From 54e7020ec53fd29c8415ed3f426ff3601bd20feb Mon Sep 17 00:00:00 2001
From: Daniel Milde <daniel@milde.cz>
Date: Wed, 22 Sep 2021 17:35:24 +0200
Subject: [PATCH] feat: stop GC while running analysis

---
 report/export.go | 2 ++
 stdout/stdout.go | 2 ++
 tui/actions.go   | 4 +++-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/report/export.go b/report/export.go
index 85ad477d6..24285795e 100644
--- a/report/export.go
+++ b/report/export.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"runtime/debug"
 	"sort"
 	"sync"
 	"time"
@@ -83,6 +84,7 @@ func (ui *UI) AnalyzePath(path string, _ *analyze.Dir) error {
 	wait.Add(1)
 	go func() {
 		defer wait.Done()
+		defer debug.SetGCPercent(debug.SetGCPercent(-1))
 		dir = ui.Analyzer.AnalyzeDir(path, ui.CreateIgnoreFunc())
 	}()
 
diff --git a/stdout/stdout.go b/stdout/stdout.go
index 21c6b8251..355097caf 100644
--- a/stdout/stdout.go
+++ b/stdout/stdout.go
@@ -5,6 +5,7 @@ import (
 	"io"
 	"math"
 	"runtime"
+	"runtime/debug"
 	"sort"
 	"sync"
 	"time"
@@ -131,6 +132,7 @@ func (ui *UI) AnalyzePath(path string, _ *analyze.Dir) error {
 	wait.Add(1)
 	go func() {
 		defer wait.Done()
+		defer debug.SetGCPercent(debug.SetGCPercent(-1))
 		dir = ui.Analyzer.AnalyzeDir(path, ui.CreateIgnoreFunc())
 	}()
 
diff --git a/tui/actions.go b/tui/actions.go
index 0eb5a1748..ab8d86f38 100644
--- a/tui/actions.go
+++ b/tui/actions.go
@@ -6,6 +6,7 @@ import (
 	"io"
 	"os"
 	"runtime"
+	"runtime/debug"
 	"strings"
 
 	"github.com/dundee/gdu/v5/build"
@@ -53,8 +54,9 @@ func (ui *UI) AnalyzePath(path string, parentDir *analyze.Dir) error {
 	go ui.updateProgress()
 
 	go func() {
+		defer debug.SetGCPercent(debug.SetGCPercent(-1))
 		currentDir := ui.Analyzer.AnalyzeDir(path, ui.CreateIgnoreFunc())
-		runtime.GC()
+		debug.FreeOSMemory()
 
 		if parentDir != nil {
 			currentDir.Parent = parentDir