IRIX 6.5.5

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Software Enhancements Delivered by IRIX 6.5.5m

Embedded Support Partner, which is an integral part of the IRIX operating system, provides system administrators with a way to monitor various events (such as system events, changes in system hardware and software configuration, and system performance) that can occur on their systems. Embedded Support Partner consists of a set of daemons that perform the monitoring activities. These include an event monitoring daemon (eventmond), an event management daemon (espemd), and a database daemon (espdbd). Embedded Support Partner provides single-system monitoring capabilities as a standard part of IRIX. Optionally, Embedded Support Partner can be configured to receive event and system configuration data from all systems contained within a system group. Embedded Support Partner is controlled through a Web browser that is connected to the Configurable Web Server included in the Embedded Support Partner package.

Support for the version 2 XFS® directory format enables to choose a filesystem block size to match the distribution of data file sizes without adversely affecting directory operation performance. The directory format is specified with the -n parameter of the mkfs command.

SCSL is widely used in scientific and technical compute-intensive applications and is intended to be a follow on product to Challengecomplib on all supported IRIX platforms at the next major IRIX release. Features such as convolution/correlation and filter routines to the Signal Processing functionality previously available only in Challengecomplib are now incorporated into the SCSL version 1.2 release. Additional IRIX features added to SCSL for this release are improved ordering techniques for the sparse linear solvers, performance enhancements for the MIPS® R12000™ processor, rollup bug fixes from SCSL 1.1, and all other Challengecomplib 3.1 functionality.

Together with Embedded Support Partner, the base performance monitoring services in the pcp_eoe product have been extended to include an inference engine for evaluating rules about system-level performance and raising alarms. Also provided is a parameterized set of standard rules that can be selectively enabled and tuned to meet local requirements and to choose alternative alarm notification mechanisms. These features are of most value to operations staff running production IRIX systems.

Two new options were added to the miser_create_cpuset command. These options allow additional restrictions on memory assignment for processes running on a cpuset.

Software Enhancements Delivered by IRIX 6.5.5f

  • IRIX 6.5.5f contains all enhancements delivered in 6.5.5m as well as support for CXFS 1.0, which provides a shared filesystem that includes the following features:
    • High resiliency and availability
    • Reduced storage costs
    • Scalable high performance
    • Streamlined LAN-free backups
    • Each CXFS host has a direct Fibre Channel path to the shared disks, which provides near-local file performance, even though the data on the disks is shared among multiple IRIX hosts. Each CXFS host uses disk drivers to read and write the disks directly. CXFS coordinates this shared disk access. This differs from a networked filesystem model, wherein the data typically passes through a server, then over a TCP/IP-Ethernet network to the client. CXFS removes the server and network bottlenecks for the shared data paths.
  • Included in the IRIX 6.5.5 release package is an update to the layered applications. The Applications CD includes changes to the following software:
    • Netscape Communicator® 4.61 (upgrade)
    • CosmoPlayer 2.1.1 (release)
    • Netscape® FastTrack Server 3.03 (contains an updated version of the Administration Server 3.52)


Next release

IRIX 6.5.6

Previous release

IRIX 6.5.4

See Also