I/O related performance benchmarks

Matthias Vogelgesang a94994dcd5 Add test to measure modification time пре 9 година
hdf5 a94994dcd5 Add test to measure modification time пре 9 година
tiff dfbfe3b766 Unify and simplify flags for older machines пре 9 година
.gitignore d442381b2a Build hdf5perf and ignore executable пре 9 година
Makefile 9407467baa Fix CFLAGS once and for all пре 9 година
c.mk 9407467baa Fix CFLAGS once and for all пре 9 година