Commit Graph

5 Commits

Author SHA1 Message Date
Benjamin Otte
703f8b8136 timsort: Add progress estimation 2020-07-22 14:30:49 +02:00
Benjamin Otte
26696a741e timsort: Add change tracking to gtk_tim_sort_step() 2020-07-22 14:04:40 +02:00
Benjamin Otte
a209e54b8f timsort: Add gtk_tim_sort_set_max_merge_size()
Makes the SOrtListModel responsive when incrementally sorting.

By making it configurable we can avoid losting performance in the
non-incremental case.
2020-07-22 14:04:40 +02:00
Benjamin Otte
cbad8ec2e4 timsort: Add gtk_tim_sort_set_runs()
... and use it in the SortListModel

Setting runs allows declaring already sorted regions so the sort does
not attempt to sort them again.

This massively speeds up partial inserts where we can reuse the sorted
model as a run and only resort the newly inserted parts.

Benchmarks:

    appending half the model
                    qsort  timsort
    128,000 items    94ms     69ms
    256,000 items   202ms    143ms
    512,000 items   488ms    328ms

    appending 1 item
                    qsort  timsort
      8,000 items   1.5ms    0.0ms
     16,000 items   3.1ms    0.0ms
              ...
    512,000 items     ---    1.8ms
2020-07-22 14:04:40 +02:00
Benjamin Otte
97c5cb3514 Add a timsort() implementation 2020-07-22 14:04:40 +02:00