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Reinventing Performance Testing: New Architectures

Alex Podelko

Auto-scaling is often presented as a panacea for performance problems, but, even if it is properly implemented (which is, of course, better to be tested), it just assigns a price tag for performance. The answer to this challenge is service virtualization, which allows simulating real services during testing without actual access.

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CheriABI: enforcing valid pointer provenance and minimizing pointer privilege in the POSIX C run-time environment

The Morning Paper

Last week we saw the benefits of rethinking memory and pointer models at the hardware level when it came to object storage and compression ( Zippads ). The protections are hardware implemented and cannot be forged in software. At hardware reset the boot code is granted maximally permissive architectural capabilities.

C++ 61
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Building an elastic query engine on disaggregated storage

The Morning Paper

This paper presents Snowflake design and implementation along with a discussion on how recent changes in cloud infrastructure (emerging hardware, fine-grained billing, etc.) Tenant isolation is achieved by provisioning a separate virtual warehouse (VW) for each tenant. From shared-nothing to disaggregation. Workload characteristics.

Storage 112
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Segmentation Fault – A DBA Perspective

Percona

In order to overcome these issues, the concept of paging and segmentation was introduced, where physical address space and virtual address space were designed. Here, virtual(logical) to physical address translation is much easier as segment tables store adequate information. A detailed description of these concepts is below.

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Architectural Myopia

ACM Sigarch

Virtualization, for instance, was being addressed by IBM in the 1960s. Both virtualization and power burst onto the architecture community seemingly out of nowhere even though there was a clear historical basis and trend for both. We believed existing hardware and OS protocols protected the processor.

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AI for everyone - How companies can benefit from the advance of machine learning

All Things Distributed

Both concepts are virtually omnipresent and at the top of most buzzword rankings. The management consultants at McKinsey expect that the global market for AI-based services, software and hardware will grow annually by 15-25% and reach a volume of around USD 130 billion in 2025.

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SRE Incident Management: Overview, Techniques, and Tools

Dotcom-Montior

We are kidding of course, but you know something is bad if happens that early in the morning. You cannot virtualize everything…yet. Software services still require physical devices and hardware for them to function. Nothing good happens at 2:00 a.m., especially when we are talking about the IT industry. Asset Management.