Brendan Gregg
MARCH 16, 2024
The problem is that this system has a default libc that has been compiled without frame pointers, so any stack walking stops at the libc layer, producing a partial stack that's missing the application frames. This is pretty common and usually goes unnoticed as the flame graph looks ok at first glance.
Randon ASCII
OCTOBER 4, 2020
The behavior of the Windows scheduler changed significantly in Windows 10 2004, in a way that will break a few applications, and there appears to have been no announcement, and the documentation has not been updated. First, a bit of operating-system design context. Timer interrupts and their raison d’être.
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Percona
JUNE 2, 2023
While not the first open source content management system (CMS), WordPress caught on like nothing before and helped spread open source to millions. Developers, system administrators, database administrators, and enthusiasts were hip deep in open source operating systems, programming languages, and open databases like MySQL and PostgreSQL.
All Things Distributed
OCTOBER 25, 2018
AWS has been an active member of the local technology community since 2004. With the AWS based system, Exatype can do this at a fraction of the cost. This program gives access to resources such as AWS credits, a jobs board, and training content to accelerate cloud-related learning. We have a long history in South Africa.
Adrian Cockcroft
JUNE 21, 2022
Photo by Adrian I spent six years at Cambridge Consultants, building some interesting systems, managing our Sun workstations and learning a lot, but by then Sun had opened a sales office across the street, and I wanted to find out what they were going to release next, before everyone else. as a result there were product and messaging changes.
Sutter's Mill
JANUARY 11, 2021
An assertion documents the expected state of specific program variables at the point where the assertion is written, in a testable way so that we can find program bugs — logic errors that have led to corrupted program state. Assertions are only about finding bugs, not doing program work.
Brendan Gregg
OCTOBER 8, 2018
Created by Alastair Robertson , bpftrace is an open source high-level tracing front-end that lets you analyze systems in custom ways. eBPF (extended Berkeley Packet Filter) is in the Linux kernel and is the new hotness in systems engineering. bcc is powerful but laborious to program. It's shaping up to be a DTrace version 2.0:
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