From 7243f95380d71b914db340bdbdf02e76029e2023 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 30 Jul 2020 10:17:36 +0100
Subject: [PATCH] [thin_check (rust)] Drop nr threads down to 4

We get very little benefit from threads atm.  Need to improve IO handling first.
---
 src/thin/check.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/thin/check.rs b/src/thin/check.rs
index 98b343d..90d9703 100644
--- a/src/thin/check.rs
+++ b/src/thin/check.rs
@@ -242,7 +242,7 @@ impl NodeVisitor<ValueU64> for TopLevelVisitor {
             w.engine.read_many(&mut blocks)?;
 
 	    // FIXME: with a thread pool we need to return errors another way.
-            let nr_workers = 16;
+            let nr_workers = 4;
             let pool = ThreadPool::new(nr_workers);
 
             let mut n = 0;