11 Commits

Author SHA1 Message Date
WGH
47be22e62a
Use std::shared_ptr for variable resolution
AnchoredSetVariable::resolve is called for every rule
(see RuleWithOperator::evaluate). The previous implementation allocated
a new copy of every variable, which quickly added up. In my tests,
AnchoredSetVariable::resolve function consumed 7.8% of run time.

AnchoredSetVariable (which is a multimap) values are never changed,
only added. This means it's safe to store them in std::shared_ptr,
and make resolve return shared_ptr pointing to the same object.

Other resolve implementation could also use this optimization by not
allocating new objects, however, they are not hot spots, so this
optimization was not implemented there.

In my benchmark, this raises performance from 117 requests per second to
131 RPS, and overhead is lowered from 7.8% to 2.4%.

As a bonus, replacing plain pointer with smart pointers make code
cleaner, since using smart pointers makes manual deletes no longer necessary.

Additionally, VariableOrigin is now stored in plain std::vector,
since it's wasteful to store structure containing just two integer
values using std::list<std::unique_ptr<T>>.
2020-08-10 10:35:07 -03:00
Felipe Zimmerle
32e776daa9
Makes operator to use string_view 2020-08-06 21:36:11 -03:00
Felipe Zimmerle
357c140003
Changens copyright year 2020-01-31 10:32:37 -03:00
Felipe Zimmerle
fe98ce4c7d
Cosmetics: address cppcheck warnings 2020-01-30 18:19:34 -03:00
Felipe Zimmerle
86a5f471a9
Cosmetics: fixed static analysis issues. 2020-01-15 20:35:59 -03:00
Felipe Zimmerle
eeec7efb68
Renames collection::Variable to VariableValue 2018-02-20 13:40:01 -03:00
Felipe Zimmerle
7ac6bf7241
Fix memory issues while resolving variables 2017-08-27 22:06:20 -03:00
Felipe Zimmerle
4ad3574cf2
Adds offset regression tests and assorted fixes on var's offsets 2017-03-06 15:02:02 -03:00
Felipe Zimmerle
d851699529
Adds references to the collection variables 2017-03-06 15:02:00 -03:00
Felipe Zimmerle
e95efa05cc
Fix assorted memory and static analysis errors 2017-03-06 15:02:00 -03:00
Felipe Zimmerle
f2d149fc5f
Extends the direct access model to other collections 2017-03-06 15:02:00 -03:00