From 32fa6d2d25bfa693b60832c3ef64cf72a6d89a78 Mon Sep 17 00:00:00 2001
From: Jethro Grassie <jtg@xtrabass.com>
Date: Sat, 20 Jun 2020 16:50:27 -0400
Subject: [PATCH] reduce realloc for submissions

---
 src/pool.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/pool.c b/src/pool.c
index f8a4ce4..a571e8e 100644
--- a/src/pool.c
+++ b/src/pool.c
@@ -3045,9 +3045,12 @@ miner_on_submit(json_object *message, client_t *client)
             return;
         }
     }
-    job->submissions = realloc((void*)submissions,
-            sizeof(uint128_t) * ++job->submissions_count);
-    job->submissions[job->submissions_count-1] = sub;
+    if (!fmod(job->submissions_count, 10))
+    {
+        job->submissions = realloc((void*)submissions,
+                10*sizeof(uint128_t)+job->submissions_count*sizeof(uint128_t));
+    }
+    job->submissions[job->submissions_count++] = sub;
 
     /* And the supplied nonce */
     p = block;