----- Original Message ----- From: Brian J Mingus brian.mingus@Colorado.EDU Date: Tuesday, March 29, 2011 7:15 pm Subject: Re: [Wikitech-l] [Xmldatadumps-l] March 17 en wikipedia history bz2 files ready To: Wikimedia developers wikitech-l@lists.wikimedia.org Cc: Jamie Morken jmorken@shaw.ca, "Ariel T. Glenn" ariel@wikimedia.org, xmldatadumps-l@lists.wikimedia.org

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According to this data the 7z dump for enwp will reach 1 terabyte on Jan 2, 2145.

=)

Hi,

I made a graph for the uncompressed XML file size for the enwiki pages-meta-history files over time, I thought that these files would be growing exponentially but they appear to grow linear.  For comparison in 2145 the raw XML should be about 178 TB I think, so the 7z files are growing linearly about 180x faster than the raw XML.

"http://nekrom.com/wikipedia/enwiki%20history%20uncompressed%20XML%20dump%20f..."

(data below)

cheers, Jamie

enwiki-20060816-pages-meta-history.xml 782741875000 (728.99 GB) enwiki-20070402-pages-meta-history.xml 1763048493749 (1641.97 GB) (229 days since previous dump) enwiki-20080103-pages-meta-history.xml 2807444044080 (2614.64 GB) (276 days since previous dump) enwiki-20100130-pages-meta-history.xml 5873134833455 (5469.78 GB) (758 days since previous dump) enwiki-20110115-pages-meta-history[1-15].xml 7218617857754 (6722.86 GB) (350 days since previous dump)

enwiki-20110115-pages-meta-history1.xml 1 080 719 385 129 enwiki-20110115-pages-meta-history2.xml 677 956 948 289 enwiki-20110115-pages-meta-history3.xml 550 889 319 423 enwiki-20110115-pages-meta-history4.xml 447 001 611 247 enwiki-20110115-pages-meta-history5.xml 453 700 983 270 enwiki-20110115-pages-meta-history6.xml 540 208 590 115 enwiki-20110115-pages-meta-history7.xml 458 817 000 243 enwiki-20110115-pages-meta-history8.xml 649 710 293 818 enwiki-20110115-pages-meta-history9.xml 471 183 250 318 enwiki-20110115-pages-meta-history10.xml 406 115 459 739 enwiki-20110115-pages-meta-history11.xml 342 840 308 580 enwiki-20110115-pages-meta-history12.xml 310 507 626 798 enwiki-20110115-pages-meta-history13.xml 362 264 384 002 enwiki-20110115-pages-meta-history14.xml 269 988 897 698 enwiki-20110115-pages-meta-history15.xml 196 713 799 085

-- Brian Mingus Graduate student Computational Cognitive Neuroscience Lab University of Colorado at Boulder