This is an excellent table of data. I'm curious what functions you ran to obtain it.
Paul Tretter ----- Original Message ----- From: "Ashley TrÃter" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, January 03, 2004 12:37 AM Subject: [REBOL] Re: [series] Series performance was Re: MySQL-protocol.r > > Hi Tim, > > > But I believe that lists and blocks are implemented > > differently internally, but I'm ignorant as to how. > > any comments on this? > > Conceptually, a block is just a collection of values where the sequence is > directly known (ie. like an "array" REBOL knows where the Nth value is). A > list on the other hand ensures that each value knows where the previous > and next values are (finding the Nth value in this case involves "walking" > the list one value at a time). > > The following test attempts to highlight the strength and weakness of each > series! type (keep in mind that the memory cost of list! / hash! is higher > than block!). > > > Test Data > One million numbers from one through to one million in a 6.75MB file. > > Test Environment > Intel Pentium 3.0 GHz with 1GB of RAM. > > Operations Per Second > > Operation Block! List! Hash! > ================== ========= ========= ========= > first / last 1,961,614 2,038,423 1,936,023 > pick / poke / at 1,844,334 504 1,846,456 > find / select (1) 1,546,259 1,538,385 1,399,606 > find / select (2) 52 51 1,402,559 > foreach 13 20 19 > insert 81 1,087,684 19 > insert tail 1,032,956 861,769 723,152 > change 1,572,834 1,569,881 1,307,086 > head / tail / next 1,883,858 1,916,338 1,816,748 > remove 80 1,493,110 54 > remove tail 1,127,093 1,187,992 1,115,157 > > (1) First value in series > (2) Last value in series > > > Regards, > > Ashley > -- > To unsubscribe from this list, just send an email to > [EMAIL PROTECTED] with unsubscribe as the subject. > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.553 / Virus Database: 345 - Release Date: 12/18/2003 -- To unsubscribe from this list, just send an email to [EMAIL PROTECTED] with unsubscribe as the subject.
