kudryashov-sv

func FilterJunior(s []int) []int {
	var pos = 0
	for i := 0; i < len(s); i++ {
		if s[i]%3 != 0 {
			s[pos] = s[i]
			pos++
		}
	}
	return s[:pos]
}

kudryashov-sv

Results

[Go]   dream team search: 10000000 iteration, elapsed time: 539984163 ns, iteration time: 53 ns
[Java] standard search  : 10000000 iteration, elapsed time: 574840969, iteration time: 57 ns
[Java] bob search       : 10000000 iteration, elapsed time: 750649175, iteration time: 75 ns

Versions:

• Go 1.10.2
• Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.2+13, mixed mode)

kudryashov-sv

-module(test).

-compile(export_all).

-record(state, {count, ts, big_dict}).

-define(PRINT_PERIOD, timer:seconds(1)).

run(DictSize, Threshold) ->
    Monitor = run_monitor(Threshold),

kudryashov-sv

qsort
*.swp
*.class

kudryashov-sv

SELECT nspname || '.' || relname AS "relation",
    pg_size_pretty(pg_total_relation_size(C.oid)) AS "total_size"
  FROM pg_class C
  LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
  WHERE nspname NOT IN ('pg_catalog', 'information_schema')
    AND C.relkind <> 'i'
    AND nspname !~ '^pg_toast'
  ORDER BY pg_total_relation_size(C.oid) DESC
  LIMIT 20;

kudryashov-sv

db=> create table what(id serial primary key, v text);
CREATE TABLE
db=> with upsert as (update what set v='updated value' where id=42 returning *) insert into what(id, v) select 42, 'inserted value' where not exists (select * from upsert);
INSERT 0 1
db=> select * from what;
id |       v
----+----------------
42 | inserted value
(1 row)