for n in 100k 1M 10M; do echo -n '*** Processing a' $n 'mailbox: ***'; head -c $n origami_archive > test; time ./mboxparser.cgi > /dev/null; done 
*** Processing a 100k mailbox: ***
real	0m1.399s
user	0m1.364s
sys	0m0.036s
*** Processing a 1M mailbox: ***
real	0m5.943s
user	0m5.880s
sys	0m0.060s
*** Processing a 10M mailbox: ***
real	0m53.079s
user	0m52.991s
sys	0m0.088s