1. trace_span_start() is always called with a string literal, so
no copy needed (and we can use a macro to enforce this).
2. trace_span_tag() name and value are always longer-lived than
the span, so no need to copy these either.
Before:
real 0m18.524000-19.100000(18.7674+/-0.21)s
user 0m16.171000-16.833000(16.424+/-0.26)s
sys 0m2.259000-2.400000(2.337+/-0.059)s
After:
real 0m16.421000-18.407000(17.8128+/-0.72)s
user 0m14.242000-16.041000(15.5382+/-0.67)s
sys 0m2.179000-2.363000(2.273+/-0.061)s
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Any file in this directory which is executable and whose name only
consists of alphanumeric characters, space, '.', '-' or '_' will be
automatically loaded when lightningd starts (unless suppressed with
commandline options).
cdb74434f2