bts consumes a huge amount of memory when fetching issues

[whirm]

I had to stop it when emacs was consuming 11GB of RAM.

I mem profiled a short run of bts:summary-reload-all and this is what I got:

- timer-event-handler                                  418,239,842,941  99%
 - byte-code                                           418,239,826,301  99%
  - apply                                              418,239,826,301  99%
   - #<lambda 0x38837170c73cab4a>                      418,040,710,147  99%
    - bts::summary-add-entry                           418,040,710,147  99%
     - byte-code                                       418,040,710,147  99%
      - bts::summary-make-tabulated-entry              418,040,495,149  99%
       - truncate-string-to-width                      404,251,759,475  96%
        - byte-code                                    404,251,759,475  96%
         - yaxception-build-stacktrace                 404,251,759,475  96%
          - byte-code                                  404,251,757,363  96%
           - string-match                              404,247,423,419  96%
            - yaxception-build-stacktrace              404,247,423,419  96%
             - byte-code                               404,247,421,307  96%
              - string-match                           404,241,113,704  96%
               - yaxception-build-stacktrace           404,241,113,704  96%
                - byte-code                            404,241,111,592  96%
                 - string-match                        404,232,399,501  96%
                  - yaxception-build-stacktrace        404,232,399,501  96%
                   - byte-code                         404,232,397,389  96%
                    - string-match                     404,220,681,679  96%
                     - yaxception-build-stacktrace     404,220,681,679  96%
                      - byte-code                      404,220,679,567  96%
                       - string-match                  335,761,100,799  80%
                        - yaxception-build-stacktrace  335,761,100,799  80%
                         - byte-code                   335,761,100,799  80%
                          - string-match               329,872,998,422  78%
                           - yaxception-build-stacktrace329,872,998,422  78%
                            - byte-code                329,872,965,026  78%
                               backtrace               14,521,110,667   3%
                               generate-new-buffer             48,363   0%
                               thing-at-point                  18,923   0%
                          - replace-regexp-in-string    5,887,998,482   1%
                             apply                      5,887,958,544   1%
                          + backtrace                         101,783   0%
                          + thing-at-point                      2,112   0%
                       - backtrace                     68,444,184,870  16%
                        - yaxception-build-stacktrace  68,444,174,470  16%
                         - byte-code                   68,444,174,470  16%
                          - backtrace                  67,703,830,719  16%
                           - yaxception-build-stacktrace67,703,830,719  16%
                            + byte-code                67,703,826,214  16%
                            generate-new-buffer                 1,029   0%
                         generate-new-buffer                    4,135   0%
                    + replace-regexp-in-string                239,400   0%
                      backtrace                                 8,320   0%
                      generate-new-buffer                       3,087   0%
                 + replace-regexp-in-string                   212,256   0%
                   backtrace                                    8,320   0%
                   generate-new-buffer                          3,087   0%
              + replace-regexp-in-string                      199,624   0%
                backtrace                                       6,240   0%
                generate-new-buffer                             3,087   0%
           + replace-regexp-in-string                         211,208   0%
             match-string-no-properties                        18,384   0%
             backtrace                                          6,240   0%
             generate-new-buffer                                4,135   0%
           + thing-at-point                                     1,056   0%
       + replace-regexp-in-string                              25,946   0%
       + bts-github::summary-label-decorate                     4,160   0%
      + bts::summary-regist-entries                           176,488   0%
      + apply                                                  24,990   0%
   + bts-github:fetch-issue                               192,797,758   0%
   + auto-revert-buffers                                    6,304,876   0%
   + bts::ticket-fetch-sentinel                                10,400   0%
     jit-lock-context-fontify                                   1,040   0%
   + blink-cursor-start                                         1,040   0%
 + timer-inc-time                                               9,360   0%
 + timer-activate                                               3,120   0%
 + timer-activate-when-idle                                     1,040   0%
   timer-until                                                  1,040   0%
+ command-execute                                          51,411,459   0%
+ redisplay_internal (C function)                              83,464   0%
+ winner-save-old-configurations                                7,280   0%
+ global-git-gutter-mode-check-buffers                          1,040   0%
+ global-company-mode-check-buffers                             1,040   0%
+ blink-cursor-end                                              1,040   0%
+ yas--post-command-handler                                       800   0%
  sml/generate-position-help                                       32   0%
  ...                                                               0   0%

How to reproduce:
Configure a project/query to fetch all open issues from https://github.com/Tribler
M-x bts:summary-open RET M-x bts-summary-reload-all RET

Thanks for this project! I needed something like this! :)

Let me know if you need more info.

[aki2o]

Hi, @whirm
Thanks for your inform. Then, give me a time...