scripts/trace.pl: Optimize event parsing and processing
A couple of small optimizations which altogether bring around 30%
improvement in my testing.
1. Do less string processing on tracepoints names and push more of the
check into the if-ladder.
2. Pull out common db key and ctx processing and cache common values in
local vars.
3. Key value pair parsing is faster with a regexp.
4. Avoid sorting the db hash multiple times if possible.
v2:
* Use faster key-value splitting method. (John Harrison)
v3:
* Fix floating-point to int time conversion.
v4:
* Fix refactoring and logic fails. (John Harrison)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: John Harrison <John.C.Harrison@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
1 file changed