use get_physical for only physical core count

Signed-off-by: strawberry <strawberry@puppygock.gay>

conduwuit-example.toml

@@ -256,8 +256,8 @@ allow_check_for_updates = true
 # Time in seconds before RocksDB will forcibly rotate logs. Defaults to 0.
 #rocksdb_log_time_to_roll = 0
 
-# Amount of threads that RocksDB will use for parallelism. Set to 0 to use all your CPUs.
-# Defaults to your CPU count divided by 2 (half)
+# Amount of threads that RocksDB will use for parallelism. Set to 0 to use all your physical cores.
+# Defaults to your CPU physical core count (not logical threads) count divided by 2 (half)
 #rocksdb_parallelism_threads = 0
 
 

src/config/mod.rs

@@ -507,7 +507,7 @@ fn default_rocksdb_log_time_to_roll() -> usize {
 }
 
 fn default_rocksdb_parallelism_threads() -> usize {
-    num_cpus::get() / 2
+    num_cpus::get_physical() / 2
 }
 
 // I know, it's a great name

src/database/abstraction/rocksdb.rs

@@ -48,7 +48,7 @@ fn db_options(rocksdb_cache: &rocksdb::Cache, config: &Config) -> rocksdb::Optio
     };
 
     let threads = if config.rocksdb_parallelism_threads == 0 {
-        num_cpus::get() // max CPUs if user specified 0
+        num_cpus::get_physical() // max cores if user specified 0
     } else {
         config.rocksdb_parallelism_threads
     };