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HMMer 2.3.3
HMMer is another application that demonstrates the advantages of Xserve G5
with Velocity Engine for processor-intensive scientific analysis. HMMer is a genome
sequence–matching application that uses Hidden Markov Models (HMMs) to identify
similarities in genetic structures. The core routines of HMMer repeatedly perform the
same operation on large amounts of data. To test the performance of the HMMer
code, Apple searched for an HMM created from a 358-residue sequence in the protein
databank (PDB) and measured the time to search the entire PDB.
The dual 2GHz Xserve G5 performed the HMMer search up to 33 percent faster than the
3.2GHz Xeon-based servers and 69 percent faster than the 2GHz Opteron-based server.
Networking Throughput
To minimize bottlenecks and ensure maximum data throughput, Xserve G5 features
a high-performance I/O architecture optimized for server tasks.
NetBench SMB
Xserve G5 provides the best balance of processor, network, and disk performance—
critical for delivering file services to large numbers of network clients.
With more than 12 NetBench clients, Xserve G5 with Mac OS X Server delivers Windows
file services significantly faster than the Xeon-based server with Windows Server 2003,
and its performance remains high even as clients are added to the network.
14 81216202428
0
40
80
12 0
160
200
Simultaneous clients
Megabits per second
Xserve G5
with Mac OS X Server
IBM eServer x335
with Windows Server 2003
Xserve G5
Dual 2GHz PowerPC G5
Dell PowerEdge 1750
Dual 3.2GHz Xeon
IBM eServer x335
Dual 3.2GHz Xeon
IBM eServer x325
Dual 2GHz Opteron
33% faster
Baseline
69% faster
Percent faster than Opteron-based system
27% faster
9
Technology Overview
Xserve G5
HMMer: Genome Sequence Matching
NetBench SMB:Windows File Serving