From ddec9cf2faa774fd12a3b9cc0f1414198e52baa8 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Tue, 12 Dec 2017 23:06:13 +0100
Subject: [PATCH] only run crypto worker on half of available threads

---
 src/crypto/cryptoApi.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/crypto/cryptoApi.ts b/src/crypto/cryptoApi.ts
index 9a21d13a9..12b1c9708 100644
--- a/src/crypto/cryptoApi.ts
+++ b/src/crypto/cryptoApi.ts
@@ -203,6 +203,7 @@ export class CryptoApi {
       // only works in the browser
       // tslint:disable-next-line:no-string-literal
       concurrency = (navigator as any)["hardwareConcurrency"];
+      concurrency = Math.max(1, Math.ceil(concurrency / 2));
     } catch (e) {
       // ignore
     }