@cryptotaxi247 / netdata-1 / commits / 4c8107308

* Add a parameter for the libuv worker threads to pre-initialize (#12814)

* Set the thread name for libuv threads to LIBUV_WORKER * Make sure the dbengine thread has the correct name

Stelios Fragkakis committed May 4, 2022 at 17:30 UTC 4c8107308e344098f99523bd680f8cf0eb4d3117

3 files changed +7 -1

daemon/main.c

@@ -1097,6 +1097,7 @@ int main(int argc, char **argv) {

1097

1098 // prepare configuration environment variables for the plugins

1099

1100 + setenv("UV_THREADPOOL_SIZE", config_get(CONFIG_SECTION_GLOBAL, "libuv worker threads", "16"), 1);

1101 get_netdata_configured_variables();

1102 set_global_environment();

1103

database/engine/rrdengine.c

@@ -1186,6 +1186,7 @@ void rrdeng_worker(void* arg)

1186

1187 fatal_assert(0 == uv_timer_start(&timer_req, timer_cb, TIMER_PERIOD_MS, TIMER_PERIOD_MS));

1188 shutdown = 0;

1189 + int set_name = 0;

1190 while (likely(shutdown == 0 || rrdeng_threads_alive(wc))) {

1191 uv_run(loop, UV_RUN_DEFAULT);

1192 rrdeng_cleanup_finished_threads(wc);

@@ -1230,6 +1231,10 @@ void rrdeng_worker(void* arg)

1231 break;

1232 case RRDENG_READ_EXTENT:

1233 do_read_extent(wc, cmd.read_extent.page_cache_descr, cmd.read_extent.page_count, 1);

1234 + if (unlikely(!set_name)) {

1235 + set_name = 1;

1236 + uv_thread_set_name_np(ctx->worker_config.thread, "DBENGINE");

1237 + }

1238 break;

1239 case RRDENG_COMMIT_PAGE:

1240 do_commit_transaction(wc, STORE_DATA, NULL);

database/engine/rrdengineapi.c

+1 -1

@@ -946,7 +946,7 @@ int rrdeng_init(RRDHOST *host, struct rrdengine_instance **ctxp, char *dbfiles_p

946 /* wait for worker thread to initialize */

947 completion_wait_for(&ctx->rrdengine_completion);

948 completion_destroy(&ctx->rrdengine_completion);

949 - uv_thread_set_name_np(ctx->worker_config.thread, "DBENGINE");

949 + uv_thread_set_name_np(ctx->worker_config.thread, "LIBUV_WORKER");

950 if (ctx->worker_config.error) {

951 goto error_after_rrdeng_worker;

952 }