[tor-commits] [tor/master] Change UseOptimisticData default to 1.

[nickm@xxxxxxxxxxxxxx]

commit 4f37919fa1fd66daf2913203af3f51be60771fcb
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Mon Apr 18 13:55:23 2016 -0400

    Change UseOptimisticData default to 1.
    
    This lets us use optimistic data for downloading our initial
    consensus.
    
    Closes ticket 18815.
---
 changes/bug18815    | 3 +++
 src/or/circuituse.c | 7 ++++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/changes/bug18815 b/changes/bug18815
new file mode 100644
index 0000000..cb504b2
--- /dev/null
+++ b/changes/bug18815
@@ -0,0 +1,3 @@
+  o Minor features (performance):
+    - When fetching a consensus for the first time, use optimistic data.
+      This saves a round-trip during startup. Closes ticket 18815.
diff --git a/src/or/circuituse.c b/src/or/circuituse.c
index 31003ea..e4eef2c 100644
--- a/src/or/circuituse.c
+++ b/src/or/circuituse.c
@@ -2141,10 +2141,11 @@ optimistic_data_enabled(void)
 {
   const or_options_t *options = get_options();
   if (options->OptimisticData < 0) {
-    /* XXX023 consider having auto default to 1 rather than 0 before
-     * the 0.2.3 branch goes stable. See bug 3617. -RD */
+    /* Note: this default was 0 before #18815 was merged. We can't take the
+     * parameter out of the consensus until versions before that are all
+     * obsolete. */
     const int32_t enabled =
-      networkstatus_get_param(NULL, "UseOptimisticData", 0, 0, 1);
+      networkstatus_get_param(NULL, "UseOptimisticData", /*default*/ 1, 0, 1);
     return (int)enabled;
   }
   return options->OptimisticData;



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