Changeset 57f70ab

Timestamp:

May 13, 2021, 3:47:26 PM (3 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

8cd5434

Parents:

a9172b5

Message:

New main now uses proper define.
+ tweak to loop count

File:

• libcfa/src/concurrency/kernel.cfa (modified) (5 diffs)

libcfa/src/concurrency/kernel.cfa

@@ -182 +182 @@
                 MAIN_LOOP:
                 for() {
-                        #if 1
+                        #define OLD_MAIN 1
+                        #if OLD_MAIN
                         // Check if there is pending io
                         __maybe_io_drain( this );
@@ -262 +263 @@
 
                         #else
-
+                                #warning new kernel loop
                         SEARCH: {
                                 /* paranoid */ verify( ! __preemption_enabled() );
@@ -277 +278 @@
 
                                 // Spin a little on I/O, just in case
-                                for(25) {
+                                        for(5) {
                                         __maybe_io_drain( this );
                                         readyThread = pop_fast( this->cltr );
@@ -284 +285 @@
 
                                 // no luck, try stealing a few times
-                                for(25) {
+                                        for(5) {
                                         if( __maybe_io_drain( this ) ) {
                                                 readyThread = pop_fast( this->cltr );
@@ -867 +868 @@
                 unsigned tail = *ctx->cq.tail;
                 if(head == tail) return false;
+                #if OLD_MAIN
                 ready_schedule_lock();
                 ret = __cfa_io_drain( proc );
                 ready_schedule_unlock();
+                #else
+                        ret = __cfa_io_drain( proc );
+        #endif
         #endif
         return ret;