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| author | Noel Grandin <noel.grandin@collabora.co.uk> | 2020-06-23 12:09:45 +0200 |
|---|---|---|
| committer | Noel Grandin <noel.grandin@collabora.co.uk> | 2020-06-25 15:56:43 +0200 |
| commit | 150f5cbe108793e427d8106d8cfa60dd6c5c5cb4 (patch) | |
| tree | b9891693d0d4e30cdc3ec3f07f495361d4f0b83b | |
| parent | tdf#133859 Wizard service: disable 'Next' button if path has only base item (diff) | |
| download | core-150f5cbe108793e427d8106d8cfa60dd6c5c5cb4.tar.gz core-150f5cbe108793e427d8106d8cfa60dd6c5c5cb4.zip | |
tdf#133699 Slow sorting of a column
reserve inside a loop is a pessimization, since it breaks the
logarithmic resizing of the std::vector data area.
Also use the std::vector::insert method, instead of std::copy, since
the insert method will perform less resizing operations.
On my machine, this takes the sort operation from 25s to less than 1s.
Change-Id: I30b99d42c56abc5a4ad5c133c7579fac3952173c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/96929
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
(cherry picked from commit 97965876459d8cfda0b653551708eb14de36e632)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/96885
(cherry picked from commit 0638adcb101d870b169a34d980d41ef4fc742a94)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/96996
| -rw-r--r-- | sc/source/core/data/column4.cxx | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sc/source/core/data/column4.cxx b/sc/source/core/data/column4.cxx index 329fd93eecdb..9cf56031d101 100644 --- a/sc/source/core/data/column4.cxx +++ b/sc/source/core/data/column4.cxx @@ -1220,8 +1220,7 @@ public: void operator() ( size_t /*nRow*/, SvtBroadcaster* p ) { SvtBroadcaster::ListenersType& rLis = p->GetAllListeners(); - mrListeners.reserve(mrListeners.size() + rLis.size()); - std::copy(rLis.begin(), rLis.end(), std::back_inserter(mrListeners)); + mrListeners.insert(mrListeners.end(), rLis.begin(), rLis.end()); } }; |