$ csi

CHICKEN
(c) 2008-2015, The CHICKEN Team
(c) 2000-2007, Felix L. Winkelmann
Version 4.10.0 (rev b259631)
windows-cygwin-x86-64 [ 64bit dload ptables ]
compiled 2015-08-04 on yves.more-magic.net (Linux)

readline: rl_catch_signals: unknown variable name
#;1> (use generalized-arrays storage-classes)
#;2> (define vv (make-array vector-storage-class #(1000 1000) "1"))
#;3> (time (array-map vector-storage-class (cute string-append "file" <> ".txt") vv))
2.464s CPU time, 1.356s GC time (major), 4046833/1011541 mutations (total/tracked), 15/7823 GCs (major/minor)
#<array>