by David Boreham | Dec 1, 2023 | Performance
I noticed this talk by my former colleague (at Netscape and AOL) Jim Roskind, who now works at Amazon.com. He gives a great introduction to the phenomenon of congestion collapse in complex queueing systems. His examples include familiar scenarios such as busy...
by Thomas Lackey | Mar 21, 2018 | Performance, Programming
In the early days of an application, deploying new features and functionality are at the top of the list. As the number of users grows and the traffic increases, other issues make their way to the forefront. Whether because of complaints from users, monitoring...
by Bozemanpass Staff | Jan 18, 2018 | Performance
Navin Shenoy from Intel has published results for the performance affects seen after deploying their recent microcode mitigation measures for Spectre and Meltdown vulnerabilities. Unfortunately it seems from another Intel article that those microcode updates may not...
by David Boreham | Jan 11, 2018 | Performance, Security
When the Meltdown and Spectre vulnerabilities were first rumored last year I wondered about something: we’re familiar here with the CPU’s hardware performance counters through our work on software performance analysis and optimization. Briefly, these...
by David Boreham | Jan 10, 2018 | Performance
Microsoft yesterday published the first of what is likely to be many articles on the performance impacts they’ve measured from the various hardware and operating system mitigation measures for the Spectre and Meltdown vulnerabilities. Initial results don’t...
by David Boreham | Jan 19, 2006 | Performance
Note: this is a very old article about an issue in the Linux/glibc heap implementation that almost certainly doesn’t exist any more. However we noticed that people out on the Internet are still trying to access this article after we moved to a new web site...
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