Author: toad
Date: 2008-04-08 14:19:00 +0000 (Tue, 08 Apr 2008)
New Revision: 19072
Modified:
trunk/freenet/src/freenet/client/FECCodec.java
Log:
Increase redundancy from 128 -> 192 to 128 -> 255.
This will increase the cost of an upload by 33%, but inserts are pretty fast
right now.
We expect it to increase reliability significantly. Redundancy at the FEC level
is far more efficient than redundancy at the simple block duplication level.
Modified: trunk/freenet/src/freenet/client/FECCodec.java
===================================================================
--- trunk/freenet/src/freenet/client/FECCodec.java 2008-04-08 11:17:40 UTC
(rev 19071)
+++ trunk/freenet/src/freenet/client/FECCodec.java 2008-04-08 14:19:00 UTC
(rev 19072)
@@ -65,9 +65,8 @@
if(splitfileType == Metadata.SPLITFILE_NONREDUNDANT)
return null;
if(splitfileType == Metadata.SPLITFILE_ONION_STANDARD) {
- int checkBlocks = (dataBlocks >> 1);
- if((dataBlocks & 1) == 1)
- checkBlocks++;
+ int checkBlocks = dataBlocks;
+ if(dataBlocks == 128) checkBlocks--; // Stay within the
8-bit code range, speeds things up 4x
return StandardOnionFECCodec.getInstance(dataBlocks,
checkBlocks, executor);
}
else
