add benchmark to app. TODO: test benchmark.

APP_Framework/Applications/benchmark/support/benchmark.c

@@ -143,7 +143,7 @@ pthread_t benchmark_task;
 static int embenchmark(void) {
   pthread_attr_t attr;
   attr.schedparam.sched_priority = 25;
-  attr.stacksize = 5120;
+  attr.stacksize = 8192;
 
   PrivTaskCreate(&benchmark_task, &attr, run_benchmark, NULL);
   // run_benchmark(NULL);

Ubiquitous/XiZi_IIoT/board/xidatong-riscv64/link.lds

@@ -10,7 +10,7 @@
 * See the Mulan PSL v2 for more details.
 */
 
-__STACKSIZE__ = 5120;
+__STACKSIZE__ = 8192;
 OUTPUT_ARCH( "riscv" )
 MEMORY
 {