Am 23.06.2016 um 13:29 schröbte Dirk Laurie:
The most interesting result, though, occurred in Lua 5.1.
'select' for very short varargs is indeed very fast.
$ lua5.1 vabench.lua
Lua 5.1, N: 1000000
select #: 0 time: -0.128542 secs
{...} #: 0 time: 0.003643 secs
select #: 1 time: -0.087071 secs
{...} #: 1 time: 0.094904 secs
select #: 2 time: -0.036425 secs
Lua 5.1, N: 1000000
select #: 0 time: 0.120215 secs
{...} #: 0 time: 0.162073 secs
select #: 1 time: 0.128983 secs
{...} #: 1 time: 0.220188 secs
select #: 2 time: 0.192243 secs
{...} #: 2 time: 0.243017 secs
select #: 3 time: 0.240334 secs
{...} #: 3 time: 0.266548 secs
select #: 4 time: 0.284831 secs
{...} #: 4 time: 0.292167 secs
select #: 5 time: 0.342468 secs
{...} #: 5 time: 0.313766 secs
select #: 6 time: 0.402705 secs
{...} #: 6 time: 0.338228 secs
select #: 7 time: 0.473817 secs
{...} #: 7 time: 0.36173 secs
select #: 8 time: 0.556459 secs
{...} #: 8 time: 0.450496 secs
select #: 16 time: 1.106638 secs
{...} #: 16 time: 0.594495 secs
select #: 32 time: 2.780478 secs
{...} #: 32 time: 0.982129 secs
select #: 64 time: 7.671746 secs
{...} #: 64 time: 1.80036 secs
Philipp