Dump some possible optimizations notes, Daniel
diff --git a/optim/TOTRY b/optim/TOTRY
new file mode 100644
index 0000000..6e11f7e
--- /dev/null
+++ b/optim/TOTRY
@@ -0,0 +1,23 @@
+XML:
+====
+ - I/O avoid copies when parsing mmap'ed files, need to use
+ unmutable buffers except for the last 4K to make it 0 terminated
+ (or get rid of 0 termination check in the whole parser, hard !)
+ - recheck > 4Gb instances for parsing, and RNG validation.
+
+
+XSLT:
+=====
+ - global variable access
+ for each expr in stylesheet : allocate index
+ for each transformation context
+ create an index table
+ cache values in the transformation
+ - context evaluation
+ - cache
+ - constants at the XPAth level
+ - provide more info on compiled expressions
+ - dependances w.r.t. variables (which ones)
+ - dependancy on the current node
+ - dependancy on the current document
+ - do not use _private but other fields in the node structures.