Search View: Performance issues on remove and sort by mehmet-karaman · Pull Request #3733 · eclipse-platform/eclipse.platform.ui

mehmet-karaman · 2026-02-17T14:17:58Z

Implemented a batch removal of search matches
Search matches are removed from their parent, instead of one by one
which causes performance issues
It's also fixing the problem, that all elements are removed instead
only the visible elements (while all others are filtered by the limit
number)
Replaces the
ConcurrentHashMap.newKeySet() with the ConcurrentSkipListSet with the
comparator and makes the additional sorting obsolete.

iloveeclipse · 2026-02-17T14:21:47Z

@mehmet-karaman : please first create a ticket and explain the problem.
Note: you seem to use wrong git author mail, please use same which you've used in ECA process.

github-actions · 2026-02-17T15:34:19Z

Test Results

2 982 files - 42 2 982 suites - 42 2h 9m 32s ⏱️ - 7m 12s
8 186 tests - 48 7 940 ✅ - 46 246 💤 - 2 0 ❌ ±0
23 382 runs - 144 22 598 ✅ - 137 784 💤 - 7 0 ❌ ±0

Results for commit 47c1437. ± Comparison against base commit 89a19bf.

This pull request removes 48 tests.

AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testAddAnnotation
AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testBogusAnnotation
AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testRemoveQuery
AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testReplaceQuery
AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testSwitchQuery
AllSearchTests AllFileSearchTests FileSearchTests ‑ testBinaryContentTypeWithDescriberParallel
AllSearchTests AllFileSearchTests FileSearchTests ‑ testBinaryContentTypeWithDescriberSerial
AllSearchTests AllFileSearchTests FileSearchTests ‑ testDerivedFilesParallel
AllSearchTests AllFileSearchTests FileSearchTests ‑ testDerivedFilesSerial
AllSearchTests AllFileSearchTests FileSearchTests ‑ testFileNamePatternsParallel
…

♻️ This comment has been updated with latest results.

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchViewPage.java

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

Copilot

Pull request overview

This PR addresses Search View performance and correctness when removing matches, by enabling batch removal at the “enclosing element” (e.g., file/resource) level and ensuring removals aren’t limited to only currently visible (element-limited) results.

Changes:

Updated AbstractTextSearchViewPage.internalRemoveSelected() to batch-remove matches by selected IFile / IContainer resources before falling back to per-match removal for non-resource selections.
Added AbstractTextSearchResult.removeElements(...) to remove all matches for selected elements via a single map-entry removal per element.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
`bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchViewPage.java`	Adds resource-aware pre-processing in “Remove Selected Matches” to remove matches by file/container in a batch.
`bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java`	Introduces an element-based batch removal method to efficiently drop all matches for selected elements.

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bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchViewPage.java

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

Copilot

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

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bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchViewPage.java

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

Copilot

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

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bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchViewPage.java

Copilot

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 6 comments.

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bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchViewPage.java

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchViewPage.java

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

tests/org.eclipse.search.tests/src/org/eclipse/search/tests/TextSearchResultTest.java

iloveeclipse · 2026-02-23T07:49:38Z

@mehmet-karaman : could you please adapt code as proposed and change the test to not use reflection?

iloveeclipse · 2026-02-23T09:53:46Z

@mehmet-karaman : please could you mark all comments on PR as resolved if they are already addressed by the latest change, and those that are unresolved give a comment what is missing?

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

mehmet-karaman · 2026-02-23T09:58:25Z

@mehmet-karaman : please could you mark all comments on PR as resolved if they are already addressed by the latest change, and those that are unresolved give a comment what is missing?

I am on it.. Just rechecking all changes ..

iloveeclipse · 2026-02-23T10:04:00Z

I am on it.. Just rechecking all changes ..

You are missing changes from my two commits.

mehmet-karaman · 2026-02-23T10:06:11Z

I am on it.. Just rechecking all changes ..

You are missing changes from my two commits.

Going to check if these changes are contained.
40ee202
7d37158

mehmet-karaman · 2026-02-23T11:29:18Z

@iloveeclipse I've squashed your two commits on my last commit..

iloveeclipse · 2026-02-23T11:44:30Z

@iloveeclipse I've squashed your two commits on my last commit..

There is compile error now

mehmet-karaman · 2026-02-23T12:11:26Z

Forgot one file in stage.. Now its done..

iloveeclipse · 2026-02-23T13:50:06Z

@mehmet-karaman : please check failing tests: https://github.com/eclipse-platform/eclipse.platform.ui/runs/64528670814

mehmet-karaman · 2026-02-23T15:42:17Z

Seems that the default is table view and not tree.. I've added a layout call.. Locally it worked.

mehmet-karaman · 2026-02-23T16:11:16Z

I am going to try to reproduce the failure locally..

iloveeclipse · 2026-02-23T16:21:07Z

Seems that the default is table view and not tree.

I assume this be forced by using right preference for the search, but I haven't checked what is the probllem with the test. Note: you must "process UI events loop" in order to see fully updated search view after some search job is executed, this could be the problem you observe.

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Pull request overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

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Copilot · 2026-02-23T20:15:21Z

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

+		int diff = match2.getOffset() - match1.getOffset();
+		if (diff != 0) {
+			return diff;
+		}
+		diff = match2.getLength() - match1.getLength();
+		if (diff != 0) {
+			return diff;
+		}
+		diff = System.identityHashCode(match2) - System.identityHashCode(match1);


The comparator for ConcurrentSkipListSet uses integer subtraction (offset/length/identityHashCode). These subtractions can overflow and violate the comparator contract, which can break ordering/lookup behavior in a skip-list. Prefer Integer.compare(...) for offset/length/hash comparisons to guarantee correct ordering.

Suggested change

int diff = match2.getOffset() - match1.getOffset();

if (diff != 0) {

return diff;

}

diff = match2.getLength() - match1.getLength();

if (diff != 0) {

return diff;

}

diff = System.identityHashCode(match2) - System.identityHashCode(match1);

int diff = Integer.compare(match2.getOffset(), match1.getOffset());

if (diff != 0) {

return diff;

}

diff = Integer.compare(match2.getLength(), match1.getLength());

if (diff != 0) {

return diff;

}

diff = Integer.compare(System.identityHashCode(match2), System.identityHashCode(match1));

Copilot · 2026-02-23T20:15:22Z

bundles/org.eclipse.search/newsearch/org/eclipse/search/ui/text/AbstractTextSearchResult.java

+			}
+		}
+		if (!removedMatches.isEmpty()) {
+			removedMatches.forEach(collisionOrder::remove);


removeElements(...) calls collisionOrder.remove(...) for every removed match, even though collisionOrder will almost always be empty (identityHash collisions are very rare). For large batch removals this adds unnecessary per-match overhead. Consider guarding the loop with a single if (!collisionOrder.isEmpty()) check (or otherwise avoiding per-match removals when no collisions were recorded).

Suggested change

removedMatches.forEach(collisionOrder::remove);

if (!collisionOrder.isEmpty()) {

removedMatches.forEach(collisionOrder::remove);

}

tests/org.eclipse.search.tests/src/org/eclipse/search/tests/TextSearchResultTest.java

mehmet-karaman · 2026-02-23T22:15:57Z

Seems that the default is table view and not tree.

I assume this be forced by using right preference for the search, but I haven't checked what is the probllem with the test. Note: you must "process UI events loop" in order to see fully updated search view after some search job is executed, this could be the problem you observe.

Your guess was correct, It was failing due to pending UI events.. The tests are running now, but another test is failing. Could be that I have to set the default value back in tearDown.. This is also pushed now.

- Implemented a batch removal of search matches - Search matches are removed from their parent, instead of one by one which causes performance issues - It's also fixing the problem, that all elements are removed instead only the visible elements (while all others are filtered by the limit number) - Replaces the ConcurrentHashMap.newKeySet() with the ConcurrentSkipListSet with the comparator and makes the additional sorting obsolete. - After this change, avoid using `size()` on values, because it is not more constant time operation, see `ConcurrentSkipListSet` javadoc. - Also comparator must be changed to consider different Match elements with same size and offsets in the set - otherwise the `ConcurrentSkipListSet` would lost them. - Added `AbstractTextSearchResult.hasMatches(Object element)` API for cases where match count not needed. - If possible, calls to `size()` changed to `isEmpty()` or omitted. - Implemented Tests Fixes eclipse-platform#3735 Co-authored-by: Andrey Loskutov <loskutov@gmx.de>

mehmet-karaman force-pushed the batch_remove_search_matches branch from 2a62c61 to 73cab0d Compare February 17, 2026 14:52

mehmet-karaman force-pushed the batch_remove_search_matches branch 4 times, most recently from dff7693 to 300ca6b Compare February 17, 2026 23:07

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mehmet-karaman force-pushed the batch_remove_search_matches branch from fe5e861 to 7f02394 Compare February 18, 2026 23:19

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fedejeanne mentioned this pull request Feb 19, 2026

Search view with millions of matches is freezing the UI #3735

Open

mehmet-karaman force-pushed the batch_remove_search_matches branch 2 times, most recently from 4cd364f to b53503b Compare February 19, 2026 11:20

mehmet-karaman changed the title ~~Search View: Batch removing of search matches~~ Search View: Performance issues on remove and sort Feb 19, 2026

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iloveeclipse force-pushed the batch_remove_search_matches branch from fc2f401 to 40ee202 Compare February 19, 2026 13:48

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iloveeclipse force-pushed the batch_remove_search_matches branch from 40ee202 to 7d37158 Compare February 19, 2026 15:13

mehmet-karaman force-pushed the batch_remove_search_matches branch from 7d37158 to d572e09 Compare February 20, 2026 11:22

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mehmet-karaman force-pushed the batch_remove_search_matches branch 2 times, most recently from 1aafde6 to b035e35 Compare February 23, 2026 09:53

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mehmet-karaman force-pushed the batch_remove_search_matches branch from b035e35 to 5ec98a5 Compare February 23, 2026 09:57

iloveeclipse force-pushed the batch_remove_search_matches branch from 5ec98a5 to 7b15304 Compare February 23, 2026 10:17

mehmet-karaman force-pushed the batch_remove_search_matches branch from 7b15304 to d081dad Compare February 23, 2026 11:28

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mehmet-karaman force-pushed the batch_remove_search_matches branch from 3dc231e to 98df1af Compare February 23, 2026 15:40

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