redis-benchmark: disable big buffer cleanup in hiredis context.

This new hiredis features allows us to reuse a previous context reader
buffer even if already very big in order to maximize performances with
big payloads (Usually hiredis re-creates buffers when they are too big
and unused in order to save memory).

1 files changed, 2 insertions, 0 deletions

diff --git a/src/redis-benchmark.c b/src/redis-benchmark.c
index 19eb49152..1be4c07d9 100644
--- a/src/redis-benchmark.c
+++ b/src/redis-benchmark.c
@@ -263,6 +263,8 @@ static client createClient(char *cmd, size_t len) {
             fprintf(stderr,"%s: %s\n",config.hostsocket,c->context->errstr);
         exit(1);
     }
+    /* Suppress hiredis cleanup of unused buffers for max speed. */
+    c->context->reader->maxbuf = 0;
     /* Queue N requests accordingly to the pipeline size. */
     c->obuf = sdsempty();
     for (j = 0; j < config.pipeline; j++)