X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fdoc%2Fdeveloper%2Fltt-experimental-rewrite.html;h=71ad8ab729ac39787a6fc8a40bbae3b59c886294;hb=782157da558cc93f9953377b71fd16da0e3e9180;hp=f3d82989d826805ef3f59008d7a85752a10c2cfe;hpb=baffa645f5274a7feeb94cdcdf8eb0995b2ec107;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 f3d82989..71ad8ab7 100644 --- a/ltt/branches/poly/doc/developer/ltt-experimental-rewrite.html +++ b/ltt/branches/poly/doc/developer/ltt-experimental-rewrite.html @@ -1,5 +1,17 @@ +Progress in LTTV :
+* 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.
+
+*TODO
+Read current trace header and buffer header.
+migrate align to lttv parser.
+make lttv aware of the per facility long, void* and size_t types.
+
+
Here the status of the work in progress for LTT experimental

* Done
@@ -12,13 +24,30 @@ Fix the traps -> disable nested logging for now.
Use per cpu spinlock on trace list.
Finish the control module, libltt and lttctl : netlink interface
Finish integrating lttctl with lttd.
-
-
-* TODO
+fix lttctl signal waiting : use a flag.
+Add ltt_write_commit_counter call to genevent.
Add information in the buffer header : buffer size, etc etc...
-> this information is so small that we can repeat it. Makes flight recorder easier to decode.
-Add trace start structure to facility channel.
+Add trace start structure to buffer start header.
+fix genevent : take no lock if num traces active is 0.
+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 +at compile time which can differ inside the same process from one library to +another).
+fix structures alignment, array and sequences too. -> trace dynamic.
+add per facility alignment (inside structures).
+add control of alignment.
+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).
+
+
+* TODO
+add user space tracing.
+add genevent full functionnality : alignment, array, sequences, nested +structures.