X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;ds=sidebyside;f=ltt%2Fbranches%2Fpoly%2Fdoc%2Fdeveloper%2Fltt-experimental-rewrite.html;h=c9eb8ffa25a5957fcdc4c494402241cddd8a3cdb;hb=90d65afc29b4e632e944c2df3ab75a6cb03ba9a1;hp=aa3f79c1f7fb3b8f75264c277bc82bec46f30179;hpb=4e4d11b3b1db254446f6cad04b3c3fa9b574851f;p=lttv.git diff --git a/ltt/branches/poly/doc/developer/ltt-experimental-rewrite.html b/ltt/branches/poly/doc/developer/ltt-experimental-rewrite.html index aa3f79c1..c9eb8ffa 100644 --- a/ltt/branches/poly/doc/developer/ltt-experimental-rewrite.html +++ b/ltt/branches/poly/doc/developer/ltt-experimental-rewrite.html @@ -1,6 +1,41 @@ -Here the status of the work in progress for LTT experimental
+
LTTV & LTTng roadmap
+
+
+Here are the roadmaps for the LTTV and LTTng development. I use a priority indice +for the TODO items :
+(1) : very high priority
+(10): lowest priority
+
+
+LTTV Roadmap
+
+* TODO
+(4) create a event rate graphical view : Will be useful in conjonction with the + filter.
+(6) migrate align to lttv parser.
+(7) create an analysis of function time (like a precise gprof)
+ -> with gcc -f inline-functions
+
+
+* Done
+Buffer aligned on page boundary -> use valloc.
+per struct (struct align=x) support added to genevent (partial).
+Add offset align generation for structs to genevent.
+make lttv aware of the per facility long, void* and size_t types.
+Read current trace header and buffer header.
+
+LTT Next Generation Roadmap
+
+* TODO
+(1) make LTT tracing code completely atomic (thus remove locks)
+(2) add efficient and secure user space tracing. (1 month)
+(3) integrate LTTng State Dump : missing irq and process state.
+(9) add genevent full functionnality : alignment, array, sequences, nested +structures.
+(7) add gcc -finstrument-functions instrumentation
+

* Done
remove ltt-headers.h
@@ -19,9 +54,6 @@ Add information in the buffer header : buffer size, etc etc...
easier to decode.
Add trace start structure to buffer start header.
fix genevent : take no lock if num traces active is 0.
-
-
-* TODO
Add type information per facility : it will help having a standard way to understand information coming from both kernel space and user space, and deal easily with 64 bits kernel with 64 and 32 bits processes (and with size_t know @@ -30,7 +62,9 @@ another).
fix structures alignment, array and sequences too. -> trace dynamic.
add per facility alignment (inside structures).
add control of alignment.
-add user space tracing.
+add control for subbuffer size and number of subbuffers.
+Add reserve - get TSC - alignment atomicity through the use of cmpxchg.
+Add configurable alignment (LTT_ALIGNMENT).



@@ -53,16 +87,13 @@ Remove the callback struct from the trace struct.



-* Next experimental release patch division :
+* lttng patch division (0.4.2+) :

ltt-instrumentation.diff
- - ltt-configmenu.diff (put in ltt-core.diff)
ltt-facilities-headers.diff
ltt-facilities-loader.diff
ltt-facilities.diff
-ltt-instrumentation.diff
ltt-relayfs.diff
-ltt-time.diff
ltt-core.diff