Bump default GC threshold to 1GB

In our testing we observe no meaningfully different peak memory (carrier size) limit and 18 to 65% lower tail latencies with small messages, and teen % lower with 50 MB messages. Throughput is single digit % higher. CPU usage was not meaningfully different on a four core host. References rabbitmq/rabbitmq-common#343.
2019-12-20 08:02:51 +03:00 · 2019-12-20 08:02:51 +03:00 · 7556580a51
parent 266a10c83b
commit 7556580a51
1 changed files with 2 additions and 2 deletions
--- a/4
+++ b/4
@ -130,8 +130,8 @@ define PROJECT_ENV
 	    {channel_tick_interval, 60000},
 	    %% Default max message size is 128 MB
 	    {max_message_size, 134217728},
-	    %% Default is ~ 1MB
-	    {gc_threshold, 1000000}
+	    %% Socket writer will run GC every 1 GB of outgoing data
+	    {gc_threshold, 1000000000}
 	  ]
 endef