debug logging fix

src/core/ext/lb_policy/round_robin/round_robin.c

@@ -306,8 +306,10 @@ static void start_picking(grpc_exec_ctx *exec_ctx, round_robin_lb_policy *p) {
   size_t i;
   p->started_picking = 1;
 
-  gpr_log(GPR_DEBUG, "LB_POLICY: p=%p num_subchannels=%d", p,
-          p->num_subchannels);
+  if (grpc_lb_round_robin_trace) {
+    gpr_log(GPR_DEBUG, "LB_POLICY: p=%p num_subchannels=%d", p,
+            p->num_subchannels);
+  }
 
   for (i = 0; i < p->num_subchannels; i++) {
     subchannel_data *sd = p->subchannels[i];

src/core/ext/transport/chttp2/transport/chttp2_transport.c

@@ -776,7 +776,8 @@ void grpc_chttp2_add_incoming_goaway(
     grpc_exec_ctx *exec_ctx, grpc_chttp2_transport_global *transport_global,
     uint32_t goaway_error, gpr_slice goaway_text) {
   char *msg = gpr_dump_slice(goaway_text, GPR_DUMP_HEX | GPR_DUMP_ASCII);
-  gpr_log(GPR_DEBUG, "got goaway [%d]: %s", goaway_error, msg);
+  GRPC_CHTTP2_IF_TRACING(gpr_log(
+      GPR_DEBUG, "got goaway [%d]: %s", goaway_error, msg));
   gpr_free(msg);
   gpr_slice_unref(goaway_text);
   transport_global->seen_goaway = 1;

src/core/ext/transport/chttp2/transport/hpack_encoder.c

@@ -63,6 +63,8 @@
 /* don't consider adding anything bigger than this to the hpack table */
 #define MAX_DECODER_SPACE_USAGE 512
 
+extern int grpc_http_trace;
+
 typedef struct {
   int is_first_frame;
   /* number of bytes in 'output' when we started the frame - used to calculate
@@ -532,7 +534,9 @@ void grpc_chttp2_hpack_compressor_set_max_table_size(
     }
   }
   c->advertise_table_size_change = 1;
-  gpr_log(GPR_DEBUG, "set max table size from encoder to %d", max_table_size);
+  if (grpc_http_trace) {
+    gpr_log(GPR_DEBUG, "set max table size from encoder to %d", max_table_size);
+  }
 }
 
 void grpc_chttp2_encode_header(grpc_chttp2_hpack_compressor *c,

src/core/ext/transport/chttp2/transport/hpack_table.c

@@ -253,7 +253,9 @@ void grpc_chttp2_hptbl_set_max_bytes(grpc_chttp2_hptbl *tbl,
   if (tbl->max_bytes == max_bytes) {
     return;
   }
-  gpr_log(GPR_DEBUG, "Update hpack parser max size to %d", max_bytes);
+  if (grpc_http_trace) {
+    gpr_log(GPR_DEBUG, "Update hpack parser max size to %d", max_bytes);
+  }
   while (tbl->mem_used > max_bytes) {
     evict1(tbl);
   }