A look at "BPF Performance Tools"

Posted Feb 27, 2020 15:06 UTC (Thu) by hkario (subscriber, #94864)
In reply to: A look at "BPF Performance Tools" by edeloget
Parent article: A look at "BPF Performance Tools"

I'd say that "big iron" starts if your computer (or cluster) is 48U high or occupies multiple racks...

I mean, it's not like mainframes—the original big iron—aren't a thing any more.

A look at "BPF Performance Tools"

Posted Feb 27, 2020 22:02 UTC (Thu) by bgregg (guest, #46639) [Link]

I might not have been clear in the book, but the 48-CPU systems are EC2 instances and Netflix runs many thousand of them (over 200k instances of varying sizes.) I used a lot of 48-CPU examples since it's a typical instance size for a busy microservice (where the instance count can range from tens to thousands of such instances.)

A look at "BPF Performance Tools"

Posted Feb 29, 2020 12:01 UTC (Sat) by dowdle (subscriber, #659) [Link]

Mainframes ARE still a thing. Just ask IBM.

In fact, there were a couple of presentations about Mainframes at FOSDEM... or was it linux.conf.au?

There was a claim made that building large systems out of clusters of PC hardware was a problematic way to go... and that the Mainframe offered many advantages over such PC clusters.