5.4.1 SecureENCODE Memory Requirements

5.4.1 MEMORY Requirements for Encoding

SecureENCODE Memory Requirements:

We have performed tests to show how SecureDELTA for Windows v2.56 impacts the Operating System when it creates binary diff file or different sizes.

For this test, we are creating a zero delta file, a binary differencing file created from two identical files. Please note the speed and the memory consumption of SecureENCODING procedure varies heavily on the type of data.

The more redundant the data is, the less information is holds therefore few memory is required to hold and further process that information.

See below the differences on memory requirements from a 300MiB file to a 400MiB file. Even if the 400MiB file is bigger in size, its data is more redundant, therefore the memory requirement is lower, 451MiB versus 639MiB+.

We have chosen slightly redundant files with some exceptions for these tests. See details below.

SecureDELTA algorithm:

FILE SIZE		MEMORY USED (MiB) PEAK MEMORY(**)	SecureDELTA File Size (KiB*)	DETAILS
Source File (MiB*)	Target File (MiB*)
100 MiB	100 MiB	163 MiB	1.673 KiB
200 MiB	200 MiB	250 MiB	2.482 KiB
300 MiB	300 MiB	639 MiB	3.362 KiB
400 MiB	400 MiB	451 MiB	4.718 KiB	The total memory used usually depends on the redundancy of files. The higher the redundancy, the faster the encoding operating gets. Also, the operation requires less memory (RAM).
500 MiB	500 MiB	862 MiB	6.303 KiB
600 MiB	600 MiB	963 MiB	7.319 KiB
700 MiB	700 MiB	1.072 MiB	7.926 KiB
800 MiB	800 MiB	1.374 MiB	8.996 KiB
900 MiB	900 MiB	1.376 MiB	9.747 KiB	The total memory used greatly depends on the redundancy of files. The higher the redundancy, the faster the encoding operating gets. Also, the operation requires less memory (RAM).
1.000 MiB	1.000 MiB	1.458 MiB	10.701 KiB
1.100 MiB	1.100 MiB	1.561 MiB	11.661 KiB
1.200 MiB	1.200 MiB	1.702 MiB	12.650 KiB
1.300 MiB	1.300 MiB	1.961 MiB	13.969 KiB
1.400 MiB	1.400 MiB	1.943 MiB	14.094 KiB
1.500 MiB	1.500 MiB	2.178 MiB	16.195 KiB
1.600 MiB	1.600 MiB	2.280 MiB	17.204 KiB
1.700 MiB	1.700 MiB	2.407 MiB	17.067 KiB
1.800 MiB	1.800 MiB	2.610 MiB	19.253 KiB
1.900 MiB	1.900 MiB	2.672 MiB	18.957 KiB

XtremeDELTA algorithm:

FILE SIZE(s) in MiB*		MEMORY USED (PEAK MEMORY)	XtremeDELTA File Size (KiB)	COMMENTS
Source File	Target File
100 MiB	100 MiB	346 MiB	0.223 KiB
200 MiB	200 MiB	608 MiB	0.223 KiB
300 MiB	300 MiB	1.129 MiB	0.223 KiB
400 MiB	400 MiB	1.102 MiB	0.223 KiB	Slightly more redundant file.
500 MiB	500 MiB	1.656 MiB	0.223 KiB
600 MiB	600 MiB	1.917 MiB	0.223 KiB
700 MiB	700 MiB	2.167 MiB	0.223 KiB
800 MiB	800 MiB	2.691 MiB	0.223 KiB
900 MiB	900 MiB	2.675 MiB	0.223 KiB
1.000 MiB	1.000 MiB	2.911 MiB	0.225 KiB
1.100 MiB	1.100 MiB	3.165 MiB	0.225 KiB
1.200 MiB	1.200 MiB	3.418 MiB	0.225 KiB
1.300 MiB	1.300 MiB	3.849 MiB	0.225 KiB
1.400 MiB	1.400 MiB	3.923 MiB	0.225 KiB
1.500 MiB	1.500 MiB	4.333 MiB	0.225 KiB
1.600 MiB	1.600 MiB	4.578 MiB	0.225 KiB
1.700 MiB	1.700 MiB	4.860 MiB	0.225 KiB
1.800 MiB	1.800 MiB	5.292 MiB	0.225 KiB
1.900 MiB	1.900 MiB	5.357 MiB	0.225 KiB

Legend:

( *) MiB, KiB - See glossary.

( **) PEAK Memory - See glossary.

(***) Redundancy - See glossary.

See test machine configuration here.