analysis-stats: run Salsa's LRU at the end of analysis

Author: davidbarsky

crates/rust-analyzer/src/cli/analysis_stats.rs

@@ -22,7 +22,10 @@ use ide::{
     Analysis, AnalysisHost, AnnotationConfig, DiagnosticsConfig, Edition, InlayFieldsToResolve,
     InlayHintsConfig, LineCol, RootDatabase,
 };
-use ide_db::{EditionedFileId, LineIndexDatabase, SnippetCap, base_db::SourceDatabase};
+use ide_db::{
+    EditionedFileId, LineIndexDatabase, SnippetCap,
+    base_db::{SourceDatabase, salsa::Database},
+};
 use itertools::Itertools;
 use load_cargo::{LoadCargoConfig, ProcMacroServerChoice, load_workspace};
 use oorandom::Rand32;
@@ -104,7 +107,7 @@ impl flags::AnalysisStats {
         }
         eprintln!(")");
 
-        let host = AnalysisHost::with_database(db);
+        let mut host = AnalysisHost::with_database(db);
         let db = host.raw_database();
 
         let mut analysis_sw = self.stop_watch();
@@ -256,6 +259,8 @@ impl flags::AnalysisStats {
         if let Some(instructions) = total_span.instructions {
             report_metric("total instructions", instructions, "#instr");
         }
+        let db = host.raw_database_mut();
+        db.trigger_lru_eviction();
         report_metric("total memory", total_span.memory.allocated.megabytes() as u64, "MB");
 
         if self.source_stats {