Zengtudor/ccls
1
0
Fork 0
mirror of https://github.com/MaskRay/ccls.git synced 2024-11-22 23:55:08 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Only target 80% of threads for indexers by default.

Browse Source 
Using 100% - 1 tended to cause too much resource contention.
This commit is contained in:
Jacob Dufault 2017-10-24 19:18:47 -07:00
parent 37ab94e7b4
commit 39de197e8a
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/command_line.cc
View File

@ -1386,13 +1386,16 @@ bool QueryDbMainLoop(Config* config,
EnsureEndsInSlash(config->projectRoot); EnsureEndsInSlash(config->projectRoot);
// Start indexer threads. // Start indexer threads.
// Set default indexer count if not specified.
if (config->indexerCount == 0) { if (config->indexerCount == 0) {
// If the user has not specified how many indexers to run, try to
// guess an appropriate value. Default to 80% utilization.
const float kDefaultTargetUtilization = 0.8;
config->indexerCount = config->indexerCount =
std::max<int>(std::thread::hardware_concurrency(), 2) - 1; std::thread::hardware_concurrency() * kDefaultTargetUtilization;
if (config->indexerCount <= 0)
config->indexerCount = 1;
} }
std::cerr << "[querydb] Starting " << config->indexerCount LOG_S(INFO) << "Starting " << config->indexerCount << " indexers";
<< " indexers" << std::endl;
for (int i = 0; i < config->indexerCount; ++i) { for (int i = 0; i < config->indexerCount; ++i) {
WorkThread::StartThread("indexer" + std::to_string(i), [=]() { WorkThread::StartThread("indexer" + std::to_string(i), [=]() {
return IndexMain(config, file_consumer_shared, timestamp_manager, return IndexMain(config, file_consumer_shared, timestamp_manager,