Add Restic read concurrency setting

dist/urbm-2026.06.15.r022-x86_64-1.txz.sha256

@@ -1 +0,0 @@
-ad334b4da853736a6583a0a96e11d3d196a4b22275b95dc0eb0e624a66f77bdb  urbm-2026.06.15.r022-x86_64-1.txz

dist/urbm-2026.06.15.r023-x86_64-1.txz.sha256

@@ -0,0 +1 @@
+e7a53aae8a052d41025771b79811176c9570f6ac767734e8ef77fa24fcea0bca  urbm-2026.06.15.r023-x86_64-1.txz

dist/urbm.plg

@@ -2,13 +2,17 @@
 <!DOCTYPE PLUGIN [
 <!ENTITY name "urbm">
 <!ENTITY author "Michael Roll">
-<!ENTITY version "2026.06.15.r022">
+<!ENTITY version "2026.06.15.r023">
 <!ENTITY pluginURL "https://git.casaderoll.de/michael/URBM/raw/branch/main/dist/urbm.plg">
 <!ENTITY packageURL "https://git.casaderoll.de/michael/URBM/raw/branch/main/dist/urbm-&version;-x86_64-1.txz">
-<!ENTITY packageSHA256 "ad334b4da853736a6583a0a96e11d3d196a4b22275b95dc0eb0e624a66f77bdb">
+<!ENTITY packageSHA256 "e7a53aae8a052d41025771b79811176c9570f6ac767734e8ef77fa24fcea0bca">
 ]>
 <PLUGIN name="&name;" author="&author;" version="&version;" pluginURL="&pluginURL;" min="7.0.0" support="https://git.casaderoll.de/michael/URBM/issues" icon="urbm.png">
   <CHANGES>
+### 2026.06.15.r023
+- Add a per-job Restic file read concurrency setting for faster backups from SSD and NVMe sources.
+- Keep zero as the backward-compatible Restic default and validate custom values from 1 through 64.
+
 ### 2026.06.15.r022
 - Replace the source folder table with a lazy-loaded expandable tree for Restic and Rsync jobs.
 - Add rotating disclosure triangles, nested indentation, and per-folder loading, empty, retry, and error states.

internal/model/model.go

@@ -47,24 +47,25 @@ type Settings struct {
 }
 
 type Job struct {
-	SchemaVersion int          `json:"schemaVersion"`
+	SchemaVersion   int          `json:"schemaVersion"`
-	ID            string       `json:"id"`
+	ID              string       `json:"id"`
-	Name          string       `json:"name"`
+	Name            string       `json:"name"`
-	Type          JobType      `json:"type"`
+	Type            JobType      `json:"type"`
-	Enabled       bool         `json:"enabled"`
+	Enabled         bool         `json:"enabled"`
-	RepositoryID  string       `json:"repositoryId"`
+	RepositoryID    string       `json:"repositoryId"`
-	Sources       []Source     `json:"sources"`
+	Sources         []Source     `json:"sources"`
-	Schedule      Schedule     `json:"schedule"`
+	Schedule        Schedule     `json:"schedule"`
-	Consistency   Consistency  `json:"consistency"`
+	Consistency     Consistency  `json:"consistency"`
-	Compression   string       `json:"compression"`
+	Compression     string       `json:"compression"`
-	CPUCores      int          `json:"cpuCores,omitempty"`
+	CPUCores        int          `json:"cpuCores,omitempty"`
-	Excludes      []string     `json:"excludes,omitempty"`
+	ReadConcurrency int          `json:"readConcurrency,omitempty"`
-	Tags          []string     `json:"tags,omitempty"`
+	Excludes        []string     `json:"excludes,omitempty"`
-	FlashImage    bool         `json:"flashImage,omitempty"`
+	Tags            []string     `json:"tags,omitempty"`
-	Retention     Retention    `json:"retention"`
+	FlashImage      bool         `json:"flashImage,omitempty"`
-	NotifyOn      []string     `json:"notifyOn,omitempty"`
+	Retention       Retention    `json:"retention"`
-	ShutdownSecs  int          `json:"shutdownTimeoutSeconds"`
+	NotifyOn        []string     `json:"notifyOn,omitempty"`
-	Rsync         RsyncOptions `json:"rsync,omitempty"`
+	ShutdownSecs    int          `json:"shutdownTimeoutSeconds"`
+	Rsync           RsyncOptions `json:"rsync,omitempty"`
 }
 
 type RsyncOptions struct {

internal/model/validate.go

@@ -138,6 +138,9 @@ func ValidateJob(j Job) error {
 	if j.CPUCores < 0 || j.CPUCores > 256 {
 		return errors.New("cpuCores must be between 0 and 256")
 	}
+	if j.ReadConcurrency < 0 || j.ReadConcurrency > 64 {
+		return errors.New("readConcurrency must be between 0 and 64")
+	}
 	if j.Consistency.Mode != "live" && j.Consistency.Mode != "stop" {
 		return errors.New("consistency mode must be live or stop")
 	}

internal/model/validate_test.go

@@ -92,6 +92,18 @@ func TestBackupCPUCoresRange(t *testing.T) {
 	}
 }
 
+func TestBackupReadConcurrencyRange(t *testing.T) {
+	job := Job{SchemaVersion: 1, ID: "job", Name: "Share", Type: JobShare, RepositoryID: "repo", Sources: []Source{{Path: "/mnt/user/data"}}, Consistency: Consistency{Mode: "live"}, Compression: "auto", Retention: Retention{KeepWithinDays: 30}}
+	job.ReadConcurrency = 8
+	if err := ValidateJob(job); err != nil {
+		t.Fatalf("valid read concurrency rejected: %v", err)
+	}
+	job.ReadConcurrency = 65
+	if err := ValidateJob(job); err == nil {
+		t.Fatal("excessive read concurrency accepted")
+	}
+}
+
 func TestRsyncJobDoesNotRequireRepository(t *testing.T) {
 	c := DefaultConfig()
 	c.Jobs = []Job{{SchemaVersion: 1, ID: "rsync-job", Name: "Mirror", Type: JobRsync, Enabled: true, Sources: []Source{{Path: "/mnt/user/data"}}, Rsync: RsyncOptions{Target: "/mnt/remotes/backup", Overwrite: true}}}

internal/restic/restic.go

@@ -121,6 +121,9 @@ func (r *Runner) TestPassword(ctx context.Context, repo model.Repository, passwo
 
 func (r *Runner) Backup(ctx context.Context, repo model.Repository, job model.Job, sources []string, progress ProgressCallback) (Summary, error) {
 	args := []string{"backup", "--json", "--compression", job.Compression}
+	if job.ReadConcurrency > 0 {
+		args = append(args, "--read-concurrency", fmt.Sprint(job.ReadConcurrency))
+	}
 	for _, tag := range append([]string{"urbm", "job:" + job.ID}, job.Tags...) {
 		args = append(args, "--tag", tag)
 	}

internal/restic/restic_test.go

@@ -110,6 +110,29 @@ func TestBackupLimitsCPUForThisJob(t *testing.T) {
 	}
 }
 
+func TestBackupSetsReadConcurrencyForThisJob(t *testing.T) {
+	dir := t.TempDir()
+	argsPath := filepath.Join(dir, "args")
+	script := filepath.Join(dir, "restic")
+	body := fmt.Sprintf("#!/bin/sh\nprintf '%%s\\n' \"$@\" > '%s'\nprintf '%%s\\n' '{\"message_type\":\"summary\",\"snapshot_id\":\"read123\"}'\n", argsPath)
+	if err := os.WriteFile(script, []byte(body), 0700); err != nil {
+		t.Fatal(err)
+	}
+	runner := &Runner{Binary: script, RuntimeDir: dir, Secrets: fakeSecrets{"password": "secret"}}
+	repo := model.Repository{Type: model.RepositoryLocal, Location: "/repo", PasswordRef: "password"}
+	job := model.Job{ID: "job", Compression: "auto", ReadConcurrency: 8}
+	if _, err := runner.Backup(context.Background(), repo, job, []string{"/source"}, nil); err != nil {
+		t.Fatal(err)
+	}
+	args, err := os.ReadFile(argsPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(string(args), "--read-concurrency\n8\n") {
+		t.Fatalf("read concurrency missing from arguments: %s", args)
+	}
+}
+
 func TestBackupImageStreamsRawDeviceWithStableFilename(t *testing.T) {
 	dir := t.TempDir()
 	argsPath := filepath.Join(dir, "args")

plugin/urbm.plg

@@ -2,13 +2,17 @@
 <!DOCTYPE PLUGIN [
 <!ENTITY name "urbm">
 <!ENTITY author "Michael Roll">
-<!ENTITY version "2026.06.15.r022">
+<!ENTITY version "2026.06.15.r023">
 <!ENTITY pluginURL "https://git.casaderoll.de/michael/URBM/raw/branch/main/dist/urbm.plg">
 <!ENTITY packageURL "https://git.casaderoll.de/michael/URBM/raw/branch/main/dist/urbm-&version;-x86_64-1.txz">
 <!ENTITY packageSHA256 "REPLACE_DURING_RELEASE">
 ]>
 <PLUGIN name="&name;" author="&author;" version="&version;" pluginURL="&pluginURL;" min="7.0.0" support="https://git.casaderoll.de/michael/URBM/issues" icon="urbm.png">
   <CHANGES>
+### 2026.06.15.r023
+- Add a per-job Restic file read concurrency setting for faster backups from SSD and NVMe sources.
+- Keep zero as the backward-compatible Restic default and validate custom values from 1 through 64.
+
 ### 2026.06.15.r022
 - Replace the source folder table with a lazy-loaded expandable tree for Restic and Rsync jobs.
 - Add rotating disclosure triangles, nested indentation, and per-folder loading, empty, retry, and error states.

webgui/URBM.page

@@ -9,12 +9,12 @@ Tag="URBM Unraid Restic Backup Manager backup snapshots restore"
 <?php
 $pluginRoot = '/plugins/urbm';
 ?>
-<link rel="stylesheet" href="<?= $pluginRoot ?>/assets/urbm.css?v=20260615r022">
+<link rel="stylesheet" href="<?= $pluginRoot ?>/assets/urbm.css?v=20260615r023">
 <div id="urbm-app" data-api="<?= $pluginRoot ?>/api.php">
   <header class="bu-header">
     <div class="bu-brand">
-      <img class="bu-logo" src="<?= $pluginRoot ?>/images/urbm.png?v=20260615r022" alt="URBM-Logo">
+      <img class="bu-logo" src="<?= $pluginRoot ?>/images/urbm.png?v=20260615r023" alt="URBM-Logo">
-      <div><h1>URBM <span class="bu-version">2026.06.15.r022</span></h1><p>Restic Backup Manager für Unraid</p></div>
+      <div><h1>URBM <span class="bu-version">2026.06.15.r023</span></h1><p>Restic Backup Manager für Unraid</p></div>
     </div>
     <div id="bu-health" class="bu-health" tabindex="0" data-tooltip="Zeigt, ob die URBM-Hintergrundkomponente erreichbar ist. Beispiel: 'Daemon online' bedeutet, dass Jobs gestartet werden können.">Verbindung wird hergestellt...</div>
   </header>
@@ -32,4 +32,4 @@ $pluginRoot = '/plugins/urbm';
   <div id="bu-tooltip" role="tooltip" aria-hidden="true"></div>
 </div>
 <script>window.URBM_CSRF = <?= json_encode($var['csrf_token'] ?? '') ?>;</script>
-<script src="<?= $pluginRoot ?>/assets/urbm-2026.06.15.r022.js"></script>
+<script src="<?= $pluginRoot ?>/assets/urbm-2026.06.15.r023.js"></script>

webgui/assets/urbm.js

@@ -20,6 +20,7 @@
     consistency: 'Live sichert ohne Unterbrechung, kann aber nur crash-konsistent sein. Controlled stop beendet Container oder VM vor dem Backup und startet sie danach wieder.',
     compression: 'Restic-Kompression. auto ist empfohlen; off spart CPU; max spart eher Speicher, benötigt aber mehr CPU-Zeit.',
     cpuCores: 'Begrenzt diesen Backup-Lauf über GOMAXPROCS auf die angegebene Anzahl CPU-Kerne. 0 verwendet wie bisher alle verfügbaren Kerne.',
+    readConcurrency: 'Anzahl der Dateien, die Restic gleichzeitig liest. Höhere Werte können SSD- und NVMe-Quellen mit vielen kleinen Dateien beschleunigen, bei HDDs aber langsamer sein. 0 verwendet den Restic-Standard.',
     sources: 'Optionale manuelle Quellen, eine pro Zeile. Ordner wählst du einfacher über die Checkbox-Liste. Docker- oder VM-ID mit @ voranstellen, z. B. @HomeAssistant.',
     excludes: 'Muster für Dateien, die nicht gesichert werden. Ein Muster pro Zeile. Beispiele: *.tmp, cache/** oder /mnt/user/appdata/plex/Cache/**.',
     shutdownSecs: 'Maximale Wartezeit für einen kontrollierten Stopp. Beispiel: 120 wartet bis zu zwei Minuten; danach wird das Backup ohne Force-Stop abgebrochen.',
@@ -388,7 +389,7 @@
     content.innerHTML = `<section class="bu-card"><h2>Backup-Job ${job.id ? 'bearbeiten' : 'erstellen'}</h2><form id="bu-job-form" class="bu-form">
       <input type="hidden" name="id" value="${esc(job.id || '')}"><label>Name<input name="name" required value="${esc(job.name || '')}"></label>
       <label>Typ<select name="type">${['share','appdata','docker','vm','flash','rsync'].map(v=>`<option value="${v}" ${v===job.type?'selected':''}>${esc(typeLabels[v])}</option>`).join('')}</select></label>
-      <fieldset id="bu-restic-job-settings" class="wide bu-fieldset"><legend>Restic-Einstellungen</legend><div class="bu-form-grid"><label>Repository<select name="repositoryId">${options}</select></label><label>Kompression<select name="compression"><option value="auto" ${(job.compression||'auto')==='auto'?'selected':''}>Automatisch</option><option value="off" ${job.compression==='off'?'selected':''}>Aus</option><option value="max" ${job.compression==='max'?'selected':''}>Maximal</option></select></label><label>CPU-Kerne für dieses Backup<input name="cpuCores" type="number" min="0" max="256" value="${Number(job.cpuCores||0)}"><span class="bu-muted">0 = alle verfügbaren Kerne</span></label></div></fieldset>
+      <fieldset id="bu-restic-job-settings" class="wide bu-fieldset"><legend>Restic-Einstellungen</legend><div class="bu-form-grid"><label>Repository<select name="repositoryId">${options}</select></label><label>Kompression<select name="compression"><option value="auto" ${(job.compression||'auto')==='auto'?'selected':''}>Automatisch</option><option value="off" ${job.compression==='off'?'selected':''}>Aus</option><option value="max" ${job.compression==='max'?'selected':''}>Maximal</option></select></label><label>CPU-Kerne für dieses Backup<input name="cpuCores" type="number" min="0" max="256" value="${Number(job.cpuCores||0)}"><span class="bu-muted">0 = alle verfügbaren Kerne</span></label><label>Gleichzeitig gelesene Dateien<input name="readConcurrency" type="number" min="0" max="64" value="${Number(job.readConcurrency||0)}"><span class="bu-muted">0 = Restic-Standard</span></label></div></fieldset>
       ${scheduleFields(job)}
       <div id="bu-job-specific" class="wide"></div>
       <label class="wide">Ausschlussmuster, eines pro Zeile<textarea name="excludes">${esc((job.excludes||[]).join('\n'))}</textarea></label>
@@ -735,7 +736,7 @@
       if(type==='rsync'&&!rsync.target) throw new Error('Wähle einen Zielordner für die Rsync-Kopie.');
       if(type==='rsync'&&rsync.delete&&!confirm('Rsync darf Dateien am Ziel löschen, die in der Quelle nicht mehr vorhanden sind. Diese Option kann Daten am Ziel entfernen. Wirklich speichern?')) return;
       if(type==='rsync'&&rsync.skipSpaceCheck&&!confirm('Die Kapazitätsprüfung wirklich abschalten? Der Rsync-Lauf kann dann das Ziel vollständig füllen und mit einem Schreibfehler abbrechen.')) return;
-      const job={schemaVersion:1,id:f.get('id')||id('job'),name:f.get('name'),type,enabled:f.get('enabled')==='on',repositoryId:type==='rsync'?'':f.get('repositoryId'),sources,schedule:{cron:scheduleCron(f),timezone:Intl.DateTimeFormat().resolvedOptions().timeZone},consistency:{mode:f.get('consistency')||'live'},compression:type==='rsync'?'':f.get('compression'),cpuCores:type==='rsync'?0:Number(f.get('cpuCores')||0),excludes:lines(f.get('excludes')),tags:existing?.tags||[],flashImage:type==='flash'&&f.get('flashImage')==='on',retention:type==='rsync'?{}:retention,rsync,notifyOn:existing?.notifyOn||['success','warning','failed'],shutdownTimeoutSeconds:Number(f.get('shutdownSecs')||120)};
+      const job={schemaVersion:1,id:f.get('id')||id('job'),name:f.get('name'),type,enabled:f.get('enabled')==='on',repositoryId:type==='rsync'?'':f.get('repositoryId'),sources,schedule:{cron:scheduleCron(f),timezone:Intl.DateTimeFormat().resolvedOptions().timeZone},consistency:{mode:f.get('consistency')||'live'},compression:type==='rsync'?'':f.get('compression'),cpuCores:type==='rsync'?0:Number(f.get('cpuCores')||0),readConcurrency:type==='rsync'?0:Number(f.get('readConcurrency')||0),excludes:lines(f.get('excludes')),tags:existing?.tags||[],flashImage:type==='flash'&&f.get('flashImage')==='on',retention:type==='rsync'?{}:retention,rsync,notifyOn:existing?.notifyOn||['success','warning','failed'],shutdownTimeoutSeconds:Number(f.get('shutdownSecs')||120)};
       state.config.jobs=state.config.jobs.filter(j=>j.id!==job.id).concat(job); await saveConfig(); render();
     }
     if (kind === 'submit-repo') {