Table 1. Execution times on (a) an Intel Xeon Processor E5520 (2.27 GHz) running Microsoft Windows 7 Ultimate and (b) an Apple MacBook Pro with Quad-core Intel Core i7 (2.2 GHz).

		Read time (ms)		Write time (ms)		Validation time (ms)
File name†	File size (kB)	(a)	(b)	(a)	(b)	(a)	(b)
fg3210sup1.cif	25	25	21	20	18	39	28
fg3210cpsup2.hkl	84	42	32	131	106	42	34
4hhb.cif	705	727	604	2061	1622	2658	1312
cif_core_2.4.2.dic	476	142	116	84	69	236	192
mmcif_std_2.0.09.dic	1716	788	677	368	298	1596	1313

^† 4HHB.cif (Fermi et al., 1984 ▶) was downloaded from the PDB web site; fg3210sup1.cif and fg3210CPsup2.hkl (Yufit & Howard, 2011 ▶) were obtained from the IUCr web site.