Lin4Neuro: a customized Linux distribution ready for neuroimaging analysis

BMC Medical Imaging

Table 2 Benchmark results of the inhomogeneity correction script

Booted from	32/64bit	CPU	CPU frequency	Number of cores	RAM	Processing time of the intensity inhomogeneity correction script
Difference between USB-boot and HDD-boot
HDD	64bit	Core2Quad Q6600	2.4GHz	4	4GB	11min 1.38sec
USB flash drive	64bit	Core2Quad Q6600	2.4GHz	4	4GB	11min 1.30sec
Difference between 32bit and 64bit
USB flash drive	32bit	corei7 L640	2.13GHz	4	3GB	11min 13.01sec
USB flash drive	64bit	corei7 L640	2.13GHz	4	4GB	9min 47.68sec
Difference between 32bit and 64bit on Virtualization software*
VMware player	32bit	corei7 L640	2.13GHz	2	1GB	11min 36.64sec
VMware player	64bit	corei7 L640	2.13GHz	2	1GB	12min 1.23sec

The processing time of intensity inhomogeneity correction for 10 three-dimensional T1-weighted MRI scans was measured using the "time" command in Linux.
*VMware player was executed on 64 bit Windows 7 platform with core i7 L640 (4 cores) with 4GB RAM, but the number of cores and RAM size were reduced to 2 and 1GB, respectively, due to constraints of the emulation mode.

ISSN: 1471-2342