Changeset 637 for trunk/kernel/syscalls/sys_place_fork.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_place_fork.c (modified) (2 diffs)

trunk/kernel/syscalls/sys_place_fork.c

@@ -40 +40 @@
     process_t * process = this->process;
 
+#if (DEBUG_SYS_PLACE_FORK || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_start = hal_get_cycles();
+#endif
+
+#if DEBUG_SYS_PLACE_FORK
+if( DEBUG_SYS_PLACE_FORK < tm_start )
+printk("\n[%s] thread[%x,%x] enter / cxy %x / cycle %d\n",
+__FUNCTION__, process->pid, this->trdid, cxy, (uint32_t)tm_start );
+#endif
+
     // check cxy argument
-    if( cluster_is_undefined( cxy ) )
+    if( cluster_is_active( cxy ) == false )
     {
         
@@ -56 +66 @@
     this->fork_cxy  = cxy;
 
+#if (DEBUG_SYS_PLACE_FORK || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_end = hal_get_cycles();
+#endif
+
+#if DEBUG_SYS_PLACE_FORK
+if( DEBUG_SYS_PLACE_FORK < tm_end )
+printk("\n[%s] thread[%x,%x] exit / cycle %d\n",
+__FUNCTION__ , process->pid, this->trdid, (uint32_t)tm_end );
+#endif
+
+#if CONFIG_INSTRUMENTATION_SYSCALLS
+hal_atomic_add( &syscalls_cumul_cost[SYS_PLACE_FORK] , tm_end - tm_start );
+hal_atomic_add( &syscalls_occurences[SYS_PLACE_FORK] , 1 );
+#endif
+
         return 0;