facilities-loader.diff<br>
	124	ltt-facilities.diff<br>
b720b182	125	ltt-relayfs.diff<br>
b720b182	126	ltt-core.diff<br>
2966f052	127	ltt-build.diff<br>
b720b182	128	<br>
	129	<br>
	130	Mathieu Desnoyers<br>
1f2c88b1	131
	132
	133	</body>
	134	</html>