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Links 1 through 10 of 46 by Ken Robson tagged solaris

Solaris is one of the most stable operating systems available... but lets face it, stuff happens. Solaris does panic, but I want everyone to be clear, a "panic", despite the seemingly contradictory name, is by its nature a controlled event. When the kernel encounters behavior that is uncorrectable and will cause irreparable harm to the running system or, even worse, corrupt data, the system will voluntarily tap out using the panic system call to get the system down quickly, hopefully leaving a core dump in its wake for post-mortem analysis.

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A NUMA machine is composed of nodes that contain some kind of hardware resource: processors, memory, devices.. These nodes are connected through an interconnect hardware that allows each node to access every other node's memory transparently, forming a si

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Your end users complain that your Web pages load slowly and they don't intend to wait! So you need to dust off your system topology diagram and understand which servers user traffic travels. Then you need to determine if CPUs are busy on these systems, if

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Every filesystem must keep track of two basic things: where your data is, and where the free space is. In principle, keeping track of free space is not strictly necessary: every block is either allocated or free, so the free space can be computed by assum

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Liberating applications from infrastructure By liberating applications from underlying operating systems, Trigence application virtualization technology creates a new IT landscape. Trigence’s application virtualization technology packages applications a

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Every time I write a DTrace script I learn something new. This time is was all about exploring a user process problem and using copyin(). Take a look at bug 6523693 (mountd core dump in nfsauth_prog on S10). I could have added some debugging to the mountd

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Despite its dominance, object-oriented computation has received scant attention from the
architecture community. We propose a novel memory architecture that supports objects and
garbage collection (GC). Our architecture is co-designed with a Java Virtua

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The escalating costs associated with managing vast networks of servers and software components are forcing organizations to find new ways to reduce IT infrastructure costs and better manage end user service levels. While server consolidation and virtualiz

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This paper presents a general methodology for scheduling jobs in soft real-time systems, where the utility of completing each job decreases over time. This scheduling problem is known to be NP-hard, requiring a heuristic solution to operate in real-time.

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Dynamic Tracing (DTrace) in the Solaris 10 OS is too complex to cover in just one short article. Here the author explores how DTrace can be used to solve one real-life problem. The article follows the reasoning used -- the "if", the "when", and the "why"

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