The following reports, which we prepared for Red Hat, Inc. and Intel Corp., compare the performance of three servers, a Red Hat Enterprise Linux AS 3 server on a Dual-Core Intel Xeon processor 7140M-based (3.4 GHz) server, a Red Hat Enterprise Linux AS 3 guest on Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server, and a Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server on four different workloads.

SPEC CPU2006 SPECfp_rate_base performance on Red Hat Enterprise Linux 5.1 and 3 AS Intel-based servers SPEC CPU2006 is an industry-standard benchmark created by the Standard Performance Evaluation Corporation to measure a system's floating-point processor performance. We measured the SPECfp_rate_base performance of three servers: a Red Hat Enterprise Linux AS 3 server on a Dual-Core Intel Xeon processor 7140M-based (3.4 GHz) server, a Red Hat Enterprise Linux AS 3 guest on Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server, and a Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server.

SPECjbb2005 performance on Red Hat Enterprise Linux 5.1 and 3 AS Intel-based servers SPECjbb2005 is an industry-standard benchmark created by the Standard Performance Evaluation Corporation to measure a server's Java performance. We measured the SPECjbb2005 performance of three servers: a Red Hat Enterprise Linux AS 3 server on a Dual-Core Intel Xeon processor 7140M-based (3.4 GHz) server, a Red Hat Enterprise Linux AS 3 guest on Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server, and a Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server.

SPEC CPU2006 SPECint_rate_base performance on Red Hat Enterprise Linux 5.1 and 3 AS Intel-based servers  SPEC CPU2006 SPECint_rate_base is an industry-standard benchmark created by the Standard Performance Evaluation Corporation to provide a comparative measure of compute-intensive integer performance. We used it to evaluate the performance of three servers: a Red Hat Enterprise Linux AS 3 server on a Dual-Core Intel Xeon processor 7140M-based (3.4 GHz) server, a Red Hat Enterprise Linux AS 3 guest on Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server, and a Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server.

Linpack performance on Red Hat Enterprise Linux 5.1 and 3 AS Intel-based servers  Linpack is an industry-standard benchmark that solves linear equations and uses the speed of the system under test at that task as a measure of the system's floating point performance. We used Linpack to evaluate the performance of three servers: a Red Hat Enterprise Linux AS 3 server on a Dual-Core Intel Xeon processor 7140M-based (3.4 GHz) server, a Red Hat Enterprise Linux AS 3 guest on Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server, and a Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server.

We gave the following presentation at Fall IDF in San Francisco on September 19, 2007:

Comparative performance test Red Hat Enterprise Linux 5.1 and Red Hat Enterprise Linux 3 AS on Intel-based servers Red Hat, Inc. and Intel Corp. commissioned us to compare the performance of three servers, a Red Hat Enterprise Linux AS 3 server on a Dual-Core Intel Xeon processor 7140M-based (3.4 GHz) server, a Red Hat Enterprise Linux AS 3 guest on Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server, and a Red Hat Enterprise Linux 5.1 server on a Quad-Core Intel Xeon processor X7350-based (2.93 GHz) server on three different workloads. This presentation, which we gave at Fall IDF in San Francisco on September 19, 2007, summarizes our findings.