Scheme uses garbage collection for heap memory management. Ideally, garbage collectors should be able to reclaim all dead objects, i.e. objects that will not be used in future. However, garbage collectors collect only those dead objects that are not reachable from any program variable. Dead objects that are reachable from program variables are not reclaimed. In this paper we describe our experi...

Advanced CMOS technologies have become highly susceptible to process, voltage, and temperature (PVT) variation. The standard approach for addressing this issue is to increase timing margin at the expense of power and performance. One approach to reclaim these losses relies on canary circuits [1] or sensors [2], which are simple to implement but cannot account for local variations. A more recent...

Middle-aged gay men in Manchester differentiate themselves through accounts of ‘friendship family’ from relating/kinship associated with heterosexuals and younger gay men. Based on interviews with 27 men aged 39–61, I explore narratives of friendship family. This critical space enables development/mobilisation of the resources of ageing ‘ageing capital’ – needed to reclaim self-worth in the fac...

We describe algorithms to scalably support durable subscriptions in a publish-subscribe system. Durable subscriptions are guaranteed exactly-once message delivery, despite periods of disconnection from the system. Our algorithms persistently log each message only once in the system, and can support administratively specified ’early-release’ policies that reclaim persistent storage in the presen...

congestion control, system area networks, SAN, InfiniBand, window control, rate control, ECN, I/O Interconnect System Area Networks (SANs) using linklevel flow control experience congestion spreading, where one bottleneck link causes traffic to block throughout the network. In this paper, an end-to-end congestion control scheme is proposed that avoids congestion spreading, delivers high through...

The suspend feature of the modern smart device practically suppresses the background segment cleaning of the log-structured file system. In this work, we develop Suspend-aware Segment Cleaning for the log-structured file system. We seamlessly integrate the segment cleaning into the suspend module of the smartphone OS so that the log-structured file system can reclaim the free segments without i...

Increasingly scientific discoveries are driven by analyses of massively distributed bulk data. This has led to the proliferation of high-end mass storage systems, storage area clusters and data centers as storage fabric elements for the Grid, offering excellent price/performance ratio and good storage speeds, but increasing maintenance and administrative costs. A promising alternative then, is ...

This work focuses on scenarios that require the continual storage of large amounts of data. Such systems require the ability to either continually increase the total storage space or reclaim existing contents. Traditional storage systems provide persistence for all stored objects to perpetuity, relegating object reclamation to applications. Our key insight is that not all of the new data are eq...

Stress in doctors is a product of the interaction between the demanding nature of their work and their often obsessive, conscientious and committed personalities. In the face of extremely demanding work, a subjective lack of control and insufficient rewards are powerful sources of stress in doctors. If demands continue to rise and adjustments are not made, then inevitably a "correction" will oc...

The right-wing attack against critical race theory is the latest manufactured panic designed to whip up supporters of a party beholden Donald Trump. Since late 2020, hundreds measures have been introduced across U.S. ban antiracism education, theory, 1619 Project, and any understanding racism as systemic embedded in history law. While an understandable reaction educators declare that they are n...