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The Speed of Time

Brendan Gregg

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI.

Speed 126
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What is a message queue? How an observability platform eases message queue monitoring

Dynatrace

A message queue is a form of middleware used in software development to enable communications between services, programs, and dissimilar components, such as operating systems and communication protocols. In a distributed processing environment, message queuing is similar, although the speed and volume of messages are much greater.

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What is a message queue? How an observability platform eases message queue monitoring

Dynatrace

A message queue is a form of middleware used in software development to enable communications between services, programs, and dissimilar components, such as operating systems and communication protocols. In a distributed processing environment, message queuing is similar, although the speed and volume of messages are much greater.

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Balancing Low Latency, High Availability, and Cloud Choice

VoltDB

As a result, IT teams picked hardware somewhat blindly but with a strong bias towards oversizing for the sake of expanding the budget, leading to systems running at 10-15% of maximum capacity. Prototypes, experiments, and tests Development and testing historically involved end-of-life or ‘spare’ hardware. When is the cloud a bad idea?

Latency 52
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The Speed of Time

Brendan Gregg

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI.

Speed 52
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The Speed of Time

Brendan Gregg

CLI tools The Cassandra systems were EC2 virtual machine (Xen) instances. Was there some other program consuming CPU, like a misbehaving Ubuntu service that wasn't in CentOS? As a Xen guest, this profile was gathered using perf(1) and the kernel's software cpu-clock soft interrupts, not the hardware NMI.

Speed 40
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USENIX SREcon APAC 2022: Computing Performance: What's on the Horizon

Brendan Gregg

I'm now program co-chair for SREcon 2023 APAC, and our 2023 conference is June 14-16 in Singapore. And now, helping bring USENIX conferences to Australia by giving the first keynote: I could not have scripted or expected it. The call for participation ends on March 2nd 23:59 SGT!