Sat.Mar 16, 2024

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The Return of the Frame Pointers

Brendan Gregg

Sometimes debuggers and profilers are obivously broken, sometimes it's subtle and hard to spot. From my flame graphs page: CPU flame graph (partly broken) (Click for original SVG.) This is pretty common and usually goes unnoticed as the flame graph looks ok at first glance. But there are 15% of samples on the left, above "[unknown]", that are in the wrong place and missing frames.

Java 137
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Presentation: The Journey to a Million Ops / Sec / Node in Venice

InfoQ

Alex Dubrouski, Gaojie Liu discuss some of the tricks used in their pursuit to lower read latency and to reach 1M operations per second per node.

Latency 84