[ev0lution]

The "bind", "myriad" and "nosign" variables have been in since 0.2X and possibly earlier.
"bind [IP]" is to make the server visible on a specific IP if there are multiple IP's on a network card.
"myriad [0/1]" is to enable some "Myriad Islands" mod, it seems to be an old thing.
I'm not sure what "nosign" is, however setting it in server.cfg doesn't seem to have any effect.

I'm not sure what "output" is either, it seems to be new to 0.3a.
The "sleep" variable is something to do with how long the server sleeps, though I'm not sure when this takes effect. Apparently setting it to a higher value (eg. 10) uses less CPU power. Kye and Trix commented on IRC:

Quote:

Originally Posted by #sa-mp [07:12] <@Trix> It causes your thread to sleep (literally do nothing) so that other threads may run on your CPU [07:12] <@Trix> Hence, Sleep is quite.. appropriate [07:13] <@Kye> the server sleeps for 10ms instead of 5ms [07:13] <@Kye> but that means the minimum ping for a player is 10ms [07:13] <@Kye> instead of 5ms

Kye's response, "the server sleeps for 10ms instead of 5ms", was, obviously, for setting the variable as "sleep 10" in server.cfg.