hello world in Haskell

$ cat test.hs
main = do
     putStrLn "hello world"

$ ghc test.hs -o test
[1 of 1] Compiling Main             ( test.hs, test.o ) [Optimisation flags changed]
Linking test ...

$ time ./test
hello world

real	0m0.002s
user	0m0.000s
sys	0m0.002s

$ wc -c test
992592 test

$ strace -c ./test
hello world
% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 42.53    0.001324          31        42           mmap
 11.73    0.000365          30        12           mprotect
  8.16    0.000254          28         9           openat
  8.03    0.000250          31         8           read
  5.59    0.000174          19         9           close
  4.59    0.000143          15         9           fstat
  2.79    0.000087          17         5           clock_gettime
  2.76    0.000086           6        14           rt_sigaction
  2.31    0.000072          10         7           rt_sigprocmask
  2.25    0.000070          11         6           madvise
  1.99    0.000062          62         1           arch_prctl
  1.45    0.000045          45         1           write
  1.03    0.000032          32         1           munmap
  0.87    0.000027          27         1           sysinfo
  0.84    0.000026          26         1           timer_create
  0.80    0.000025          25         1           poll
  0.80    0.000025          25         1           ioctl
  0.45    0.000014           4         3           brk
  0.39    0.000012           6         2           timer_settime
  0.22    0.000007           7         1           timer_delete
  0.16    0.000005           5         1           prlimit64
  0.13    0.000004           4         1           set_tid_address
  0.13    0.000004           4         1           set_robust_list
  0.00    0.000000           0         1         1 access
  0.00    0.000000           0         1           execve
------ ----------- ----------- --------- --------- ----------------
100.00    0.003113                   139         1 total

(26 unique syscalls, 139 total)

$ strip ./test

$ wc -c ./test
799840 ./test