Настроение:

amused

Ok. Here is the 1 second faster version
You can test yourself:
https://github.com/NancyAurum/dest/blob/main/tools/symta.zip

$ time ./symta.exe -e 'I 0; while I < 1000000000: ++I; say I'
1000000000
No
real    0m 9.35s
user    0m 0.42s
sys     0m 0.00s

Maybe it is indeed possible to do it in 3 seconds, but I guess that will require manually generating assembly code and supplying the proper type info, which Anon claims Java does:
http://lj.rossia.org/users/nancygold/192838.html?thread=1556038#t1556038

unsure if Java can also break larger loops to run in parallel.