X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fdoc%2Fdeveloper%2Fformat.html;h=a211ace1e9c6e9e6370e0aa77310df4901aedf7f;hb=bb9014e64a98ba108f6ca0cf005f6791a7c71164;hp=0fa8c4a57a96bc41c5aa866dc4ac6ef4ecb4aad9;hpb=a25fb9c4048f4f413eb1677da8fe762b5ce51356;p=lttv.git

diff --git a/ltt/branches/poly/doc/developer/format.html b/ltt/branches/poly/doc/developer/format.html
index 0fa8c4a5..a211ace1 100644
--- a/ltt/branches/poly/doc/developer/format.html
+++ b/ltt/branches/poly/doc/developer/format.html
@@ -24,7 +24,7 @@ foo/
 |-- eventdefs
 |   |-- core.xml
 |   |-- fs.xml
-|		|-- ipc.xml
+|   |-- ipc.xml
 |   |-- kernel.xml
 |   |-- memory.xml
 |   |-- network.xml
@@ -125,20 +125,12 @@ The block start/end header
 <PRE><TT>
 begin
 	* the beginning of buffer information
-	timestamp
-		* Used only when no TSC is available.
-		uint32 seconds
-		uint32 microseconds
 	uint64 cycle_count
 		* TSC at the beginning of the buffer
 	uint64 freq
 		* frequency of the CPUs at the beginning of the buffer.
 end
 	* the end of buffer information
-	timestamp
-		* Used only when no TSC is available.
-		uint32 seconds
-		uint32 microseconds
 	uint64 cycle_count
 		* TSC at the beginning of the buffer
 	uint64 freq
@@ -181,15 +173,9 @@ uint8 has_alignment
 	* Is the information in this trace aligned ?
 		Yes (1) -> aligned on min(arch size, atomic data size).
 		No (0) -> data is packed.
-uint8 has_tsc
-	* Does the traced machine has a working TSC ?
-		Yes (1) -> event time is calculated from :
-			trace_start_time + ((event_tsc - trace_start_tsc) * freq)
-		No (0) -> event time is calculated from :
-			trace_start_time 
-			+ (buffer start timestamp - trace start_monotonic) 
-			+ (event_time_delta)
-			(not supported)
+uint328 freq_scale
+		event time is always calculated from :
+			trace_start_time + ((event_tsc - trace_start_tsc) * (freq / freq_scale))
 uint64 start_freq
 	* CPUs clock frequency at the beginnig of the trace.
 uint64 start_tsc
@@ -222,9 +208,6 @@ Event header :
 	uint64 timestamp }
 	* if has_heartbeat : 32 LSB of the cycle counter at the event record time.
 	* else : 64 bits complete cycle counter.
-	* note : if there is no working TSC (has_tsc == 0), then this field contains
-	  either the complete monotonically increasing time or the time delta from the
-		previous heartbeat event. (unsupported)
 uint8 facility_id
 	* Numerical ID of the facility corresponding to the event. See the facility
 	  tracefile to know which facility ID matches which facility name and