The `sync.pool` module provides a convenient way to run identical tasks over an array of items *in parallel*, without worrying about thread synchronization, waitgroups, mutexes etc.., you just need to supply a callback function, that will be called once per each item in your input array. After all the work is done in parallel by the worker threads in the pool, pool.work_on_items will return. You can then call pool.get_results() to retrieve a list of all the results, that the worker callbacks returned for each input item. Example: ```v import sync.pool pub struct SResult { s string } fn sprocess(pp &pool.PoolProcessor, idx int, wid int) &SResult { item := pp.get_item(idx) println('idx: $idx, wid: $wid, item: ' + item) return &SResult{item.reverse()} } fn main() { mut pp := pool.new_pool_processor(callback: sprocess) pp.work_on_items(['1abc', '2abc', '3abc', '4abc', '5abc', '6abc', '7abc']) // optionally, you can iterate over the results too: for x in pp.get_results() { println('result: $x.s') } } ``` See https://github.com/vlang/v/blob/master/vlib/sync/pool/pool_test.v for a more detailed usage example.