diff --git a/app/vminsert/main.go b/app/vminsert/main.go
index 0cc415187..c8b82060b 100644
--- a/app/vminsert/main.go
+++ b/app/vminsert/main.go
@@ -53,7 +53,7 @@ func main() {
 		logger.Fatalf("missing -storageNode arg")
 	}
 	netstorage.InitStorageNodes(*storageNodes)
-	logger.Infof("successfully initialized netstorage in %s", time.Since(startTime))
+	logger.Infof("successfully initialized netstorage in %.3f seconds", time.Since(startTime).Seconds())
 
 	storage.SetMaxLabelsPerTimeseries(*maxLabelsPerTimeseries)
 
@@ -80,7 +80,7 @@ func main() {
 	if err := httpserver.Stop(*httpListenAddr); err != nil {
 		logger.Fatalf("cannot stop the service: %s", err)
 	}
-	logger.Infof("successfully shut down the service in %s", time.Since(startTime))
+	logger.Infof("successfully shut down the service in %.3f seconds", time.Since(startTime).Seconds())
 
 	if len(*graphiteListenAddr) > 0 {
 		graphiteServer.MustStop()
@@ -95,7 +95,7 @@ func main() {
 	logger.Infof("shutting down neststorage...")
 	startTime = time.Now()
 	netstorage.Stop()
-	logger.Infof("successfully stopped netstorage in %s", time.Since(startTime))
+	logger.Infof("successfully stopped netstorage in %.3f seconds", time.Since(startTime).Seconds())
 
 	fs.MustStopDirRemover()
 
diff --git a/app/vmselect/main.go b/app/vmselect/main.go
index 2d7a0569e..5c9f4f78d 100644
--- a/app/vmselect/main.go
+++ b/app/vmselect/main.go
@@ -56,7 +56,7 @@ func main() {
 		logger.Fatalf("missing -storageNode arg")
 	}
 	netstorage.InitStorageNodes(*storageNodes)
-	logger.Infof("started netstorage in %s", time.Since(startTime))
+	logger.Infof("started netstorage in %.3f seconds", time.Since(startTime).Seconds())
 
 	if len(*cacheDataPath) > 0 {
 		tmpDataPath := *cacheDataPath + "/tmp"
@@ -81,7 +81,7 @@ func main() {
 	if err := httpserver.Stop(*httpListenAddr); err != nil {
 		logger.Fatalf("cannot stop the service: %s", err)
 	}
-	logger.Infof("successfully shut down the service in %s", time.Since(startTime))
+	logger.Infof("successfully shut down the service in %.3f seconds", time.Since(startTime).Seconds())
 
 	logger.Infof("shutting down neststorage...")
 	startTime = time.Now()
@@ -89,7 +89,7 @@ func main() {
 	if len(*cacheDataPath) > 0 {
 		promql.StopRollupResultCache()
 	}
-	logger.Infof("successfully stopped netstorage in %s", time.Since(startTime))
+	logger.Infof("successfully stopped netstorage in %.3f seconds", time.Since(startTime).Seconds())
 
 	fs.MustStopDirRemover()
 
diff --git a/app/vmselect/promql/exec.go b/app/vmselect/promql/exec.go
index f41f88cff..c6db60b23 100644
--- a/app/vmselect/promql/exec.go
+++ b/app/vmselect/promql/exec.go
@@ -26,8 +26,8 @@ func Exec(ec *EvalConfig, q string, isFirstPointOnly bool) ([]netstorage.Result,
 		defer func() {
 			d := time.Since(startTime)
 			if d >= *logSlowQueryDuration {
-				logger.Infof("slow query according to -search.logSlowQueryDuration=%s: duration=%s, start=%d, end=%d, step=%d, accountID=%d, projectID=%d, query=%q",
-					*logSlowQueryDuration, d, ec.Start/1000, ec.End/1000, ec.Step/1000, ec.AuthToken.AccountID, ec.AuthToken.ProjectID, q)
+				logger.Infof("slow query according to -search.logSlowQueryDuration=%s: duration=%.3f seconds, start=%d, end=%d, step=%d, accountID=%d, projectID=%d, query=%q",
+					*logSlowQueryDuration, d.Seconds(), ec.Start/1000, ec.End/1000, ec.Step/1000, ec.AuthToken.AccountID, ec.AuthToken.ProjectID, q)
 				slowQueries.Inc()
 			}
 		}()
diff --git a/app/vmselect/promql/rollup_result_cache.go b/app/vmselect/promql/rollup_result_cache.go
index 41fb23d11..7ef34aeb5 100644
--- a/app/vmselect/promql/rollup_result_cache.go
+++ b/app/vmselect/promql/rollup_result_cache.go
@@ -77,8 +77,8 @@ func InitRollupResultCache(cachePath string) {
 		return stats
 	}
 	if len(rollupResultCachePath) > 0 {
-		logger.Infof("loaded rollupResult cache from %q in %s; entriesCount: %d, sizeBytes: %d",
-			rollupResultCachePath, time.Since(startTime), fcs().EntriesCount, fcs().BytesSize)
+		logger.Infof("loaded rollupResult cache from %q in %.3f seconds; entriesCount: %d, sizeBytes: %d",
+			rollupResultCachePath, time.Since(startTime).Seconds(), fcs().EntriesCount, fcs().BytesSize)
 	}
 
 	metrics.NewGauge(`vm_cache_entries{type="promql/rollupResult"}`, func() float64 {
@@ -116,8 +116,8 @@ func StopRollupResultCache() {
 	rollupResultCacheV.c.UpdateStats(&fcs)
 	rollupResultCacheV.c.Stop()
 	rollupResultCacheV.c = nil
-	logger.Infof("saved rollupResult cache to %q in %s; entriesCount: %d, sizeBytes: %d",
-		rollupResultCachePath, time.Since(startTime), fcs.EntriesCount, fcs.BytesSize)
+	logger.Infof("saved rollupResult cache to %q in %.3f seconds; entriesCount: %d, sizeBytes: %d",
+		rollupResultCachePath, time.Since(startTime).Seconds(), fcs.EntriesCount, fcs.BytesSize)
 }
 
 // TODO: convert this cache to distributed cache shared among vmselect
diff --git a/app/vmstorage/main.go b/app/vmstorage/main.go
index 0be6a04ea..99982b3b7 100644
--- a/app/vmstorage/main.go
+++ b/app/vmstorage/main.go
@@ -52,8 +52,8 @@ func main() {
 	blocksCount := tm.SmallBlocksCount + tm.BigBlocksCount
 	rowsCount := tm.SmallRowsCount + tm.BigRowsCount
 	sizeBytes := tm.SmallSizeBytes + tm.BigSizeBytes
-	logger.Infof("successfully opened storage %q in %s; partsCount: %d; blocksCount: %d; rowsCount: %d; sizeBytes: %d",
-		*storageDataPath, time.Since(startTime), partsCount, blocksCount, rowsCount, sizeBytes)
+	logger.Infof("successfully opened storage %q in %.3f seconds; partsCount: %d; blocksCount: %d; rowsCount: %d; sizeBytes: %d",
+		*storageDataPath, time.Since(startTime).Seconds(), partsCount, blocksCount, rowsCount, sizeBytes)
 
 	registerStorageMetrics(strg)
 
@@ -76,12 +76,12 @@ func main() {
 	logger.Infof("gracefully shutting down the service")
 	startTime = time.Now()
 	srv.MustClose()
-	logger.Infof("successfully shut down the service in %s", time.Since(startTime))
+	logger.Infof("successfully shut down the service in %.3f seconds", time.Since(startTime).Seconds())
 
 	logger.Infof("gracefully closing the storage at %s", *storageDataPath)
 	startTime = time.Now()
 	strg.MustClose()
-	logger.Infof("successfully closed the storage in %s", time.Since(startTime))
+	logger.Infof("successfully closed the storage in %.3f seconds", time.Since(startTime).Seconds())
 
 	fs.MustStopDirRemover()
 
diff --git a/lib/backup/actions/backup.go b/lib/backup/actions/backup.go
index bbc8df4f6..6661af9c1 100644
--- a/lib/backup/actions/backup.go
+++ b/lib/backup/actions/backup.go
@@ -166,8 +166,8 @@ func runBackup(src *fslocal.FS, dst common.RemoteFS, origin common.OriginFS, con
 		}
 	}
 
-	logger.Infof("backed up %d bytes in %s; deleted %d bytes; server-side copied %d bytes; uploaded %d bytes",
-		backupSize, time.Since(startTime), deleteSize, copySize, uploadSize)
+	logger.Infof("backed up %d bytes in %.3f seconds; deleted %d bytes; server-side copied %d bytes; uploaded %d bytes",
+		backupSize, time.Since(startTime).Seconds(), deleteSize, copySize, uploadSize)
 
 	return nil
 }
diff --git a/lib/backup/actions/restore.go b/lib/backup/actions/restore.go
index 5994dea81..f681e876c 100644
--- a/lib/backup/actions/restore.go
+++ b/lib/backup/actions/restore.go
@@ -182,7 +182,8 @@ func (r *Restore) Run() error {
 		}
 	}
 
-	logger.Infof("restored %d bytes from backup in %s; deleted %d bytes; downloaded %d bytes", backupSize, time.Since(startTime), deleteSize, downloadSize)
+	logger.Infof("restored %d bytes from backup in %.3f seconds; deleted %d bytes; downloaded %d bytes",
+		backupSize, time.Since(startTime).Seconds(), deleteSize, downloadSize)
 
 	return nil
 }
diff --git a/lib/mergeset/table.go b/lib/mergeset/table.go
index f966d2cac..7a0c0df46 100644
--- a/lib/mergeset/table.go
+++ b/lib/mergeset/table.go
@@ -187,8 +187,8 @@ func OpenTable(path string, flushCallback func(), prepareBlock PrepareBlockCallb
 
 	var m TableMetrics
 	tb.UpdateMetrics(&m)
-	logger.Infof("table %q has been opened in %s; partsCount: %d; blocksCount: %d, itemsCount: %d; sizeBytes: %d",
-		path, time.Since(startTime), m.PartsCount, m.BlocksCount, m.ItemsCount, m.SizeBytes)
+	logger.Infof("table %q has been opened in %.3f seconds; partsCount: %d; blocksCount: %d, itemsCount: %d; sizeBytes: %d",
+		path, time.Since(startTime).Seconds(), m.PartsCount, m.BlocksCount, m.ItemsCount, m.SizeBytes)
 
 	tb.convertersWG.Add(1)
 	go func() {
@@ -206,17 +206,17 @@ func (tb *Table) MustClose() {
 	logger.Infof("waiting for raw items flusher to stop on %q...", tb.path)
 	startTime := time.Now()
 	tb.rawItemsFlusherWG.Wait()
-	logger.Infof("raw items flusher stopped in %s on %q", time.Since(startTime), tb.path)
+	logger.Infof("raw items flusher stopped in %.3f seconds on %q", time.Since(startTime).Seconds(), tb.path)
 
 	logger.Infof("waiting for converters to stop on %q...", tb.path)
 	startTime = time.Now()
 	tb.convertersWG.Wait()
-	logger.Infof("converters stopped in %s on %q", time.Since(startTime), tb.path)
+	logger.Infof("converters stopped in %.3f seconds on %q", time.Since(startTime).Seconds(), tb.path)
 
 	logger.Infof("waiting for part mergers to stop on %q...", tb.path)
 	startTime = time.Now()
 	tb.partMergersWG.Wait()
-	logger.Infof("part mergers stopped in %s on %q", time.Since(startTime), tb.path)
+	logger.Infof("part mergers stopped in %.3f seconds on %q", time.Since(startTime).Seconds(), tb.path)
 
 	logger.Infof("flushing inmemory parts to files on %q...", tb.path)
 	startTime = time.Now()
@@ -242,7 +242,7 @@ func (tb *Table) MustClose() {
 	if err := tb.mergePartsOptimal(pws, nil); err != nil {
 		logger.Panicf("FATAL: cannot flush inmemory parts to files in %q: %s", tb.path, err)
 	}
-	logger.Infof("%d inmemory parts have been flushed to files in %s on %q", len(pws), time.Since(startTime), tb.path)
+	logger.Infof("%d inmemory parts have been flushed to files in %.3f seconds on %q", len(pws), time.Since(startTime).Seconds(), tb.path)
 
 	// Remove references to parts from the tb, so they may be eventually closed
 	// after all the searches are done.
@@ -447,7 +447,7 @@ func (tb *Table) convertToV1280() {
 			logger.Errorf("failed round 1 of background conversion of %q to v1.28.0 format: %s", tb.path, err)
 			return
 		}
-		logger.Infof("finished round 1 of background conversion of %q to v1.28.0 format in %s", tb.path, time.Since(startTime))
+		logger.Infof("finished round 1 of background conversion of %q to v1.28.0 format in %.3f seconds", tb.path, time.Since(startTime).Seconds())
 
 		// The second round is needed in order to merge small blocks
 		// with tag->metricIDs rows left after the first round.
@@ -460,7 +460,7 @@ func (tb *Table) convertToV1280() {
 				return
 			}
 		}
-		logger.Infof("finished round 2 of background conversion of %q to v1.28.0 format in %s", tb.path, time.Since(startTime))
+		logger.Infof("finished round 2 of background conversion of %q to v1.28.0 format in %.3f seconds", tb.path, time.Since(startTime).Seconds())
 	}
 
 	if err := fs.WriteFileAtomically(flagFilePath, []byte("ok")); err != nil {
@@ -853,7 +853,8 @@ func (tb *Table) mergeParts(pws []*partWrapper, stopCh <-chan struct{}, isOuterP
 
 	d := time.Since(startTime)
 	if d > 10*time.Second {
-		logger.Infof("merged %d items in %s at %d items/sec to %q; sizeBytes: %d", outItemsCount, d, int(float64(outItemsCount)/d.Seconds()), dstPartPath, newPSize)
+		logger.Infof("merged %d items in %.3f seconds at %d items/sec to %q; sizeBytes: %d",
+			outItemsCount, d.Seconds(), int(float64(outItemsCount)/d.Seconds()), dstPartPath, newPSize)
 	}
 
 	return nil
@@ -1057,7 +1058,7 @@ func (tb *Table) CreateSnapshotAt(dstDir string) error {
 	parentDir := filepath.Dir(dstDir)
 	fs.MustSyncPath(parentDir)
 
-	logger.Infof("created Table snapshot of %q at %q in %s", srcDir, dstDir, time.Since(startTime))
+	logger.Infof("created Table snapshot of %q at %q in %.3f seconds", srcDir, dstDir, time.Since(startTime).Seconds())
 	return nil
 }
 
diff --git a/lib/storage/partition.go b/lib/storage/partition.go
index aa50b0f35..feaad32be 100644
--- a/lib/storage/partition.go
+++ b/lib/storage/partition.go
@@ -613,22 +613,22 @@ func (pt *partition) MustClose() {
 	logger.Infof("waiting for inmemory parts flusher to stop on %q...", pt.smallPartsPath)
 	startTime := time.Now()
 	pt.inmemoryPartsFlusherWG.Wait()
-	logger.Infof("inmemory parts flusher stopped in %s on %q", time.Since(startTime), pt.smallPartsPath)
+	logger.Infof("inmemory parts flusher stopped in %.3f seconds on %q", time.Since(startTime).Seconds(), pt.smallPartsPath)
 
 	logger.Infof("waiting for raw rows flusher to stop on %q...", pt.smallPartsPath)
 	startTime = time.Now()
 	pt.rawRowsFlusherWG.Wait()
-	logger.Infof("raw rows flusher stopped in %s on %q", time.Since(startTime), pt.smallPartsPath)
+	logger.Infof("raw rows flusher stopped in %.3f seconds on %q", time.Since(startTime).Seconds(), pt.smallPartsPath)
 
 	logger.Infof("waiting for small part mergers to stop on %q...", pt.smallPartsPath)
 	startTime = time.Now()
 	pt.smallPartsMergerWG.Wait()
-	logger.Infof("small part mergers stopped in %s on %q", time.Since(startTime), pt.smallPartsPath)
+	logger.Infof("small part mergers stopped in %.3f seconds on %q", time.Since(startTime).Seconds(), pt.smallPartsPath)
 
 	logger.Infof("waiting for big part mergers to stop on %q...", pt.bigPartsPath)
 	startTime = time.Now()
 	pt.bigPartsMergerWG.Wait()
-	logger.Infof("big part mergers stopped in %s on %q", time.Since(startTime), pt.bigPartsPath)
+	logger.Infof("big part mergers stopped in %.3f seconds on %q", time.Since(startTime).Seconds(), pt.bigPartsPath)
 
 	logger.Infof("flushing inmemory parts to files on %q...", pt.smallPartsPath)
 	startTime = time.Now()
@@ -654,7 +654,7 @@ func (pt *partition) MustClose() {
 	if err := pt.mergePartsOptimal(pws); err != nil {
 		logger.Panicf("FATAL: cannot flush %d inmemory parts to files on %q: %s", len(pws), pt.smallPartsPath, err)
 	}
-	logger.Infof("%d inmemory parts have been flushed to files in %s on %q", len(pws), time.Since(startTime), pt.smallPartsPath)
+	logger.Infof("%d inmemory parts have been flushed to files in %.3f seconds on %q", len(pws), time.Since(startTime).Seconds(), pt.smallPartsPath)
 
 	// Remove references to smallParts from the pt, so they may be eventually closed
 	// after all the searches are done.
@@ -1167,7 +1167,8 @@ func (pt *partition) mergeParts(pws []*partWrapper, stopCh <-chan struct{}) erro
 
 	d := time.Since(startTime)
 	if d > 10*time.Second {
-		logger.Infof("merged %d rows in %s at %d rows/sec to %q; sizeBytes: %d", outRowsCount, d, int(float64(outRowsCount)/d.Seconds()), dstPartPath, newPSize)
+		logger.Infof("merged %d rows in %.3f seconds at %d rows/sec to %q; sizeBytes: %d",
+			outRowsCount, d.Seconds(), int(float64(outRowsCount)/d.Seconds()), dstPartPath, newPSize)
 	}
 
 	return nil
@@ -1359,8 +1360,7 @@ func openParts(pathPrefix1, pathPrefix2, path string) ([]*partWrapper, error) {
 			mustCloseParts(pws)
 			return nil, fmt.Errorf("cannot open part %q: %s", partPath, err)
 		}
-		d := time.Since(startTime)
-		logger.Infof("opened part %q in %s", partPath, d)
+		logger.Infof("opened part %q in %.3f seconds", partPath, time.Since(startTime).Seconds())
 
 		pw := &partWrapper{
 			p:        p,
@@ -1407,7 +1407,8 @@ func (pt *partition) CreateSnapshotAt(smallPath, bigPath string) error {
 		return fmt.Errorf("cannot create snapshot for %q: %s", pt.bigPartsPath, err)
 	}
 
-	logger.Infof("created partition snapshot of %q and %q at %q and %q in %s", pt.smallPartsPath, pt.bigPartsPath, smallPath, bigPath, time.Since(startTime))
+	logger.Infof("created partition snapshot of %q and %q at %q and %q in %.3f seconds",
+		pt.smallPartsPath, pt.bigPartsPath, smallPath, bigPath, time.Since(startTime).Seconds())
 	return nil
 }
 
diff --git a/lib/storage/storage.go b/lib/storage/storage.go
index 2f1d71bb1..a6ea9b9cf 100644
--- a/lib/storage/storage.go
+++ b/lib/storage/storage.go
@@ -226,7 +226,7 @@ func (s *Storage) CreateSnapshot() (string, error) {
 	fs.MustSyncPath(dstDir)
 	fs.MustSyncPath(srcDir + "/snapshots")
 
-	logger.Infof("created Storage snapshot for %q at %q in %s", srcDir, dstDir, time.Since(startTime))
+	logger.Infof("created Storage snapshot for %q at %q in %.3f seconds", srcDir, dstDir, time.Since(startTime).Seconds())
 	return snapshotName, nil
 }
 
@@ -271,7 +271,7 @@ func (s *Storage) DeleteSnapshot(snapshotName string) error {
 	fs.MustRemoveAll(idbPath)
 	fs.MustRemoveAll(snapshotPath)
 
-	logger.Infof("deleted snapshot %q in %s", snapshotPath, time.Since(startTime))
+	logger.Infof("deleted snapshot %q in %.3f seconds", snapshotPath, time.Since(startTime).Seconds())
 
 	return nil
 }
@@ -575,7 +575,7 @@ func (s *Storage) mustLoadHourMetricIDs(hour uint64, name string) *hourMetricIDs
 		byTenant[k] = m
 	}
 
-	logger.Infof("loaded %s from %q in %s; entriesCount: %d; sizeBytes: %d", name, path, time.Since(startTime), hmLen, srcOrigLen)
+	logger.Infof("loaded %s from %q in %.3f seconds; entriesCount: %d; sizeBytes: %d", name, path, time.Since(startTime).Seconds(), hmLen, srcOrigLen)
 	return &hourMetricIDs{
 		m:        m,
 		byTenant: byTenant,
@@ -623,7 +623,7 @@ func (s *Storage) mustSaveHourMetricIDs(hm *hourMetricIDs, name string) {
 	if err := ioutil.WriteFile(path, dst, 0644); err != nil {
 		logger.Panicf("FATAL: cannot write %d bytes to %q: %s", len(dst), path, err)
 	}
-	logger.Infof("saved %s to %q in %s; entriesCount: %d; sizeBytes: %d", name, path, time.Since(startTime), hm.m.Len(), len(dst))
+	logger.Infof("saved %s to %q in %.3f seconds; entriesCount: %d; sizeBytes: %d", name, path, time.Since(startTime).Seconds(), hm.m.Len(), len(dst))
 }
 
 func (s *Storage) mustLoadCache(info, name string, sizeBytes int) *workingsetcache.Cache {
@@ -633,8 +633,8 @@ func (s *Storage) mustLoadCache(info, name string, sizeBytes int) *workingsetcac
 	c := workingsetcache.Load(path, sizeBytes, time.Hour)
 	var cs fastcache.Stats
 	c.UpdateStats(&cs)
-	logger.Infof("loaded %s cache from %q in %s; entriesCount: %d; sizeBytes: %d",
-		info, path, time.Since(startTime), cs.EntriesCount, cs.BytesSize)
+	logger.Infof("loaded %s cache from %q in %.3f seconds; entriesCount: %d; sizeBytes: %d",
+		info, path, time.Since(startTime).Seconds(), cs.EntriesCount, cs.BytesSize)
 	return c
 }
 
@@ -648,8 +648,8 @@ func (s *Storage) mustSaveAndStopCache(c *workingsetcache.Cache, info, name stri
 	var cs fastcache.Stats
 	c.UpdateStats(&cs)
 	c.Stop()
-	logger.Infof("saved %s cache to %q in %s; entriesCount: %d; sizeBytes: %d",
-		info, path, time.Since(startTime), cs.EntriesCount, cs.BytesSize)
+	logger.Infof("saved %s cache to %q in %.3f seconds; entriesCount: %d; sizeBytes: %d",
+		info, path, time.Since(startTime).Seconds(), cs.EntriesCount, cs.BytesSize)
 }
 
 func nextRetentionDuration(retentionMonths int) time.Duration {
diff --git a/lib/storage/table.go b/lib/storage/table.go
index 3746a0547..698b4569d 100644
--- a/lib/storage/table.go
+++ b/lib/storage/table.go
@@ -170,7 +170,7 @@ func (tb *table) CreateSnapshot(snapshotName string) (string, string, error) {
 	fs.MustSyncPath(filepath.Dir(dstSmallDir))
 	fs.MustSyncPath(filepath.Dir(dstBigDir))
 
-	logger.Infof("created table snapshot for %q at (%q, %q) in %s", tb.path, dstSmallDir, dstBigDir, time.Since(startTime))
+	logger.Infof("created table snapshot for %q at (%q, %q) in %.3f seconds", tb.path, dstSmallDir, dstBigDir, time.Since(startTime).Seconds())
 	return dstSmallDir, dstBigDir, nil
 }