Changeset 637 for trunk/kernel/syscalls/sys_trace.c

Timestamp:

Jul 18, 2019, 2:06:55 PM (5 years ago)

Author:

alain

Message:

Introduce the non-standard pthread_parallel_create() system call
and re-write the <fft> and <sort> applications to improve the
intrinsic paralelism in applications.

File:

• trunk/kernel/syscalls/sys_trace.c (modified) (3 diffs)

trunk/kernel/syscalls/sys_trace.c

@@ -2 +2 @@
  * sys_trace.c - activate / desactivate the context switches trace for a given core
  * 
- * Author    Alain Greiner (c) (2016,2017,2018)
+ * Author    Alain Greiner (c) (2016,2017,2018,2019)
  *
  * Copyright (c) UPMC Sorbonne Universites
@@ -40 +40 @@
     process_t * process = this->process;
 
+#if (DEBUG_SYS_TRACE || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_start = hal_get_cycles();
+#endif
+
 #if DEBUG_SYS_TRACE
-uint64_t    tm_start;
-uint64_t    tm_end;
-tm_start = hal_get_cycles();
 if( DEBUG_SYS_TRACE < tm_start )
-printk("\n[DBG] %s : thread %d enter / process %x / cycle = %d\n",
-__FUNCTION__, this, this->process->pid, (uint32_t)tm_start );
+printk("\n[%s] thread[%x,%x] enters / cycle = %d\n",
+__FUNCTION__, this->process->pid, this->trdid, (uint32_t)tm_start );
 #endif
 
     // check cluster identifier
-    if( cluster_is_undefined( cxy ) )
+    if( cluster_is_active( cxy ) == false )
     {
 
@@ -85 +86 @@
     hal_fence();
 
-#if DEBUG_SYS_TRACE
-tm_end = hal_get_cycles();
-if( DEBUG_SYS_TRACE < tm_end )
-printk("\n[DBG] %s : thread %x exit / process %x / cost = %d / cycle %d\n",
-__FUNCTION__, this, this->process->pid, (uint32_t)(tm_end - tm_start) , (uint32_t)tm_end );
+#if (DEBUG_SYS_TRACE || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_end = hal_get_cycles();
 #endif
 
+#if DEBUG_SYS_TRACE
+if( DEBUG_SYS_TRACE < tm_end )
+printk("\n[%s] thread[%x,%x] exit / cycle %d\n",
+__FUNCTION__, this->process->pid, this->trdid, (uint32_t)tm_end );
+#endif
+
+#if CONFIG_INSTRUMENTATION_SYSCALLS
+hal_atomic_add( &syscalls_cumul_cost[SYS_TRACE] , tm_end - tm_start );
+hal_atomic_add( &syscalls_occurences[SYS_TRACE] , 1 );
+#endif
     return 0;