JkSelf commented on code in PR #11927:
URL: https://github.com/apache/gluten/pull/11927#discussion_r3078441908
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cpp/velox/jni/VeloxJniWrapper.cc:
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@@ -1053,23 +1119,58 @@ JNIEXPORT jlong JNICALL
Java_org_apache_gluten_vectorized_HashJoinBuilder_native
// Wait for all tasks to complete
folly::collectAll(futures).wait();
+ auto buildEnd = std::chrono::high_resolution_clock::now();
+ auto buildMs = std::chrono::duration_cast<std::chrono::milliseconds>(
+ buildEnd - buildStart).count();
+ std::cout << "[HashBuild] Parallel build phase completed in " << buildMs <<
"ms" << std::endl;
+
+ auto mergeStart = std::chrono::high_resolution_clock::now();
+
auto mainTable = std::move(otherTables[0]);
std::vector<std::unique_ptr<facebook::velox::exec::BaseHashTable>> tables;
for (int i = 1; i < numThreads; ++i) {
tables.push_back(std::move(otherTables[i]));
}
+ uint64_t totalLocalRows = mainTable->rows()->numRows();
+ for (const auto& table : tables) {
+ totalLocalRows += table->rows()->numRows();
+ }
// TODO: Get accurate signal if parallel join build is going to be applied
// from hash table. Currently there is still a chance inside hash table that
// it might decide it is not going to trigger parallel join build.
const bool allowParallelJoinBuild = !tables.empty();
+ auto* executor1 = allowParallelJoinBuild ? VeloxBackend::get()->executor() :
nullptr;
+
+ std::cout << "[HashBuild] Starting merge phase, parallel=" <<
allowParallelJoinBuild << std::endl;
Review Comment:
Removed the log info.
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