Computer Architecture Today

Informing the broad computing community about current activities, advances and future directions in computer architecture.
Current status, needs, and challenges in Heterogeneous and Composable Memory from the HCM workshop (HPCA’23)

Current status, needs, and challenges in Heterogeneous and Composable Memory from the HCM workshop (HPCA’23)

Introduction Memory systems are evolving into heterogeneous and composable architectures. Heterogeneous and Composable Memory (HCM) offers a feasible solution for terabyte- or petabyte-scale systems, addressing the performance and efficiency demands of emerging...

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ASPLOS’23 Program Chairs’ Recap

ASPLOS’23 Program Chairs’ Recap

For 2023, ASPLOS embarked on a new multi-deadline review model. Multiple deadlines are meant to encourage authors to submit their papers when ready, to facilitate the selection of some papers for revision and to distribute the reviewer workload better. In this post,...

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Looking Beyond Microarchitectural Side Channels

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IISWC 25th Anniversary

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Fast memcpy, A System Design

When I worked at Google, fleet-wide profiling revealed that 25-35% of all CPU time was spent just moving bytes around: memcpy, strcmp, copying between user and kernel buffers in network and disk I/O, hidden copy-on-write in soft page faults, checksumming, compressing,...

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