From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: From: erik quanstrom Date: Thu, 11 Oct 2007 22:34:21 -0400 To: 9fans@cse.psu.edu MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: [9fans] man venti problems Topicbox-Message-UUID: ce64dfda-ead2-11e9-9d60-3106f5b1d025 this particular section of the venti man page formats particularly poorly unless man is given the -P option. (maximum 512MB, 2\s-2\u32\d\s+2 bits). .PP The bloom filter should be sized so that .I nhash \(mu .I nblock \(<= 0.7 \(mu .IR b , where .I nblock is the expected number of blocks stored on the server and .I b is the bitmap size in bits. The false positive rate of the bloom filter when sized this way is approximately 2\s-2\u\-\fInblock\fR\d\s+2. .I Nhash - erik