'''June 20, 2002''' - obsolete and confusing info from this page has been removed -[jcw]

Performance of wiki markup rendering used to be pretty bad (see comment further down).  The [kiwi] project includes a new renderer which is probably 10x faster (but only HTML so far, no Tk version).

It's all largely irrelevant for CGI use, now that wiki uses a static page cache.  Things are more than fast enough now.

Having just converted to new hyperlink tracking code in wikit, I decided to collect a bit of stats.  First the output:
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 3551 pages
 1176 pages have never been filled in
 497 archive entries
 11320 hyperlinks
 2025 pages have hyperlinks to others
 2129 pages are being hyperlinked from others
 273 leaves (pages not referencing any others wiki pages):
12  33  45  80  87  94  98  110  111  112  113  114  115  116  117  118  119  120  122  124  126  130  133  134  135  142  143  148  157  158  160  169  171  205  225  287  288  289  292  293  295  306  307  310  311  315  316  318  319  326  330  331  352  368  370  372  373  374  377  381  408  416  422  424  426  429  431  433  474  475  476  558  568  570  574  575  587  589  615  616  629  636  644  651  670  673  675  678  679  680  681  684  687  710  716  730  762  767  785  790  809  811  813  816  832  842  857  858  863  865  890  891  896  905  928  939  946  950  965  1087  1095  1098  1135  1142  1144  1165  1172  1173  1174  1190  1192  1193  1201  1210  1219  1244  1274  1285  1289  1290  1301  1320  1342  1350  1357  1359  1366  1521  1524  1528  1540  1541  1543  1544  1545  1557  1564  1565  1566  1567  1610  1629  1634  1641  1649  1650  1654  1747  1761  1804  1825  1826  1828  1831  1833  1842  1861  1863  1864  1872  1885  1891  1895  1932  1937  2040  2059  2063  2111  2124  2125  2127  2128  2132  2133  2134  2152  2156  2168  2194  2209  2247  2270  2346  2360  2374  2385  2386  2387  2416  2458  2497  2515  2526  2539  2558  2606  2661  2701  2764  2815  2939  2940  2975  3001  3019  3033  3038  3043  3050  3064  3066  3075  3082  3083  3102  3104  3115  3144  3182  3185  3207  3214  3282  3288  3289  3298  3317  3323  3340  3373  3381  3400  3405  3406  3435  3438  3444  3450  3458  3461  3470  3472  3473  3475  3476  3482  3513  3518  3538  3543  3545  3547
 236 orphans (pages not referenced from any others):
22  23  47  65  66  151  229  230  231  232  233  234  235  236  237  238  239  240  241  242  243  244  245  246  247  248  249  250  251  252  253  254  255  256  257  258  259  260  261  262  263  264  265  266  267  268  269  328  329  384  385  386  387  388  389  390  394  412  415  419  438  439  449  452  455  456  461  464  465  466  467  499  520  521  522  536  538  545  554  566  572  577  578  579  580  581  582  597  598  599  601  605  641  655  658  664  665  695  700  705  711  725  726  742  745  746  753  754  789  798  802  806  807  810  817  818  845  854  862  868  892  893  914  925  1005  1076  1127  1131  1138  1139  1160  1164  1169  1170  1209  1216  1221  1226  1231  1235  1238  1250  1257  1282  1284  1311  1319  1326  1338  1341  1349  1352  1370  1371  1376  1377  1382  1523  1617  1676  1706  1732  1768  1774  1795  1814  1839  1843  1858  1876  1894  1902  1904  1907  1920  1928  1929  1930  2121  2163  2167  2182  2184  2219  2225  2388  2405  2410  2412  2438  2454  2474  2481  2505  2521  2522  2534  2568  2625  2644  2654  2700  2733  2742  2800  2834  2840  2847  2861  2873  2880  2892  2893  2934  2938  2966  2971  2972  2974  2998  3017  3029  3045  3046  3049  3059  3168  3199  3230  3247  3248  3335  3434  3436  3437  3442
----
''The code that generated the above:''
----
 #! /usr/bin/env tclkit

 mk::file open db wikit.tkd -readonly

 puts "[mk::view size db.pages] pages"
 puts "[llength [mk::select db.pages date 0]] pages have never been filled in"
 puts "[mk::view size db.archive] archive entries"
 puts "[mk::view size db.refs] hyperlinks"

 mk::loop c db.refs {
   lassign [mk::get $c from to] f t
   if {$f < 10 || $t < 10 || [mk::get db.pages!$t date] == 0} continue
   if {![info exists froms($f)]} {
     set froms($f) 0
   }
   incr froms($f)
   if {![info exists tos($t)]} {
     set tos($t) 0
   }
   incr tos($t)
 }

 puts "[array size froms] pages have hyperlinks to others"
 puts "[array size tos] pages are being hyperlinked from others"

 set leaves {}
 foreach {k v} [array get tos] {
   if {![info exists froms($k)]} {
     lappend leaves $k
   }
 }

 puts "[llength $leaves] leaves (pages not referencing any others wiki pages):"
 puts [join [lsort -integer $leaves] "\t "]

 set orphans {}
 mk::loop c db.pages 10 {
   set i [mk::cursor pos c]
   if {[mk::get $c date] != 0 && ![info exists tos($i)]} {
     lappend orphans $i
   }
 }

 puts "[llength $orphans] orphans (pages not referenced from any others):"
 puts [join [lsort -integer $orphans] "\t "]
----
06oct02 [jcw] - Wikit has been modified to enhance its performance when rendering pages with lots of embedded page references, including pages such as [Recent Changes].  This has a more-than-order-of-magnitude effect.  This is especially noticeable in local mode, but CGI also benefits.
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[Category Wikit]
-
[Category Tcler's Wiki]