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Reduce queue lengths by running index updates as iteration loop

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A single translation unit can create many index updates, so give
IndexMain_DoCreateIndexUpdate a chance to run a few times. This should also be
faster as it is more icache friendly.
This commit is contained in:
Jacob Dufault 2018-03-20 11:55:40 -07:00 committed by Fangrui Song
parent ef59e59f5b
commit 1fd0a1be94
1 changed files with 64 additions and 57 deletions
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19
src/import_pipeline.cc
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@ -452,9 +452,15 @@ bool IndexMain_DoParse(
bool IndexMain_DoCreateIndexUpdate(TimestampManager* timestamp_manager) { bool IndexMain_DoCreateIndexUpdate(TimestampManager* timestamp_manager) {
auto* queue = QueueManager::instance(); auto* queue = QueueManager::instance();
bool did_work = false;
IterationLoop loop;
while (loop.Next()) {
optional<Index_OnIdMapped> response = queue->on_id_mapped.TryPopFront(); optional<Index_OnIdMapped> response = queue->on_id_mapped.TryPopFront();
if (!response) if (!response)
return false; return did_work;
did_work = true;
Timer time; Timer time;
@ -485,8 +491,8 @@ bool IndexMain_DoCreateIndexUpdate(TimestampManager* timestamp_manager) {
response->current->file->last_modification_time); response->current->file->last_modification_time);
} }
#if false #if false
#define PRINT_SECTION(name) \ #define PRINT_SECTION(name) \
if (response->perf.name) { \ if (response->perf.name) { \
total += response->perf.name; \ total += response->perf.name; \
output << " " << #name << ": " << FormatMicroseconds(response->perf.name); \ output << " " << #name << ": " << FormatMicroseconds(response->perf.name); \
@ -503,16 +509,17 @@ bool IndexMain_DoCreateIndexUpdate(TimestampManager* timestamp_manager) {
output << "\n total: " << FormatMicroseconds(total); output << "\n total: " << FormatMicroseconds(total);
output << " path: " << response->current_index->path; output << " path: " << response->current_index->path;
LOG_S(INFO) << output.rdbuf(); LOG_S(INFO) << output.rdbuf();
#undef PRINT_SECTION #undef PRINT_SECTION
if (response->is_interactive) if (response->is_interactive)
LOG_S(INFO) << "Applying IndexUpdate" << std::endl << update.ToString(); LOG_S(INFO) << "Applying IndexUpdate" << std::endl << update.ToString();
#endif #endif
Index_OnIndexed reply(std::move(update), response->perf); Index_OnIndexed reply(std::move(update), response->perf);
queue->on_indexed.PushBack(std::move(reply), response->is_interactive); queue->on_indexed.PushBack(std::move(reply), response->is_interactive);
}
return true; return did_work;
} }
bool IndexMain_LoadPreviousIndex() { bool IndexMain_LoadPreviousIndex() {