diff --git a/src/consts.jl b/src/consts.jl
index b0864652..98db1f73 100644
--- a/src/consts.jl
+++ b/src/consts.jl
@@ -21,7 +21,7 @@ const DEFAULT_CONNECT_ARGS = (
     headers = true,
     nkey = nothing
 )
-const OUTBOX_SIZE = 1000000
+const OUTBOX_SIZE = 10000000
 const SOCKET_CONNECT_DELAYS = Base.ExponentialBackOff(n=1000, first_delay=0.5, max_delay=1)
 const SUBSCRIPTION_CHANNEL_SIZE = 10000
 
diff --git a/test/benchmarks.jl b/test/benchmarks.jl
index 40e61bdd..a89a4478 100644
--- a/test/benchmarks.jl
+++ b/test/benchmarks.jl
@@ -123,4 +123,21 @@ end
     unsubscribe(sub; connection)
     @info "$counter requests / second."
     NATS.status()
+end
+
+@testset "Publisher benchmark." begin
+    connection = NATS.connect(async_handlers = false, default = false)
+
+    tm = Timer(1.0)
+    counter = 0
+    while isopen(tm)
+        if Base.n_avail(connection.outbox) > 5000
+            sleep(0.001)
+            continue
+        end
+        publish("zxc"; payload = "Hello world!!!!!", connection)
+        counter = counter + 1
+    end
+
+    @info "Published $counter messages."
 end
\ No newline at end of file