Performance tuning

[papousek]

Here is TOP 100 most used urls in Anatomy (a few last days):

 count  median  percentile_95                                                url
  2826  1.9705        5.28400                                  /models/practice/
   962  0.8455        7.08990                               /models/to_practice/
   867  0.8010        4.03710                                /models/user_stats/
   777  0.5210        2.48320                                                  /
   669  0.6360        1.82720                                    /models/answer/
   657  0.4350        6.32780                               /flashcards/contexts
   537  0.9610       18.24680     /static/dist/js/bower-libs.min.16f3bd743689.js
   426  0.2675        3.90225                        /models/to_practice_counts/
   400  0.2325        1.04410                                     /user/session/
   338  0.6285       12.96920                       /static/dist/thumbnails.json
   278  0.3355        5.68450        /static/dist/js/anatomy.min.3534fc3386e8.js
   255  0.5380       11.42250                                   /savescreenshot/
   253  0.3460        1.37460                                         /overview/
   252  0.2025        3.22000       /static/dist/css/bower-libs.53b4fc7c6144.css
   244  0.2030        3.59915  /static/dist/js/unminifiable-libs.643ac92c1ae5.js
   241  0.2160        4.34900                /static/font/arista2.0-webfont.woff
   231  0.4350       21.91600        /static/dist/js/anatomy.min.10eca56de910.js
   228  0.2185        5.41020           /static/img/ajax-loader.a2ef6c1d958a.gif
   218  0.2355        2.04600                            /static/img/book-cs.png
   191  0.2000        6.93000       /static/img/icons/android-chrome-192x192.png
   191  0.2010        2.01100                      /static/img/view-image-cs.png
   185  0.5550        7.80560                            /static/img/book-en.png
   183  0.6990        8.67690                      /static/img/view-image-en.png
   180  0.2150        1.90875                          /static/img/select-cs.png
   180  0.6965       10.72685                          /static/img/select-en.png
   173  0.1570        1.75700                        /static/img/practice-cs.png
   166  0.5230       10.35125     /static/dist/js/bower-libs.min.647b9deda099.js
   164  0.7910        8.69885                        /static/img/practice-en.png
   161  0.1740       12.17800                        /static/img/ajax-loader.gif
   157  0.4080        8.07500          /static/dist/css/all.min.387eda8597e3.css
   154  0.3585        7.57095        /static/dist/js/anatomy.min.9da351ea75fc.js
   142  0.1455        5.11025                 /static/img/24_circle_sm_icons.png
   137  0.1020        0.93260                       /static/img/knowledge-cs.png
   137  0.3620        5.11140                       /static/img/knowledge-en.png
   111  0.0620        0.42400                              /flashcards/categorys
   109  0.5240       18.37180                                       /common/log/
   104  0.1135        1.26925  /static/dist/js/unminifiable-libs.64f42482690e.js
    91  0.1980        4.87000        /static/dist/js/anatomy.min.0adbd690bcf2.js
    80  0.0425        0.13610                                       /favicon.ico
    73  0.1000        1.23300        /media/tile-thumbs/nervus-trigeminussvg.png
    70  0.2750        2.55645     /static/img/icons/apple-touch-icon-180x180.png
    68  0.1235        4.32310   /static/font/arista2.0-webfont.ca0d5ef97563.woff
    65  0.1360        2.88860    /static/img/24_circle_sm_icons.b4aa8cdb289f.png
    62  0.1520        4.44560     /media/tile-thumbs/musculus-digastricussvg.png
    62  0.1030        0.88780     /media/tile-thumbs/hluboke-zadove-svalysvg.png
    56  0.2265        1.90600                /static/img/thumb/view-image-cs.png
    56  0.0905        0.26625                           /flashcards/context/2127
    55  0.0810        4.20450  /media/tile-thumbs/nodi-lymphoidei-axillaressv...
    55  0.1470        1.91480      /media/tile-thumbs/hluboke-krcni-svalysvg.png
    53  0.0400        0.07000                                    /common/config/
    53  0.1120        2.86340  /media/tile-thumbs/basis-cranii-externa-vnejsi...
    52  0.1980        1.98290                    /static/img/thumb/select-cs.png
    52  0.1210        2.27175  /media/tile-thumbs/spatium-retrostyloideumsvg.png
    52  0.0475        3.89650         /media/tile-thumbs/fossa-temporalissvg.png
    51  0.0710        2.94100  /media/tile-thumbs/articulationes-manus-leva-a...
    51  0.1240        5.11300        /media/tile-thumbs/septum-styloideumsvg.png
    51  0.1040        3.86600     /media/tile-thumbs/basis-cranii-internasvg.png
    50  0.1620        2.75030                                 /static/img/Hb.png
    50  0.1575        1.35060                  /static/img/thumb/practice-cs.png
    50  0.0940        6.31335               /media/tile-thumbs/svaly-krkusvg.png
    49  0.2020        1.10680                            /flashcards/context/466
    49  0.1220        1.44220  /media/tile-thumbs/os-temporale-pohled-na-basi...
    48  0.1030       12.57870     /media/tile-thumbs/lebka-pohled-zepredusvg.png
    48  0.0690        0.27815                            /flashcards/context/370
    47  0.1350        2.73220          /media/tile-thumbs/nervus-facialissvg.png
    46  0.1255        1.36375  /media/tile-thumbs/transverzalni-rez-v-oblasti...
    46  0.0475       11.32775  /media/tile-thumbs/kosti-leve-a-prave-ruky-poh...
    45  0.0690        1.83260  /media/tile-thumbs/leva-a-prava-ruka-pohled-ze...
    45  0.1730        1.88940                            /flashcards/context/492
    45  0.0710        1.19800             /media/tile-thumbs/5-svaly-rukysvg.png
    45  0.1130        1.53240  /media/tile-thumbs/svaly-hrudniku-pohled-zepre...
    45  0.1550        4.99140                                 /static/img/Hf.png
    44  0.0345        0.19005                                     /common/config
    44  0.0455        0.12590                               /subscription/plans/
    44  0.0730        0.78760  /media/tile-thumbs/frontalni-rez-pravou-nohou-...
    43  0.0610        0.73780  /media/tile-thumbs/foramen-omotricipitale-et-h...
    43  0.0830        3.62690  /media/tile-thumbs/ossa-tarsi-leva-a-prava-noh...
    42  0.0975        4.28430  /media/tile-thumbs/mandibula-pohled-sikmo-zlev...
    42  0.3735        0.51295            /static/img/thumb/practice-heart-cs.png
    42  0.0600        0.59145                                 /static/img/08.png
    41  0.0740        0.33800                            /flashcards/context/588
    41  0.1220        5.35000  /media/tile-thumbs/odstupy-hlavovych-nervusvg.png
    40  0.2215        2.22015                            /flashcards/context/692
    40  0.3550        0.98845            /admin/proso_subscription/subscription/
    40  0.1465        1.94635  /media/tile-thumbs/pohled-zleva-na-sagitalni-r...
    40  0.2260        0.69970                           /flashcards/context/1971
    40  0.0805        0.17920                            /flashcards/context/640
    40  0.1470        1.64275    /media/tile-thumbs/spatium-prestyloideumsvg.png
    39  0.0370        0.50130                                        /robots.txt
    39  0.1180        2.78180    /media/tile-thumbs/fossa-infratemporalissvg.png
    39  0.0730        0.17470                            /flashcards/context/648
    38  0.1500        4.73145                                 /static/img/UE.png
    38  0.0525        0.07230                             /common/custom_config/
    38  0.0820        0.46425                 /static/img/thumb/knowledge-cs.png
    38  0.1005        1.32710  /media/tile-thumbs/polohy-a-smery-na-koncetina...
    37  0.3910        2.20840                                /relationsoverview/
    37  0.0970        0.29580                            /flashcards/context/592
    37  0.2060        6.27660                            /flashcards/context/642
    37  0.0830        0.20620                            /flashcards/context/480
    37  0.1780        1.10000          /media/tile-thumbs/mimicke-svaly-2svg.png

[papousek]

TIMEIT (seconds)

  count                                                                                                    key  median  percentile_95
 242260                 proso_models/json_enrich.py:12 -> 'proso_models.models.ItemManager.translate_item_ids'    0.01           0.02
 117623            models/item_selection.py:41 -> 'proso.models.prediction.PredictiveModel.predict_more_items'    0.60           2.61
 117355                  proso_flashcards/json_enrich.py:54 -> '...ContextOptionSet.get_option_for_flashcards'    0.06           0.16
  80226             proso_flashcards/json_enrich.py:22 -> 'proso_models.models.ItemManager.translate_item_ids'    0.01           0.02
   9131             proso_models/models.py:651 -> 'proso.models.prediction.PredictiveModel.predict_more_items'    1.02           3.19
   7780               django/cache.py:64 -> 'proso_models.models.ItemManager.filter_all_reachable_leaves_many'    0.01           0.09
   6394         proso_models/json_enrich.py:24 -> 'proso.models.prediction.PredictiveModel.predict_more_items'    0.15           0.57
   6394         proso_models/json_enrich.py:49 -> 'proso.models.prediction.PredictiveModel.predict_more_items'    0.21           0.91
   2678  proso_flashcards/flashcard_construction.py:67 -> 'proso_models.models.ItemManager.translate_item_ids'    0.06           0.29