From cd45de5778b2fe8c1d4166ccc95a79a526479414 Mon Sep 17 00:00:00 2001
From: warner <>
Date: Tue, 4 Sep 2007 16:26:33 +0000
Subject: [PATCH] add some notes about memory usage per-library

[Imported from Trac: page MemoryFootprint, version 1]
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 MemoryFootprint.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 MemoryFootprint.md

diff --git a/MemoryFootprint.md b/MemoryFootprint.md
new file mode 100644
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@@ -0,0 +1,12 @@
+We try to keep the Tahoe memory footprint low by continuously monitoring the
+memory consumed by common operations like upload and download.
+
+For each currently active upload or download, we never handle more than a
+single segment of data at a time. This serves to keep the data-driven
+footprint down to something like 4MB or 5MB per active upload/download.
+
+Some other notes on memory footprint:
+
+ * importing sqlite (for the share-lease database) raised the static
+   footprint by 6MB, going from 24.3MB to 31.5MB (as evidenced by the munin
+   graph from 8/29/07 to 9/2/07).