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cppfront: Autumn update

Sutter's Mill

These contributors represent people from high school and undergrad students to full professors, from commercial developers to conference speakers, and from every continent except Antarctica. before this I never realized that emplace_back started to return something since C++17! Here’s what that reflect.h2

C++ 89
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This spring: High-Performance and Low-Latency C++ (Stockholm) and ACCU (Bristol)

Sutter's Mill

I don’t get to Europe very often apart from ISO C++ standards meetings, but this spring I’ve been able to accept invitations for two English-language European events in the last week of April. Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). Description. Sat Apr 29: ACCU closing keynote (Bristol).

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Percentiles don’t work: Analyzing the distribution of response times for web services

Adrian Cockcroft

. > system.time(wait1 <- normalmixEM(waiting, mu=c(50,80), lambda=.5, I think that the structure of the system in terms of functionality distributed across a network of lambda functions, microservices, caches, databases and external services is going to determine the number and position of each peak.

Lambda 98
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How To Add eBPF Observability To Your Product

Brendan Gregg

cachestat File system cache statistics line charts. Then, having discovered everything is C or Python, some rewrite it all in a different language. Here are the top ten tools you can run and present as a generic BPF observability dashboard, along with suggested visualizations: Tool Shows Visualization. opensnoop Files opened table.

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A thorough introduction to bpftrace

Brendan Gregg

C @ns: [256, 512) 10900 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | [512, 1k) 18291 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@| [1k, 2k) 4998 |@@@@@@@@@@@@@@ | [2k, 4k) 57 | | [4k, 8k) 117 | | [8k, 16k) 48 | | [16k, 32k) 109 | | [32k, 64k) 3 | |. Hit Ctrl-C to end. ^C Attaching 2 probes. ^C 1 /* 2 * biolatency.bt Attaching 3 probes.

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Back-to-Basics Weekend Reading - A Decomposition Storage Model

All Things Distributed

Not everybody agreed that the "N-ary Storage Model" (NSM) was the best approach for all workloads but it stayed dominant until hardware constraints, especially on caches, forced the community to revisit some of the alternatives. The first practical modern implementation is probably C-Store by Stonebraker, et al. Copeland and Setrag N.

Storage 87
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A persistent problem: managing pointers in NVM

The Morning Paper

At the start of November I was privileged to attend HPTS (the High Performance Transaction Systems) conference in Asilomar. On the last morning of the conference Daniel Bittman presented some of the work being done in the context of the Twizzler OS project to explore new programming models for NVM. The Twizzler programming model.