slitaz default open file number is 1024,but i need more,
so(1) i add "ulimit -n 20480" to /etc/rc.local and then reboot the system,it doesn't work;
(2)modify /usr/include/bits/typesizes.h :#define _FD_SETSIZE_ 20480,it also doesn't work.
who knows how to set it,ths