tag:blogger.com,1999:blog-4172950626830217643.post1273065229713811879..comments2024-03-28T03:20:54.405-04:00Comments on Better Embedded System SW: Cool Reliability Calculation ToolsPhil Koopmanhttp://www.blogger.com/profile/11849599272360094243noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-4172950626830217643.post-68895205713422939492013-07-04T04:57:34.364-04:002013-07-04T04:57:34.364-04:00Great information shared on software SolutionGreat information shared on <a href="http://www.randomsoftsolution.com/software.php" rel="nofollow">software Solution</a>Anonymoushttps://www.blogger.com/profile/17584217280251595675noreply@blogger.comtag:blogger.com,1999:blog-4172950626830217643.post-26301699225202276222012-10-14T13:58:56.410-04:002012-10-14T13:58:56.410-04:00Hi Professor Koopman,
thanks a lot for your two gu...Hi Professor Koopman,<br />thanks a lot for your two guides:<br />'CRC and Checksum Tutorial Slides'<br />'32-Bit Cyclic Redundancy Codes for Internet Applications'<br /><br />My approach is alchemical not scientifical.<br />As you can see I am into table-look-up hashes not checksums.<br />You are welcome to my 'fastest hash' page:<br />www.sanmayce.com/Fastest_Hash/index.html#KT_torture2<br /><br />I wrote a simple heavy test/torture in C juxtaposing two of your polynomials two of Castagnoli and me (not my, he-he) FNV1A_Yorikke.<br />Sadly my machine is a T7500 laptop and I lack computational power but up to last night the dump is as follows:<br /><br />hash table: 26bit<br />006:1<br />0,403 million KT | FNV1A_Yorikke | 0,001 x | 0,024 |x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|<br />0,403 million KT | CRC32K1 | 0,003 x | 0,023 |x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|<br />0,403 million KT | CRC32K2 | 0,003 x | 0,023 |x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|<br />0,403 million KT | CRC32C1 | 0,001 x | 0,026 |x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|<br />0,403 million KT | CRC32C2 | 0,001 x | 0,026 |x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|x|<br /><br />AFAIU your CRC32K2_8slice: 0x90022004 offers best distribution of all.<br /><br />It would be nice someone to torture further FNV1A_Yorikke and to share with us the dump.<br /><br />Best,<br />Georgi 'Sanmayce'Sanmaycehttps://www.blogger.com/profile/06841449393866504490noreply@blogger.comtag:blogger.com,1999:blog-4172950626830217643.post-71714586271698456872012-06-14T21:23:17.696-04:002012-06-14T21:23:17.696-04:00Thank you for the interesting link!
One word of a...Thank you for the interesting link!<br /><br />One word of advice for those using the tools to evaluate reliability of redundant systems: The results do not include potential for common cause failures at all, whereas in practice the common cause failures will have a very large impact on the overall reliability.Anonymousnoreply@blogger.com