e2: configurable hashers amount (#10785)

erigontech · Jun 21, 2024 · 847d786 · 847d786
1 parent c19b034
commit 847d786
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/erigon-lib/downloader/downloadercfg/downloadercfg.go b/erigon-lib/downloader/downloadercfg/downloadercfg.go
@@ -17,6 +17,7 @@
 package downloadercfg
 
 import (
+ "github.com/ledgerwatch/erigon-lib/common/dbg"
  "net"
  "net/url"
  "os"
@@ -65,7 +66,7 @@ func Default() *torrent.ClientConfig {
  // better don't increase because erigon periodically producing "new seedable files" - and adding them to downloader.
  // it must not impact chain tip sync - so, limit resources to minimum by default.
  // but when downloader is started as a separated process - rise it to max
- //torrentConfig.PieceHashersPerTorrent = cmp.Max(1, runtime.NumCPU()-1)
+ torrentConfig.PieceHashersPerTorrent = dbg.EnvInt("DL_HASHERS", min(16, max(2, runtime.NumCPU()-2)))
 
  torrentConfig.MinDialTimeout = 6 * time.Second //default: 3s
  torrentConfig.HandshakesTimeout = 8 * time.Second //default: 4s