Changeset 1273:e831cabceab0 in freeDiameter for extensions

Timestamp:

May 23, 2014, 11:08:04 PM (10 years ago)

Author:

Thomas Klausner <tk@giga.or.at>

Branch:

default

Phase:

public

Message:

Switch to logarithmic scaling.

File:

• extensions/rt_load_balance/rt_load_balance.c (modified) (2 diffs)

extensions/rt_load_balance/rt_load_balance.c

@@ -3 +3 @@
 * Author: Thomas Klausner <tk@giga.or.at>                                                                *
 *                                                                                                        *
-* Copyright (c) 2013, Thomas Klausner                                                                    *
+* Copyright (c) 2013, 2014 Thomas Klausner                                                               *
 * All rights reserved.                                                                                   *
 *                                                                                                        *
@@ -59 +59 @@
                 CHECK_FCT(fd_peer_get_load_pending(peer, &to_receive, &to_send));
                 load = to_receive + to_send;
-                score = cand->score;
-                if ((cand->score > 0) && (load >= cand->score))
-                        cand->score = 1;
-                else
-                        cand->score -= load;
+                /* other routing mechanisms need to add to the
+                 * appropriate entries so their base value is high
+                 * enough that they are considered */
+
+                /* logarithmic scaling */
+                int load_log = 0;
+                while (load > 0) {
+                    load_log++;
+                    load /= 2;
+                }
+                cand->score -= load_log;
                 TRACE_DEBUG(FULL, "evaluated peer `%.*s', score was %d, now %d", (int)cand->diamidlen, cand->diamid, score, cand->score);
         }