2014 Blog Cache Systems 
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.
Brendan Gregg
APRIL 14, 2022
offer letter logo (2014). flame graphs (2014). eBPF tools (2014-2019). I joined Netflix in 2014, a company at the forefront of cloud computing with an attractive [work culture]. Netflix has been the best job of my career so far, and I'll miss my colleagues and the culture. PMC analysis (2017). More on that soon.
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Brendan Gregg
JULY 2, 2021
This is also applicable for people adding it to their own in-house monitoring systems. You likely already have agents running on all your customer systems. There are so many options it's really your own preference based on your existing system and customer environments. cachestat File system cache statistics line charts.
Brendan Gregg
AUGUST 29, 2021
1072-aws (xxx) 12/18/2018 _x86_64_ (16 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 5.03 avg-cpu: %user %nice %system %iowait %steal %idle 14.81 avg-cpu: %user %nice %system %iowait %steal %idle 14.86 avg-cpu: %user %nice %system %iowait %steal %idle 14.95 avg-cpu: %user %nice %system %iowait %steal %idle 14.54
ACM Sigarch
MARCH 18, 2019
With two blog posts, we argue for more use of simple models beyond Amdahl’s Law. Computer systems, from the Internet-of-Things devices to datacenters, are complex and optimizing them can enhance capability and save money. To this end, we present three simple models that we find useful like Amdahl’s Law, split here into two blog posts.
Brendan Gregg
APRIL 14, 2022
offer letter logo (2014) flame graphs (2014) eBPF tools (2014-2019) PMC analysis (2017) my pandemic-abandoned desk (2020); office wall I joined Netflix in 2014, a company at the forefront of cloud computing with an attractive work culture. It was the most challenging job among those I interviewed for. Thank you.
ACM Sigarch
MARCH 25, 2019
With two blog posts, we argue for more use of simple models beyond Amdahl’s Law. Previously, Part 1 of these two blog posts provided our thesis that analytic models can complement measurement and simulations to give quick insight, show what is not possible, provide a double-check, and suggest future directions. Hill is John P.
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