From: Brian Warner <warner@allmydata.com>
Date: Wed, 16 Apr 2008 23:29:53 +0000 (-0700)
Subject: misc/sizes.py: update to match current defaults: 128KiB segsize, 3-of-10
X-Git-Tag: allmydata-tahoe-1.1.0~239
X-Git-Url: https://git.rkrishnan.org/architecture.txt?a=commitdiff_plain;h=5afc26f1d138fc5fd52b3c8bf4abfcd886249541;p=tahoe-lafs%2Ftahoe-lafs.git

misc/sizes.py: update to match current defaults: 128KiB segsize, 3-of-10
---

diff --git a/misc/sizes.py b/misc/sizes.py
index a101538f..b55d9491 100644
--- a/misc/sizes.py
+++ b/misc/sizes.py
@@ -37,15 +37,15 @@ PiB=1024*TiB
 
 class Sizes:
     def __init__(self, mode, file_size, arity=2):
-        MAX_SEGSIZE = 2*MiB
+        MAX_SEGSIZE = 128*KiB
         self.mode = mode
         self.file_size = file_size
         self.seg_size = seg_size = 1.0 * min(MAX_SEGSIZE, file_size)
         self.num_segs = num_segs = math.ceil(file_size / seg_size)
         self.num_blocks = num_blocks = num_segs
 
-        self.num_shares = num_shares = 100
-        self.shares_needed = shares_needed = 25
+        self.num_shares = num_shares = 10
+        self.shares_needed = shares_needed = 3
 
         self.block_size = block_size = seg_size / shares_needed
         self.share_size = share_size = block_size * num_blocks