Performance analysis on loop unrolling.

1 files changed, 30 insertions, 47 deletions

diff --git a/ttt.jai b/ttt.jai
index 22a0f42..15b5a66 100644
--- a/ttt.jai
+++ b/ttt.jai
@@ -481,26 +481,26 @@ update_total_times :: (db: *Database) {
     // LLVM     14.5        5.0
     // X64      132.4       124.4
     //
-    totals: []s64 = db.total_times;
-    for db.tasks {
-        times : []s64 = it.times;
-        totals[0] = add(totals[0], times[0]);
-        totals[1] = add(totals[1], times[1]);
-        totals[2] = add(totals[2], times[2]);
-        totals[3] = add(totals[3], times[3]);
-        totals[4] = add(totals[4], times[4]);
-        totals[5] = add(totals[5], times[5]);
-        totals[6] = add(totals[6], times[6]);
-    }
+    // totals: []s64 = db.total_times;
+    // for db.tasks {
+        // times : []s64 = it.times;
+        // totals[0] = add(totals[0], times[0]);
+        // totals[1] = add(totals[1], times[1]);
+        // totals[2] = add(totals[2], times[2]);
+        // totals[3] = add(totals[3], times[3]);
+        // totals[4] = add(totals[4], times[4]);
+        // totals[5] = add(totals[5], times[5]);
+        // totals[6] = add(totals[6], times[6]);
+    // }
 
 
     //          I5-2550K    R3550H      (ns/entry)
     // LLVM     11.2        11.7
-    // X64      119.9       124.5
+    // X64      118.2       124.5
     //
-    for db.tasks {
-        for *total: db.total_times {
-            <<total = add(<<total, it.times[it_index]);
+    for task: db.tasks {
+        for *total, index: db.total_times {
+            <<total = add(<<total, task.times[index]);
         }
     }
 
@@ -509,54 +509,37 @@ update_total_times :: (db: *Database) {
     // LLVM     11.5        12.1
     // X64      126.6       132.8
     //
-    for db.tasks {
-        times : []s64 = it.times;
-        for *total: db.total_times {
-            <<total = add(<<total, times[it_index]);
-        }
-    }
+    // for db.tasks {
+        // times : []s64 = it.times;
+        // for *total: db.total_times {
+            // <<total = add(<<total, times[it_index]);
+        // }
+    // }
 
 
     //          I5-2550K    R3550H      (ns/entry)
     // LLVM     11.6        11.2
     // X64      132.3       133.8
     //
-    for db.tasks {
-        times : []s64 = it.times;
-        for 0..db.total_times.count-1 {
-            db.total_times[it] = add(db.total_times[it], times[it]);
-        }
-    }
+    // for db.tasks {
+        // times : []s64 = it.times;
+        // for 0..db.total_times.count-1 {
+            // db.total_times[it] = add(db.total_times[it], times[it]);
+        // }
+    // }
 
 
     //          I5-2550K    R3550H      (ns/entry)
     // LLVM     11.8        10.2
     // X64      134.4       132.5
     //
-    totals: []s64 = db.total_times;
-    for db.tasks {
-        times : []s64 = it.times;
-        for 0..totals.count-1 {
-            totals[it] = add(totals[it], times[it]);
-        }
-    }
-
-
-    // unroll_week :: (code: string) -> string {
-        // builder: String_Builder;
-        // defer reset(*builder);
-        // for 0..6 {
-            // print_to_builder(*builder, code, it);
-        // }
-        // return builder_to_string(*builder);
-    // }
-// 
     // totals: []s64 = db.total_times;
     // for db.tasks {
         // times : []s64 = it.times;
-        // #insert #run unroll_week("totals[%1] = add(totals[%1], times[%1]);");
+        // for 0..totals.count-1 {
+            // totals[it] = add(totals[it], times[it]);
+        // }
     // }
-
     
 
     stop := current_time_monotonic();